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#26 2012-05-26 16:08:18

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Generated a three device partitioned boot grub2 raid0 in my machine.

Utilized pcie sata device for the third device as Master.

Results indicate a problem with one device (all maxell16GB 400x udma devices) which does not return the same speed as the other two.

Hdparm results follow:

sh-4.2# hdparm -t /dev/md0 /dev/sda /dev/sdb /dev/sdd

/dev/md0:
 Timing buffered disk reads: 638 MB in  3.01 seconds = 212.05 MB/sec

/dev/sda:
 Timing buffered disk reads: 250 MB in  3.02 seconds =  82.71 MB/sec

/dev/sdb:
 Timing buffered disk reads: 244 MB in  3.00 seconds =  81.27 MB/sec

/dev/sdd:
 Timing buffered disk reads: 198 MB in  3.01 seconds =  65.76 MB/sec
sh-4.2# 

Will attempt a different arrangement of devices to establish all at the higher speed.

EDIT:  Cannot utilize three devices at higher speed in raid0 with my machine as it is configured.  With one device connected as a slave, the speeds of the devices are all 82mb/s or therabouts but the device /md0 speed falls to 130mb/s. The machine has only two Master sata ports and the pcie sata does not perform as sataII (probably bus limited).  Need a sata device port multiplier I guess....one such is a new mobo at $800!

Last edited by lilsirecho (2012-05-26 16:45:53)


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#27 2012-05-27 23:07:19

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Re-installed raid0 to two maxell 400x udma cf cards:

sh-4.2# hdparm -t /dev/md0 /dev/sda /dev/sdb

/dev/md0:
 Timing buffered disk reads: 554 MB in  3.01 seconds = 184.21 MB/sec

/dev/sda:
 Timing buffered disk reads: 250 MB in  3.01 seconds =  82.93 MB/sec

/dev/sdb:
 Timing buffered disk reads: 244 MB in  3.00 seconds =  81.29 MB/sec
sh-4.2# 

This speed indication seems to be consistent with many other applications with these maxell devices in raid arrays.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#28 2012-05-28 22:33:07

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

As an experiment, I connected the paired cf cards in a pattern with one pair on ch0 master and ch3 slave with the boot device in ch0 master.

The second pair of raid devices were connected to ch0slave and ch2 slave. 

Each setup is recognized for booting as CH0 devices, one is CH0 master and the other is CH0 slave.

Each can be booted separately and hdparm readings indicate  the read speeds as has been reported in previous post.

Thus one pair is ~29 GB and the other is ~59GB each bootable separately. EDIT: x86_64

My mobo is set to auto bios for boot sequencing on a gigabyte 945GCM-S2 mobo.

This arrangement allows easier selection of raid0 pairs in my machine.

I have yet to try the pcie ports (sata) for a third and fourth paired devices.

I do not expect the pcie to produce high read speeds, however.

So far, so good.!

Last edited by lilsirecho (2012-05-28 22:34:30)


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#29 2012-05-29 14:35:57

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Up to this time I haven't made the pcie boot both devices of a raid0 pair.

In toto, I am pleased with the KISS nature of the CF raid0 system.  It has low power required, quiet, higher speed , no latency lags and less complexity in the archlinux operating system.

It is probable that this approach can be improved as time goes on.  I enjoyed the experiments with bootable grub2 partitioned archlinux.

Perhaps the pcie arrangement needs a HOOK such as scsi?  Is there a scsi HOOK?


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#30 2012-05-29 15:40:28

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

It seems that scsi is indeed installed in the system HOOKS so the pcie probably should perform as well.

Try it later.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#31 2012-06-01 17:09:01

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

No luck with pcie.

Todays upgrade includes changing udev.

I will upgrade this raid0 and report the result.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#32 2012-06-01 17:19:48

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

The reboot was successful.

Must upgade the rest of the raids.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#33 2012-06-04 12:14:16

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Approximately 13% of capacity is in use in archlinux system with my compact fllash.

Typical size is 4 to 7 GB for the raid0 pairs.

Typical boot speed is ~7 seconds.  This varies with system content.

No failed components up to this time and many re-installs and dd operations have been applied to all components.  The components have been installed in raid devices for two years or more up to this point.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#34 2012-06-08 17:05:16

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Raid0 saga continues.......

Upgraded to linux-3.3.8-1-x86_64 successfully this date.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#35 2012-06-16 09:47:13

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Raid0 experiment continues with upgrade to Linux-3.4.2-2 this date.

Update includes firefox and thunderbird.

Update applied to all five pairs of CF cards.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#36 2012-06-19 16:17:06

lilsirecho
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Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Upgraded all five raid0 pairs this date to linux-3.4.3-1-x86_64 with additional packages totaling ~275mb.

System reboots and all is well.

May try a raid0 within a raid0 in an extended experiment.

Each pair of devices has different packages.  Some of these are kdenlive,firefox,vlc,mirage,qtfm,jumanji-git,leafpad,xfce4 among others.

Jumanji is a great package included in all five pairs.

So far, so good..............................


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#37 2012-06-21 11:26:38

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Corrected a deficiency in xfce4 mouse themes by copying /usr/share/icons from HDD file to all five raid0 pairs.

The mouse cursor is now quite large and is red.  This helps to navigate the curcor for this old man of nearly 87 years.
There have been over 2000 visits to this thread and the experiment continues.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#38 2012-06-23 22:35:27

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Realizing that hdparm is not a good measure of thruput, I downloaded iozone and ran the iozone -a program with the following results:

sh-4.2# iozone -a /dev/md1
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Sat Jun 23 15:15:21 2012

	Auto Mode
	Command line used: iozone -a /dev/md1
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
                                                            random  random    bkwd   record   stride                                   
              KB  reclen   write rewrite    read    reread    read   write    read  rewrite     read   fwrite frewrite   fread  freread
              64       4  182757  760859  1879725  2379626 1933893  809014 1279447   913649  1734015   771797   743988 1421755  2298136
              64       8  202469  852702  2133730  2772930 2379626  942521 1484662  1049372  1947927   955947   829001 1690338  2662899
              64      16  221334  913649  2379626  3057153 2662899 1033216 1599680  1163036  2067979   998622  1105556 1780008  3022727
              64      32  226183  952555  2561267  3363612 2892445 1105556 1638743  1119387  2006158  1002351  1452528 1828508  3203069
              64      64  228688  969761  3057153  3363612 3203069 1163036 1679761  1163036  1892980  1101022  1049372 1933893  3203069
             128       4  216934  843068  1939522  2464907 2004703  887675 1455701  1032829  1727352   847059   770474 1705404  2326073
             128       8  228086  940549  2166499  2420455 2377579  934004 1684006  1123617  2248149   821147   962469 1827299  2464907
             128      16  227025  992724  2367096  3218540 2843510 1105114 1827299  1266785  2132084  1024942  1074159 1911894  3053774
             128      32  247542  985435  2621367  3359523 2673584 1155043 1997245  1319723  2202044  1196221  1294270 2027414  3380677
             128      64  251956 1067750  2905056  3445772 3199360 1254941 1967960  1231904  2409592  1243315  1504659 2098744  2985839
             128     128  245168 1057236  3445772  3657016 3468030 1294270 2166499  1240443  2238774  1294270  1022989 2202044  3380677
             256       4  226728  880256  2015259  2480886 2034350  917880 1581810   996229  1884399   544823   861885 1248819  2371308
             256       8  250475  991629  2266207  2880164 2486631 1036624 1826695  1180188  2266207  1008392   977189 1729594  2719671
             256      16  260376  996229  2480886  2719671 2911402 1117543 2114473  1368162  2726577   914752  1075025 2114473  3123106
             256      32  273439 1027695  2639446  3499745 3197509 1274008 2170027  1437779  2943325  1213534  1062263 2330140  2783115
             256      64  276110 1052888  2812272  3605511 3368013 1325925 2223962  1447470  2903529  1391207  1230218 2458168  3454704
             256     128  269459 1152323  3087188  3667079 3368013 1354356 2285501  1325925  2692393  1319408  1610276 2350543  3410808
             256     256  273230 1093639  3654598  3605511 3410808 1280084 2350543  1274008  2413957  1340826  1142514 2392442  3410808
             512       4  182457  911184  2039772  2486072 2057359  932956 1650887  1091863  1983258   869143   851903 1977778  2391924
             512       8  258832 1010197  2285029  2891043 2521095 1079785 1977778  1230786  2357784  1011625   980673 2180616  2811557
             512      16  277208 1019791  2460437  3239989 3012719 1196499 2275345  1410215  2782414   962218  1012101 2317080  2942541
             512      32  281165 1053304  2609952  3086326 3163620 1299295 2141475  1520013  2753870  1096322  1130370 2449212  3158966
             512      64  281792 1147892  2497638  3481620 3459188 1361057 2486072  1488408  3220553  1293037  1155924 2509312  3201349
             512     128  277926 1158418  2796910  3459188 3415178 1316016 2474613  1475116  3029721  1434711  1379416 2497638  3325278
             512     256  289425 1165966  3068685  3459188 3325278 1373241 2427068  1479181  2782414  1340664  1809465 2381315  3264616
             512     512  286682 1096322  3481620  3550700 3351224 1357615 2327124  1350783  2256220  1264113  1282994 2486072  3372274
            1024       4  243578  907872  2028027  2437821 1973059  955965 1735476  1130014  1954207   872286   856115 1917562  2331932
            1024       8  266804  978172  2207295  2710090 2391665 1058967 1976691  1213334  2265510   909410   955965 2142335  2715230
            1024      16  283350 1046836  2426801  3029305 2820430 1206178 2222141  1436056  1973059   970437  1043783 2365323  2859868
            1024      32  289266 1098792  2553783  3130886 3083680 1268896 2290886  1544504  2598591  1157109  1071116 2497356  3046495
            1024      64  293315 1107005  2640123  3103735 3251778 1345623 2461573  1560781  3335105   878890  1125277 2561398  3112733
            1024     128  295353 1115342  2829721  3189002 3241960 1340164 2467229  1590254  3324778  1265904  1242826 2586074  3121783
            1024     256  294583 1094034  2805690  3046495 3160839 1326505 2516377  1556257  3220084  1379773  1319577 2392998  3066069
            1024     512  294603 1077836  2844715  3149251 2960401 1197769 2301937  1426043  2686359  1253344  1612342 2160657  2884840
            1024    1024  281714  986485  2211841  2207295 2155236 1061060 1750329  1111877  1861867  1071116  1086012 1882266  2115949
            2048       4  241284  841424  1965297  2074960 1830057  868213 1630647  1132817  1687011   826845   826209 1910655  2029850
            2048       8  264665  920500  2100328  2345819 2115848  998039 1948358  1272808  2043857   941589   897795 2153510  2248199
            2048      16  281279  981840  2316716  2500850 2544558 1073902 2188069  1392253  2434922  1001998   964640 2316716  2509617
            2048      32  270968 1013345  2572756  2720222 2673655 1147343 2354177  1533970  2482062   981728  1047577 2395538  2575842
            2048      64  294167 1047577  2662880  2763097 2775597 1221930 2373037  1579088  2631876  1091782  1077945 2510351  2748949
            2048     128  295696 1041102  2622235  2839830 2913021 1195569 2566606  1650385  3436240   821782  1071090 2482779  2753355
            2048     256  296124 1067761  2659582  2884652 2964289 1198405 2579710  1626633  3447273  1058942  1107120 2404254  2687877
            2048     512  293364  982739  2522144  2510351 2513289 1128353 2252916  1591375  3122697  1097501  1081882 2021729  2446713
            2048    1024  283657  868915  1807339  1823453 1762469  930875 1642495  1091089  1745990  1012390  1242791 1681397  1756343
            2048    2048  259673  775418  1284801  1276781 1289623  825811 1331606   829880  1307885   840353   850084 1280778  1384623
            4096       4  238818  791013  1944786  1984550 1714419  768474 1604424  1120976  1627219   778997   771372 1828656  1930364
            4096       8  263051  870580  2070910  2196407 1994225  888316 1952522  1290573  2019781   799219   850665 2101820  2155619
            4096      16  276832  934511  2330167  2358315 2370354  969037 2175271  1497181  2321978   867240   911843 2252859  2468795
            4096      32  286633  962845  2417722  2547503 2558505 1046225 2385825  1587670  2508447   942250   944218 2463132  2568066
            4096      64  291283  973429  2540722  2675656 2595614 1064177 2432098  1632476  2617364   972933   977583 2485223  2652931
            4096     128  295142  983234  2542602  2729213 2686114 1094551 2590917  1688305  2689478   899196   983234 2492796  2693273
            4096     256  279094  981549  2645985  2775061 2671911 1048908 2566532   893909  3564431   985095  1004153 2548637  2700046
            4096     512  296937  963980  2635836  2778652 2671911 1063320 2541097  1592526  3382659   971722   966311 2520592  2658267
            4096    1024  286613  859603  1883178  1898159 1829240  900232 1614527  1114287  2015752   703435   838664 1818012  1829240
            4096    2048  274843  756262  1199727  1193476 1210463  803894 1206891   835889  1216118   794745  1047309 1178090  1188605
            4096    4096  256753  763895   940548   866322 1185570  801082 1144805   711859  1169589   814489   809805  951223  1025002
            8192       4  228871  718029  1938948  1677328 1629906  664883 1648597  1147665  1563027   742290   736956 1885017  1880993
            8192       8  258897  831757  2097817  2191616 2011834  850134 1933058  1301958  1685887   817800   820025 2077020  2043907
            8192      16  270317  824967  2307601  2311482 2276262  934836 2260389  1479250  1747803   869364   865510 2311482  2411411
            8192      32  276244  916533  2435339  2486807 2471247  975690 2418710  1606886  1973472   912856   901811 2442611  2538620
            8192      64  285624  941599  2559231  2637415 2603048 1033941 2477840  1658304  2170709   929953   919919 2557706  2634988
            8192     128  288643  943357  2523889  2689438 2709800 1038786 2571296  1707756  2632364   955557   939334 2545013  2542565
            8192     256  281522  952986  2612350  2582505 2704680 1046888 2615532  1685969  2702765   959345   943565 2609771  2741583
            8192     512  291488  944317  2610564  2729821 2700004 1042126 2557516  1688372  3660429   888013   890822 2564005  2708945
            8192    1024  280731  839500  1899817  1840489 1811572  802332 1730114  1148816  1994666   711974   702038 1499783  1447834
            8192    2048  239736  694124  1174659  1156589 1081181  789283 1149431   795791  1049318   774289   771075 1172815  1165455
            8192    4096  269146  734907  1135716  1122360 1153831  791483 1149431   715338  1135903   820084  1060590 1154452  1136956
            8192    8192  265587  743446  1131639  1138878 1141413  783703 1128368   696065  1135866   788450   800929 1124675  1128850
           16384       4  233141  741992  1971083  2039346 1536392  718373 1668239  1155496  1472997   721094   714333 1918316  1966908
           16384       8  256585  818997  2190904  2264247 1902858  819974 1984288  1318743  1986869   804283   803137 2151800  2205105
           16384      16  270416  870651  2357782  2481671 2246850  905099 2256737  1481668  2276172   855296   847773 2362159  2465555
           16384      32  279872  901359  2467148  2634160 2482478  961557 2461492  1606090  2510226   891791   886819 2499453  2596930
           16384      64  284271  903647  2565614  2545372 2608959  952389 2560738  1695529  2623501   878082   847292 2594087  2672266
           16384     128  285008  934363  2643483  2719753 2703170 1016067 2619401  1717222  2679769   927315   919265 2629423  2719322
           16384     256  287126  943458  2639117  2751221 2742547  985977 2638307  1436689  2689417   937934   926690 2663565  2727850
           16384     512  287504  933513  2636283  2737521 2710313 1013116 2626007  1664723  2692051   855743   861731 2630329  2727958
           16384    1024  273860  824678  1733204  1821695 1734297  883331 1794110  1001467  1832431   641154   678926 1779522  1783401
           16384    2048  268563  741760  1154526  1029276 1159356  791536 1142377   837972  1123421   673378   689333 1144698  1115996
           16384    4096  265956  744355  1117920  1141504 1103151  788910 1119122   825967  1093513   772981   792915 1124414  1103452
           16384    8192  265677  748335  1031734  1074366 1118284  761512 1115090   742529  1111753   856821  1076841 1118047  1112059
           16384   16384  265418  745065  1012369  1132586 1121587  789363 1127976   609453  1127125   800582   802115 1127217  1129700
           32768      64  282110  826204  2592805  2495631 2634100  960320 2621689  1668256  2637892   901062   898541 2650508  2654142
           32768     128  279793  899800  2640223  2285590 2690091 1004444 2660410  1716317  2687882   887826   831507 2680176  2576281
           32768     256  284353  920704  2671424  2554636 2572471  975299 2687461  1749214  2668209   890507   911817 2695631  2546448
           32768     512  282602  743541  2653066  2684364 2698065 1000066 2701141  1708360  2697642   838442   779075 2660565  2675377
           32768    1024  273105  820943  1749303  1737714 1754260  884285 1760665  1050123  1745770   664274   667727 1709337  1668094
           32768    2048  265980  736275  1117101  1136001 1118137  787806 1087335   728015   970875   662580   643872 1115432  1124771
           32768    4096  264950  679144  1101301  1118018 1110933  783906 1056005   763236  1042003   696109   700665  976199  1130163
           32768    8192  265650  680735  1106087  1106461 1112399  795029 1055803   754277  1092373   778890   797099  969205  1123502
           32768   16384  263913  678681  1113426  1120461  982227  836579 1074221   645520  1100517   929509   952203 1104745  1116837
           65536      64  280695  909601  2659324  2715277 2637178  974019 2640446  1693569  2643443   894494   893616 2683704  2703740
           65536     128  283449  924618  2687009  2759768 2708322  999876 2702517  1725094  2709309   910349   910904 2726562  2607583
           65536     256  279916  890919  2713133  2763597 2745764  969526 2747493  1742978  2749691   909830   914169 2703633  2575890
           65536     512  284770  916626  2525666  2718661 2687009 1004550 2553516  1771430  2696499   842473   840873 2654137  2405958
           65536    1024  272276  814161  1570131  1784946 1751318  875622 1408497   985667  1657000   633015   656666 1416970  1770233
           65536    2048  261586  735294   927708  1098067 1147098  797034 1115486   793191  1144476   615275   617535  934733  1012248
           65536    4096  262244  742566   995322  1135531 1121347  772602  987700   813364  1003490   694590   664658 1068770  1132117
           65536    8192  265215  707236  1034539  1138645 1136752  792733 1001800   815074  1097243   709740   686558 1056674  1148767
           65536   16384  273138  737925  1126005  1134940 1055315  837381 1128371   796701  1079032   770583   806011 1064552  1145774
          131072      64  317125  929766  2688045  2749922 2651626  974223 2664451  1699826  2665200   886711   924285 2717194  2739276
          131072     128  295368  923868  2728671  2768089 2526105 1039356 2537309  2026310  2736944   911817   949157 2761845  2781661
          131072     256  293094  938696  2746858  2813362 2772961  996337 2676515  2059289  2769037   895496   905562 2734602  2795778
          131072     512  285409  913303  2659424  2761332 2694580  996138 2734602  1720579  2461345   799185   835326 2734317  2761914
          131072    1024  283691  833324  1748349  1723270 1860206  944185 1670412  1103644  1767329   673030   662562 1818445  1737963
          131072    2048  281514  724295  1141434  1158832 1106318  838382 1107073   857346  1140253   619787   631642 1117378  1153386
          131072    4096  270398  730205  1083060  1117703 1112173  832557 1065045   853366   994106   674481   655884 1110470  1114538
          131072    8192  265779  749938  1120859  1089341 1125631  850613 1112062   807263  1078720   666002   673764 1086977  1132105
          131072   16384  274166  735086  1058004  1098086 1098518  829280 1075694   809431  1082962   709924   712676 1086624  1091348
          262144      64  291428  682232  2714348  2777331 2582548  752794 2634136  1998139  2628217   698583   643326 2649554  2648852
          262144     128  269835  689814  2677453  3017587 2947161  766604 2674066  2037318  2710902   729675   715913 2692691  3011281
          262144     256  275130  705346  2460430  3037133 2982399  755957 2816755  2054356  2738279   692549   706814 2683150  2843519
          262144     512  295365  708005  2646958  2997579^C
iozone: interrupted

exiting iozone

sh-4.2# 

A great deal of info is developed and indicates thruput rather than simple sequential.

The headings appear at the top to indicate the test performed and the results are shown in KBYTES.

This set of data was made on maxell 16GB devices running in raid0 /dev/md1.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#39 2012-06-24 23:02:25

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Upgraded this date to linux-3.4.4-1 with all five pairs.

No problems encountered.

I am attempting to generate graphs for the iozone data but haven't a clue as to why the Generate_Graphs package does not produce the graphs with the scripts provided for gnu plot.

I would appreciate suggestions for graphing the iozone data with the present state of the iozone packages.  There seems to be a lack of co-ordination with the iozone data file or entries into the scripts file. 

I installed the iozone paclages from the aur but they are orphaned. 

The data is generated as is shown in previous post but doesn't produce any graphs with the Generate_Graphs command.  Will post the output obtained at a later time.

The packages provided are supposed to generate 3d color graphs for each of the data categories. Much of the google data applies to windows but gnuplot is covered in many url sources.

I guess I just don't understand!!!!!!!!


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#40 2012-06-25 10:33:00

eldragon
Member
From: Buenos Aires
Registered: 2008-11-18
Posts: 1,026

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

i think you need a blog

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#41 2012-06-26 04:01:50

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Experiment continues with upgrade to linux-3.4.4-2 with no problems.

Will soon have a three device experiment completed with the same kernel.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#42 2012-06-26 13:12:16

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Continuing the experiments I generated a three device raid0 bootable grub2 partitioned.

The devices are three adata 16GB 266x compact flash devices.  One of them is in an adapter to a pata port and the others are in adapters to sata ports(sataII)

The results with hdparm on mounted raid0 devices can be misleading.  In the three device case the indicated read speed was ~73mb/s.  If hdparm is run on an unmounted raid0 , from an HDD boot for example, the raid0 speed is double the slowest device read speed.  This is the expected result.

There is a caveat with this data as observed because there was an error in applying dma to the devices, at least one of them.  It is something I need to look into since it doesn't show up in every raid0 system I have geerated.

The three device raid0 took about 1 and 1/2 hours to generate using xfce4 and installing xorg,firefox,leafpad,mirage,vlc, jumanji,thunderbird,xpdf,gamin,gparted and qtfm.

The read speed in hdparm from HDD is 143mb/s.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#43 2012-06-26 22:18:02

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Performed an install via internet with archiso x86_64 using 3 maxell 16GB UDMA 400x devices.  Again this is raid0 partitioned boot with grub2 with three CF devices.  The entire gamut including the packages all downloads and installs to xfce4 took ~1 and 1/2 hours.

The three device setup has an interesting sidelight when using hdparm for read speed.  The mobo has one pata and two sata ports such that speeds are not equal for all three devices.  The pata port is limited .

The result of running hdparm within the booted raid0 is shown below:

sh-4.2# hdparm -t /dev/md3

/dev/md3:
 Timing buffered disk reads: 268 MB in  3.01 seconds =  89.09 MB/sec
sh-4.2# hdparm -t /dev/md3 /dev/sda /dev/sdb /dev/sdc

/dev/md3:
 Timing buffered disk reads: 274 MB in  3.01 seconds =  91.04 MB/sec

/dev/sda:
 Timing buffered disk reads: 188 MB in  3.00 seconds =  62.62 MB/sec

/dev/sdb:
 Timing buffered disk reads: 232 MB in  3.02 seconds =  76.83 MB/sec

/dev/sdc:
 Timing buffered disk reads: 222 MB in  3.01 seconds =  73.73 MB/sec
sh-4.2# 

Because the linux system now sets up mdadm devices as md127 or some such, the ....cat /proc/mdstat info is oriented thereby. The hdparm run can be made on that device ID to obtain the read speed for the same devices which are not mounted in a running raid.  This is obtained with an HDD boot.  The next post will illustrate what happens with that readout.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#44 2012-06-26 22:31:16

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Booted in USB HDD into archlinux.

Performed the hdparm read speed again with the following results...first on /dev/md127 and then after stopping that on the assembled /dev/md3:

 sh-4.2# hdparm -t /dev/md127
/dev/md127:
 Timing buffered disk reads: 630 MB in  3.01 seconds = 209.31 MB/sec
sh-4.2# mdadm --stop /dev/md127
mdadm: stopped /dev/md127
sh-4.2# mdadm --assemble /dev/md3 /dev/sda2 /dev/sdb2 /dev/sdc2
mdadm: /dev/md3 has been started with 3 drives.
sh-4.2# hdparm -t /dev/md3 /dev/sda /dev/sdb /dev/sdc

/dev/md3:
 Timing buffered disk reads: 632 MB in  3.00 seconds = 210.40 MB/sec

/dev/sda:
 Timing buffered disk reads: 194 MB in  3.03 seconds =  64.07 MB/sec

/dev/sdb:
 Timing buffered disk reads: 248 MB in  3.01 seconds =  82.52 MB/sec

/dev/sdc:
 Timing buffered disk reads: 244 MB in  3.00 seconds =  81.24 MB/sec
sh-4.2# 

The result is a bit perplexing since the read speed seems out of sync with expected three times the lowest speed of the combo.

It also demonstrates the advantage of using sata ports. 
Wish I had four sata ports!!!


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#45 2012-07-02 16:47:24

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Performed a thruput test with iozone on a three device raid0 using maxell devices:

sh-4.2# iozone -i 0 -t 2
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Mon Jul  2 09:52:36 2012

	Command line used: iozone -i 0 -t 2
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
	Throughput test with 2 processes
	Each process writes a 512 Kbyte file in 4 Kbyte records

	Children see throughput for  2 initial writers 	=  241157.19 KB/sec
	Parent sees throughput for  2 initial writers 	=   18227.00 KB/sec
	Min throughput per process 			=   30119.00 KB/sec 
	Max throughput per process 			=  211038.19 KB/sec
	Avg throughput per process 			=  120578.59 KB/sec
	Min xfer 					=     104.00 KB

	Children see throughput for  2 rewriters 	=  213359.66 KB/sec
	Parent sees throughput for  2 rewriters 	=   21395.65 KB/sec
	Min throughput per process 			=   88779.79 KB/sec 
	Max throughput per process 			=  124579.87 KB/sec
	Avg throughput per process 			=  106679.83 KB/sec
	Min xfer 					=     360.00 KB



iozone test complete.
sh-4.2# 

Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#46 2012-07-02 16:56:28

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Another iozone result using 2GB file size:

sh-4.2# iozone -a -g 2g -i 0
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Mon Jul  2 10:00:15 2012

	Auto Mode
	Using maximum file size of 2097152 kilobytes.
	Command line used: iozone -a -g 2g -i 0
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
                                                            random  random    bkwd   record   stride                                   
              KB  reclen   write rewrite    read    reread    read   write    read  rewrite     read   fwrite frewrite   fread  freread
              64       4  180788  688639                                                                                            
              64       8  205728  727850                                                                                            
              64      16  218452  852702                                                                                            
              64      32  218452  942521                                                                                            
              64      64  225423  831569                                                                                            
             128       4  211883  776042                                                                                            
             128       8  228086  901083                                                                                            
             128      16  239695  992724                                                                                            
             128      32  234871 1032829                                                                                            
             128      64  244832 1030846                                                                                            
             128     128  251956  913347                                                                                            
             256       4  230624  873809                                                                                            
             256       8  245943  962301                                                                                            
             256      16  264741  996229                                                                                            
             256      32  271709 1103757                                                                                            
             256      64  279198 1147398                                                                                            
             256     128  274979 1148625                                                                                            
             256     256  279488 1168627                                                                                            
             512       4  233579  904658                                                                                            
             512       8  260023 1002183                                                                                            
             512      16  274095 1060063                                                                                            
             512      32  269047 1125040                                                                                            
             512      64  286033 1068503                                                                                            
             512     128  290090 1113374                                                                                            
             512     256  290247 1051242                                                                                            
             512     512  290758 1137555                                                                                            
            1024       4  241673  861957                                                                                            
            1024       8  263789  992182                                                                                            
            1024      16  272924  984676                                                                                            
            1024      32  285478 1134192                                                                                            
            1024      64  289578 1120288                                                                                            
            1024     128  295170 1109579                                                                                            
            1024     256  293496 1083546                                                                                            
            1024     512  294583 1119120                                                                                            
            1024    1024  291999 1034232                                                                                            
            2048       4  243901  811764                                                                                            
            2048       8  213782  924662                                                                                            
            2048      16  279776  937274                                                                                            
            2048      32  277732  898640                                                                                            
            2048      64  279440  966050                                                                                            
            2048     128  291898 1000015                                                                                            
            2048     256  285040 1012390                                                                                            
            2048     512  291077  982739                                                                                            
            2048    1024  283423  869972                                                                                            
            2048    2048  268378  740715                                                                                            
            4096       4  233137  760783                                                                                            
            4096       8  256416  819501                                                                                            
            4096      16  270558  900988                                                                                            
            4096      32  275916  943336                                                                                            
            4096      64  289063  954129                                                                                            
            4096     128  268432  952120                                                                                            
            4096     256  287843  965822                                                                                            
            4096     512  287035  949436                                                                                            
            4096    1024  265388  836784                                                                                            
            4096    2048  266702  738702                                                                                            
            4096    4096  255106  744432                                                                                            
            8192       4  234297  757894                                                                                            
            8192       8  254181  824393                                                                                            
            8192      16  270647  889876                                                                                            
            8192      32  277095  904089                                                                                            
            8192      64  264377  927518                                                                                            
            8192     128  280616  649844                                                                                            
            8192     256  285108  948907                                                                                            
            8192     512  285207  943565                                                                                            
            8192    1024  269926  829408                                                                                            
            8192    2048  260285  743849                                                                                            
            8192    4096  294050  727917                                                                                            
            8192    8192  252341  726117                                                                                            
           16384       4  229336  656491                                                                                            
           16384       8  250535  822369                                                                                            
           16384      16  260291  849964                                                                                            
           16384      32  268458  901052                                                                                            
           16384      64  276592  900556                                                                                            
           16384     128  283205  931602                                                                                            
           16384     256  277506  932284                                                                                            
           16384     512  284104  937307                                                                                            
           16384    1024  272674  824559                                                                                            
           16384    2048  264296  697519                                                                                            
           16384    4096  258492  742032                                                                                            
           16384    8192  265921  756732                                                                                            
           16384   16384  262918  743340                                                                                            
           32768      64  272295  899429                                                                                            
           32768     128  279214  900537                                                                                            
           32768     256  280605  927902                                                                                            
           32768     512  280953  915839                                                                                            
           32768    1024  264462  827766                                                                                            
           32768    2048  262539  734626                                                                                            
           32768    4096  260661  734575                                                                                            
           32768    8192  253430  735054                                                                                            
           32768   16384  258082  748725                                                                                            
           65536      64  269732  903556                                                                                            
           65536     128  280242  911094                                                                                            
           65536     256  275570  937929                                                                                            
           65536     512  279410  904358                                                                                            
           65536    1024  260332  844100                                                                                            
           65536    2048  246226  736823                                                                                            
           65536    4096  253900  724667                                                                                            
           65536    8192  261142  737337                                                                                            
           65536   16384  258722  717659                                                                                            
          131072      64  289211  911774                                                                                            
          131072     128  274552  884164                                                                                            
          131072     256  288292  918700                                                                                            
          131072     512  277153  907863                                                                                            
          131072    1024  293685  839215                                                                                            
          131072    2048  249912  736508                                                                                            
          131072    4096  271832  712065                                                                                            
          131072    8192^C
iozone: interrupted

exiting iozone

sh-4.2# 

Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#47 2012-07-02 17:22:38

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Performed another iozone test involving the CPU utilization which outputs excel data for which I have no program to plot same:

sh-4.2# iozone -a -+u -b output.xls
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Mon Jul  2 10:22:46 2012

	Auto Mode
	CPU utilization Resolution = 0.003 seconds.
	CPU utilization Excel chart enabled
	Command line used: iozone -a -+u -b output.xls
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
                                                            random  random    bkwd   record   stride                                   
              KB  reclen   write rewrite    read    reread    read   write    read  rewrite     read   fwrite frewrite   fread  freread
              64       4  177324  780776  1947927  2561267 1933893  852702 1304314   942521  1232453   681644   809014 1330167  2358717
              64       8  195680  877797  2133730  2892445 2298136  955947 1421755  1013707  1392258   901377   969761 1518251  2772930
              64      16  213246  942521  2467108  3203069 2923952 1083249 1599680  1124074  1690338   969761  1163036 1722886  2892445
              64      32  218452  789967  2662899  3057153 3022727 1066042 1553394  1124074  1828508   901377  1526887 1780008  3203069
              64      64  222250  929467  3203069  3541098 3363612  942521 1232453  1105556  1690338   809014  1029254 1879725  3203069
             128       4  211632  747933  1975201  2464907 2035099  895074 1436229   978253  1622919   864797   776042 1471662  2377579
             128       8  233645  901083  2166499  2843510 2511022 1048974 1663139  1133103  2066432  1007629   766076 1885042  2714132
             128      16  245729  969421  2453642  2985839 2985839 1175271 1878447  1306873  2132084  1076312  1121270 2035099  2969325
             128      32  252430 1024942  2727923  3359523 3277486 1266785 1939522  1319723  2367096  1303699  1196221 2140585  3277486
             128      64  245616  895074  2558895  3199360 3297617 1130717 2066432  1346196  1471662  1172704  1543594 1997245  3560017
             128     128  252906  983630  3759450  3895854 3657016 1319723 2166499  1319723  2035099  1142750  1243315 2367096  3657016
             256       4  226968  844929  1938842  2613746 2118645  972763 1662639  1090308  1881098   927393   900936 1952947  2463808
             256       8  248505  987979  2247235  2783115 2563818 1117543 1752173  1168627  2135500  1032636   891956 1924938  2350543
             256      16  260692 1057034  2533571  3245838 3009318 1260547 2034350  1391207  2509882   955451  1112909 2205688  3159869
             256      32  270001 1099237  2692393  3410808 2872459 1327564 2242541  1471270  2842047  1286217  1168627 2325094  3368013
             256      64  201762 1076103  2880164  3667079 3605511 1391207 2371308  1514860  2783115  1430119  1407621 2247235  3410808
             256     128  279780 1157291  3009318  3557725 3454704 1368162 2081678   833776  2665657  1368162  1924938 2533571  3654598
             256     256  280072 1158540  3705040  3823789 3810220 1422540 2509882  1398455  2509882  1405778  1340826 2588541  3717869
             512       4  236486  891884  1931527  2497638 1983258  991998 1667552  1091863  1968713   918982   891884 1931527  2405320
             512       8  258739  964378  2265742  2826358 2532990 1091863 2007358  1251589  2347475  1073309  1013534 2178404  2638816
             512      16  272911 1069035  2532990  3158966 3029721 1296159 2287463  1454140  2739816  1164070  1086890 2413429  3104171
             512      32  281792 1113374  2708713  3437042 3393590 1391032 2474613  1537424  3086326  1267097  1204552 2438090  3325278
             512      64  282868 1168504  2845081  3659616 3527371 1433753 2584820  1575781  3239989  1326585  1233614 2609952  3481620
             512     128  287488 1193175  2796910  3736016 3634839 1459080 2597325  1594501  3201349  1533034  1484293 2483197  3684733
             512     256  288919 1026126  3220553  3762197 3628697 1417662 2597325  1480200  2875558  1388334  1861217 2327124  3610395
             512     512  285729 1122687  3736016  3849877 3481620 1454140 2198475  1395552  2391924  1380303  1261144 2575520  3415178
            1024       4  241510  885778  1972153  2260740 1973059  976172 1612342  1109579  1868347   897438   829175 1882266  2206161
            1024       8  265435  957030  2222141  2625597 2338280 1079190 1988589  1273788  1925298   987392   930894 2110750  2419964
            1024      16  277438 1018052  2365323  2844715 2611230 1183902 2098375  1426043  2522288  1094034   985580 2364021  2774874
            1024      32  286430 1026078  2565989  2592318 3103735  953630 2426801  1551758  2908281  1206178  1115632 2503178  3029305
            1024      64  290656 1130312  2744728  3140041 3249318 1372279 2572135  1643185  3447541  1278338  1210257 2586074  3239514
            1024     128  296822 1056623  2760606  2813041 3179559 1279861 2553783  1649496  3469823  1333093  1245710 2586074  3191372
            1024     256  299680 1163693  2884840  3355952 3261656 1361836 2586074  1584972  3294177  1247519  1333507 2398343  3048658
            1024     512  294260 1104727  3066069  3369115 3074849 1319577 2619192  1458489  2798378  1289467  1741104 2271501  3003881
            1024    1024  287735  977950  2461573  2534194 2382379 1115342 1973059  1103592  2102484   490415  1128826 2174880  2275110
            2048       4   37465  846648  1978880  1992189 1740330  859783 1624172  1109408  1647536   852954   827482 1853353  1906837
            2048       8  267326  893964  2162183  2288326 2126850 1026545 1920909  1269610  2027934   977149   882847 2050198  2162727
            2048      16  284333 1003988  2285891  2553635 2540795 1138522 2226060  1465907  2364545   787647  1013345 2348384  2449504
            2048      32  291443 1045410  2519185  2719361 2704804 1198405 2417789  1577928  2662880   970196  1031724 2443928  2619037
            2048      64  295788 1052971  2601586  2800938 2913021 1211077 2406275  1654517  2753355  1056208  1076728 2464968  2734946
            2048     128  298108 1045919  2673655  2892423 2913021 1224892 2544558  1531781  3429381   831165  1058942 2562778  2778290
            2048     256  296810 1033337  2687877  2929912 2937929 1200414 2550602  1645012  3567536  1072829  1130283 2395538  2809182
            2048     512  298585  989417  2801852  2998435 2805512  946360 2494314  1581414  2083516  1075515   995610 2491420  2756005
            2048    1024  286313  898640  1930406  2142232 1880538  997112 2026020  1059464  2094183  1045919  1332432 1939560  1982533
            2048    2048  274458  778087  1304508  1300361 1350023  832535 1305103   852615  1318727   845565   851263 1359854  1351084
            4096       4  244102  801568  1943906  1940174 1457674  779457 1683507   684844  1222696   791195   783760 1916795  1962560
            4096       8  265782  875237  2128907  2173070 2082457  914708 1968180  1329422  2027648   739370   865623 2126799  2181070
            4096      16  280104  939879  2391139  2500779 1909764 1015850 2196407  1202919  2195284   855664   917737 2347359  2388479
            4096      32  289736  969967  2477696  2612190 2602298 1048332 2464545  1552097  2493158   955881   952383 2500415  2603876
            4096      64  292111  985095  2547125  2730514 2608620 1083848 2542602  1659601  2658267   955190   970569 2585847  2692851
            4096     128  271959  993181  2671911  2738348 2645985 1094621 2531363   852099  2622157   983910   994216 2571141  2778652
            4096     256  295889  963980  2719708  2815077 2820623 1122441 2632605  1666362  3605576  1051927  1005152 2595614  2809093
            4096     512  279899  975696  2756362  2866270 2155890 1069410 2550150  1080168  3589754   950592   933241 2532855  2748864
            4096    1024  281163  820832  1786256  1748977 1691130  892377 1735549  1065827  1961663   840017   839155 1750403  1767875
            4096    2048  271113  741348  1185161  1132429 1192731  798588 1078134   835442  1150555   787857  1034632 1157376  1166967
            4096    4096  262108  728306  1196886  1184099 1119442  780200 1177283   805855  1174948   700652   807749 1151480  1167681
            8192       4  234613  755228  1852096  1944435 1633548  751692 1596582  1160848  1593768   735033   705715 1510596  1810808
            8192       8  255696  773122  2026668  2089778 1907305  755594 1742220   778853  1705637   757894   758797 2014311  1892701
            8192      16  250045  865881  2247378  2091305 1786238  919501 2141219  1518138  2204553   873719   854490 2268597  2319283
            8192      32  277910  902996  2375895  2441743 2388281  992000 2288238  1660628  2184510   912977   896493 2359417  2424513
            8192      64  282601  914678  2433098  2546522 2509877 1007859 2382154  1681761  1939386   929123   911548 2446960  2511345
            8192     128  281589  850850  2023684  2545768 2088762  936875 2465218  1720670  2394606   945304   931238 2497472  2547278
            8192     256  285833  924200  2569566  2606603 2599700 1033443 2488428  1722827  2485368   946606   922215 2483931  2574379
            8192     512  285783  918886  2502201  2580953 2622319 1023348 2452724  1747092  3693481   793402   862404 2449751  2240053
            8192    1024  275131  820828  1727504  1703101 1657984  881882 1689119   795423  1950949   700350   722666 1698890  1697128
            8192    2048  265776  729865  1101245  1082305 1123866  800221 1104218   701551  1122837   770349   769073 1125117  1114859
            8192    4096  265248  722848  1120202  1087202 1133992  739813 1044502   596649  1120786   811810  1054859 1135415  1126666
            8192    8192  262597  731559  1128072  1140655 1128702  794411 1111828   697067  1130894   792122   796271 1123902  1125891
           16384       4  229262  754853  1929790  1988364 1536701  741527 1658136  1173231   995201   699756   729051 1741152  1744822
           16384       8  255385  818665  2152676  2202984 1991476  842018 1937298  1327712  1991937   816341   784900 2109395  2151800
           16384      16  265022  871722  2350283  2444245 2193281  905289 2251487  1490667  2283812   867289   864550 2350042  2390840
           16384      32  271798  806653  2444332  2576870 2454547  966208 2350042  1661021  2483195^C
iozone: interrupted

Excel output is below:

"Writer report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   177324  195680  213246  218452  222250 
"128"   211632  233645  245729  252430  245616  252906 
"256"   226968  248505  260692  270001  201762  279780  280072 
"512"   236486  258739  272911  281792  282868  287488  288919  285729 
"1024"   241510  265435  277438  286430  290656  296822  299680  294260  287735 
"2048"   37465  267326  284333  291443  295788  298108  296810  298585  286313  274458 
"4096"   244102  265782  280104  289736  292111  271959  295889  279899  281163  271113  262108 
"8192"   234613  255696  250045  277910  282601  281589  285833  285783  275131  265776  265248  262597 
"16384"   229262  255385  265022  271798 

"Re-writer report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   780776  877797  942521  789967  929467 
"128"   747933  901083  969421  1024942  895074  983630 
"256"   844929  987979  1057034  1099237  1076103  1157291  1158540 
"512"   891884  964378  1069035  1113374  1168504  1193175  1026126  1122687 
"1024"   885778  957030  1018052  1026078  1130312  1056623  1163693  1104727  977950 
"2048"   846648  893964  1003988  1045410  1052971  1045919  1033337  989417  898640  778087 
"4096"   801568  875237  939879  969967  985095  993181  963980  975696  820832  741348  728306 
"8192"   755228  773122  865881  902996  914678  850850  924200  918886  820828  729865  722848  731559 
"16384"   754853  818665  871722  806653 

"Reader report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   1947927  2133730  2467108  2662899  3203069 
"128"   1975201  2166499  2453642  2727923  2558895  3759450 
"256"   1938842  2247235  2533571  2692393  2880164  3009318  3705040 
"512"   1931527  2265742  2532990  2708713  2845081  2796910  3220553  3736016 
"1024"   1972153  2222141  2365323  2565989  2744728  2760606  2884840  3066069  2461573 
"2048"   1978880  2162183  2285891  2519185  2601586  2673655  2687877  2801852  1930406  1304508 
"4096"   1943906  2128907  2391139  2477696  2547125  2671911  2719708  2756362  1786256  1185161  1196886 
"8192"   1852096  2026668  2247378  2375895  2433098  2023684  2569566  2502201  1727504  1101245  1120202  1128072 
"16384"   1929790  2152676  2350283  2444332 

"Re-Reader report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   2561267  2892445  3203069  3057153  3541098 
"128"   2464907  2843510  2985839  3359523  3199360  3895854 
"256"   2613746  2783115  3245838  3410808  3667079  3557725  3823789 
"512"   2497638  2826358  3158966  3437042  3659616  3736016  3762197  3849877 
"1024"   2260740  2625597  2844715  2592318  3140041  2813041  3355952  3369115  2534194 
"2048"   1992189  2288326  2553635  2719361  2800938  2892423  2929912  2998435  2142232  1300361 
"4096"   1940174  2173070  2500779  2612190  2730514  2738348  2815077  2866270  1748977  1132429  1184099 
"8192"   1944435  2089778  2091305  2441743  2546522  2545768  2606603  2580953  1703101  1082305  1087202  1140655 
"16384"   1988364  2202984  2444245  2576870 

"Random read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   1933893  2298136  2923952  3022727  3363612 
"128"   2035099  2511022  2985839  3277486  3297617  3657016 
"256"   2118645  2563818  3009318  2872459  3605511  3454704  3810220 
"512"   1983258  2532990  3029721  3393590  3527371  3634839  3628697  3481620 
"1024"   1973059  2338280  2611230  3103735  3249318  3179559  3261656  3074849  2382379 
"2048"   1740330  2126850  2540795  2704804  2913021  2913021  2937929  2805512  1880538  1350023 
"4096"   1457674  2082457  1909764  2602298  2608620  2645985  2820623  2155890  1691130  1192731  1119442 
"8192"   1633548  1907305  1786238  2388281  2509877  2088762  2599700  2622319  1657984  1123866  1133992  1128702 
"16384"   1536701  1991476  2193281  2454547 

"Random write report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   852702  955947  1083249  1066042  942521 
"128"   895074  1048974  1175271  1266785  1130717  1319723 
"256"   972763  1117543  1260547  1327564  1391207  1368162  1422540 
"512"   991998  1091863  1296159  1391032  1433753  1459080  1417662  1454140 
"1024"   976172  1079190  1183902  953630  1372279  1279861  1361836  1319577  1115342 
"2048"   859783  1026545  1138522  1198405  1211077  1224892  1200414  946360  997112  832535 
"4096"   779457  914708  1015850  1048332  1083848  1094621  1122441  1069410  892377  798588  780200 
"8192"   751692  755594  919501  992000  1007859  936875  1033443  1023348  881882  800221  739813  794411 
"16384"   741527  842018  905289  966208 

"Backward read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   1304314  1421755  1599680  1553394  1232453 
"128"   1436229  1663139  1878447  1939522  2066432  2166499 
"256"   1662639  1752173  2034350  2242541  2371308  2081678  2509882 
"512"   1667552  2007358  2287463  2474613  2584820  2597325  2597325  2198475 
"1024"   1612342  1988589  2098375  2426801  2572135  2553783  2586074  2619192  1973059 
"2048"   1624172  1920909  2226060  2417789  2406275  2544558  2550602  2494314  2026020  1305103 
"4096"   1683507  1968180  2196407  2464545  2542602  2531363  2632605  2550150  1735549  1078134  1177283 
"8192"   1596582  1742220  2141219  2288238  2382154  2465218  2488428  2452724  1689119  1104218  1044502  1111828 
"16384"   1658136  1937298  2251487  2350042 

"Record rewrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   942521  1013707  1124074  1124074  1105556 
"128"   978253  1133103  1306873  1319723  1346196  1319723 
"256"   1090308  1168627  1391207  1471270  1514860  833776  1398455 
"512"   1091863  1251589  1454140  1537424  1575781  1594501  1480200  1395552 
"1024"   1109579  1273788  1426043  1551758  1643185  1649496  1584972  1458489  1103592 
"2048"   1109408  1269610  1465907  1577928  1654517  1531781  1645012  1581414  1059464  852615 
"4096"   684844  1329422  1202919  1552097  1659601  852099  1666362  1080168  1065827  835442  805855 
"8192"   1160848  778853  1518138  1660628  1681761  1720670  1722827  1747092  795423  701551  596649  697067 
"16384"   1173231  1327712  1490667  1661021 

"Stride read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   1232453  1392258  1690338  1828508  1690338 
"128"   1622919  2066432  2132084  2367096  1471662  2035099 
"256"   1881098  2135500  2509882  2842047  2783115  2665657  2509882 
"512"   1968713  2347475  2739816  3086326  3239989  3201349  2875558  2391924 
"1024"   1868347  1925298  2522288  2908281  3447541  3469823  3294177  2798378  2102484 
"2048"   1647536  2027934  2364545  2662880  2753355  3429381  3567536  2083516  2094183  1318727 
"4096"   1222696  2027648  2195284  2493158  2658267  2622157  3605576  3589754  1961663  1150555  1174948 
"8192"   1593768  1705637  2204553  2184510  1939386  2394606  2485368  3693481  1950949  1122837  1120786  1130894 
"16384"   995201  1991937  2283812  2483195 

"Fwrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   681644  901377  969761  901377  809014 
"128"   864797  1007629  1076312  1303699  1172704  1142750 
"256"   927393  1032636  955451  1286217  1430119  1368162  1405778 
"512"   918982  1073309  1164070  1267097  1326585  1533034  1388334  1380303 
"1024"   897438  987392  1094034  1206178  1278338  1333093  1247519  1289467  490415 
"2048"   852954  977149  787647  970196  1056208  831165  1072829  1075515  1045919  845565 
"4096"   791195  739370  855664  955881  955190  983910  1051927  950592  840017  787857  700652 
"8192"   735033  757894  873719  912977  929123  945304  946606  793402  700350  770349  811810  792122 
"16384"   699756  816341  867289  0 

"Re-Fwrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   809014  969761  1163036  1526887  1029254 
"128"   776042  766076  1121270  1196221  1543594  1243315 
"256"   900936  891956  1112909  1168627  1407621  1924938  1340826 
"512"   891884  1013534  1086890  1204552  1233614  1484293  1861217  1261144 
"1024"   829175  930894  985580  1115632  1210257  1245710  1333507  1741104  1128826 
"2048"   827482  882847  1013345  1031724  1076728  1058942  1130283  995610  1332432  851263 
"4096"   783760  865623  917737  952383  970569  994216  1005152  933241  839155  1034632  807749 
"8192"   705715  758797  854490  896493  911548  931238  922215  862404  722666  769073  1054859  796271 
"16384"   729051  784900  864550  0 

"Fread report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   1330167  1518251  1722886  1780008  1879725 
"128"   1471662  1885042  2035099  2140585  1997245  2367096 
"256"   1952947  1924938  2205688  2325094  2247235  2533571  2588541 
"512"   1931527  2178404  2413429  2438090  2609952  2483197  2327124  2575520 
"1024"   1882266  2110750  2364021  2503178  2586074  2586074  2398343  2271501  2174880 
"2048"   1853353  2050198  2348384  2443928  2464968  2562778  2395538  2491420  1939560  1359854 
"4096"   1916795  2126799  2347359  2500415  2585847  2571141  2595614  2532855  1750403  1157376  1151480 
"8192"   1510596  2014311  2268597  2359417  2446960  2497472  2483931  2449751  1698890  1125117  1135415  1123902 
"16384"   1741152  2109395  2350042  0 

"Re-Fread report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   2358717  2772930  2892445  3203069  3203069 
"128"   2377579  2714132  2969325  3277486  3560017  3657016 
"256"   2463808  2350543  3159869  3368013  3410808  3654598  3717869 
"512"   2405320  2638816  3104171  3325278  3481620  3684733  3610395  3415178 
"1024"   2206161  2419964  2774874  3029305  3239514  3191372  3048658  3003881  2275110 
"2048"   1906837  2162727  2449504  2619037  2734946  2778290  2809182  2756005  1982533  1351084 
"4096"   1962560  2181070  2388479  2603876  2692851  2778652  2809093  2748864  1767875  1166967  1167681 
"8192"   1810808  1892701  2319283  2424513  2511345  2547278  2574379  2240053  1697128  1114859  1126666  1125891 
"16384"   1744822  2151800  2390840  0 

"Writer CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00  16.47   0.00   0.00   0.00
"128"     0.00   0.00  15.17   0.00   0.00   0.00
"256"    16.48   0.00   0.00   0.00  11.84   0.00  16.23
"512"    14.42  11.35   0.00  10.90   0.00   0.00   0.00   0.00
"1024"    17.52   0.00  15.69  21.95  21.49  20.49  21.64   0.00  14.08
"2048"    12.18   1.31  12.45  12.56   8.66  12.89  13.48  14.31   1.31  14.47
"4096"    21.11   1.35  17.66  16.77  19.57  15.82  15.86  18.65   2.11  16.93  22.02
"8192"     4.68  20.38   4.30  22.55  20.95  21.52  20.84   4.31  19.79  21.62  23.43  22.09
"16384"     4.84  25.79  27.04   2.42

"Re-writer CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00  19.45   0.00   0.00
"256"     0.00  13.34   0.00  15.10   0.00  24.59   0.00
"512"     0.00   0.00  13.51   0.00  16.56   0.00   0.00   0.00
"1024"     0.00  14.83   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"     6.99   5.36   0.00   5.07  10.29   5.15   0.00   6.01   5.49  12.23
"4096"     9.64   7.36   9.06   9.66   0.87   8.09  13.46   0.87  14.39  12.15   1.30
"8192"    13.44  13.14   9.54   2.04  12.72  12.88  12.38   1.60   2.04  12.83   2.45  14.78
"16384"    14.89   3.62   3.28   0.84

"Reader CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00  22.69   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00  43.32   0.00
"4096"    49.83  40.37  46.64  44.24  46.35  42.54   0.00  45.78  38.33  65.13  66.91
"8192"    33.95  20.31  39.72  35.32  37.55   0.00   0.00  37.00  42.69  81.05  73.95  74.50
"16384"    76.38  31.40  53.75  57.57

"Re-Reader CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00 100.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00 100.00 100.00   0.00 100.00   0.00   0.00
"2048"   100.00   0.00   0.00   0.00   0.00   0.00 100.00 100.00   0.00  60.57
"4096"   100.00   0.00   0.00   0.00   0.00   0.00 100.00 100.00  90.66  92.97  65.81
"8192"    70.30 100.00   0.00  85.75  88.60  86.37  87.78  83.96 100.00  89.34  94.49 100.00
"16384"    76.17  83.78  92.30  96.73

"Random read CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"   100.00   0.00   0.00 100.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00 100.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"     0.00 100.00 100.00 100.00   0.00   0.00   0.00   0.00   0.00 100.00
"4096"   100.00 100.00 100.00 100.00 100.00 100.00   0.00   0.00 100.00  73.22   0.00
"8192"   100.00  72.17  68.31  89.50  93.62  78.20  96.08  96.05  61.11  79.18  74.07 100.00
"16384"   100.00  78.17  84.89  95.32

"Random write CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00  15.43   0.00   0.00   0.00   0.00  15.11   0.00
"1024"     0.00  14.42   0.00   0.00   0.00   0.00   0.00  11.33   9.38
"2048"     0.00   0.00   5.13   0.00   0.00   5.51   5.75   6.54   6.38  11.94
"4096"     8.93   9.57   9.10   9.09   8.19   8.43   8.94   8.99   8.85  13.21  13.49
"8192"    12.94  13.13  10.43   9.19  10.27  11.13  10.24  10.48  12.70   2.01  11.72  12.10
"16384"    15.52   3.30   3.30   0.84

"Backward read CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"    53.58   0.00   0.00   0.00  60.85   0.00   0.00   0.00   0.00  46.49
"4096"    53.25  44.25  52.25   0.00   0.00   0.00  29.15  46.56  32.41  33.26  32.35
"8192"    34.61  18.25  63.65  40.61  37.56  37.73   0.00  38.01  23.31  60.69  76.75  69.91
"16384"    62.80  68.86  52.58  56.25

"Record rewrite CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00 100.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"   100.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00 100.00   0.00 100.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"   100.00   0.00   0.00 100.00   0.00 100.00   0.00   0.00   0.00   0.00
"4096"   100.00 100.00   0.00   0.00   0.00  69.27 100.00  87.71  86.64   0.00 100.00
"8192"    94.43  63.34   0.00  67.55 100.00 100.00   0.00 100.00  64.66 100.00  72.80  85.05
"16384"    95.46 100.00 100.00 100.00

"Stride read CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"4096"     0.00 100.00 100.00   0.00   0.00   0.00   0.00 100.00 100.00  93.73  95.67
"8192"   100.00 100.00 100.00 100.00  78.92  97.46 100.00 100.00   0.00  91.40  91.24  92.07
"16384"    60.74 100.00  92.93 100.00

"Fwrite CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"    30.33   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"    18.27   0.00   0.00   0.00   0.00  16.84   0.00  15.65
"1024"     0.00   0.00   0.00  15.63   0.00   0.00  14.92   0.00   0.00
"2048"     0.00  10.91   5.73   5.52  10.44   0.00   5.42  12.43  13.01  12.14
"4096"    13.84  12.77   9.17   9.64   0.88  13.15  14.37   9.06  13.18  17.25  13.78
"8192"    13.41  10.46   9.86   1.63   2.03  10.80  12.67   9.90  15.44  14.32   2.78   2.42
"16384"    15.02  13.17   5.38   0.00

"Re-Fwrite CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"    30.93   0.00  24.93   0.00   0.00
"128"     0.00  22.25   0.00   0.00   0.00   0.00
"256"     0.00  14.14   0.00  18.93   0.00  24.60   0.00
"512"     0.00  14.69   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00  14.68   0.00   0.00  15.25  15.12   0.00   0.00  11.75
"2048"    12.72   5.20   4.73   0.00   5.58   5.47   6.09   5.74   5.75   0.00
"4096"     8.87   9.37   8.96   9.05  13.25   8.39   7.93   8.99  13.93  13.57  12.98
"8192"     2.02  12.34  13.34  12.58  10.27   2.02  10.35  12.35  14.66  15.38  14.82  12.47
"16384"     3.69  14.97  13.87   0.00

"Fread CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00   0.00   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"   100.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00 100.00
"2048"     0.00   0.00   0.00   0.00   0.00 100.00   0.00   0.00   0.00 100.00
"4096"   100.00   0.00 100.00 100.00   0.00   0.00   0.00 100.00   0.00  74.63 100.00
"8192"    58.64 100.00  86.19  89.14  92.17  93.31  91.97  87.94  61.29  80.40  76.18 100.00
"16384"   100.00  83.08  91.77   0.00

"Re-Fread CPU utilization report (Zero values should be ignored)"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"     0.00   0.00   0.00   0.00   0.00
"128"     0.00   0.00  43.94   0.00   0.00   0.00
"256"     0.00   0.00   0.00   0.00   0.00   0.00   0.00
"512"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"1024"     0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00   0.00
"2048"     0.00  68.64   0.00  54.64   0.00   0.00   0.00  84.70   0.00  53.20
"4096"     0.00   0.00   0.00   0.00  53.79  22.66  54.58  48.96  54.70  34.83  36.29
"8192"    65.86  40.06  25.49  38.53  39.08  39.80  39.87  42.17  55.83  55.08  76.67  67.19
"16384"    48.52  50.24   1.40   0.00
exiting iozone

sh-4.2# 

Perhaps there is some graphing method for .xls?


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#48 2012-07-06 22:02:13

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Another test for throughput:

sh-4.2# iozone -i 0 -t 2
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Fri Jul  6 15:08:38 2012

	Command line used: iozone -i 0 -t 2
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
	Throughput test with 2 processes
	Each process writes a 512 Kbyte file in 4 Kbyte records

	Children see throughput for  2 initial writers 	=  307308.16 KB/sec
	Parent sees throughput for  2 initial writers 	=   24667.13 KB/sec
	Min throughput per process 			=   84965.38 KB/sec 
	Max throughput per process 			=  222342.78 KB/sec
	Avg throughput per process 			=  153654.08 KB/sec
	Min xfer 					=     340.00 KB

	Children see throughput for  2 rewriters 	=  231057.41 KB/sec
	Parent sees throughput for  2 rewriters 	=   25333.49 KB/sec
	Min throughput per process 			=  108594.63 KB/sec 
	Max throughput per process 			=  122462.78 KB/sec
	Avg throughput per process 			=  115528.71 KB/sec
	Min xfer 					=     460.00 KB



iozone test complete.
sh-4.2# 

Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

#49 2012-07-06 22:11:28

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

This data is provided by iozone showing thruput for all tests made in iozone on the three device raid0 maxcell CF cards:

sh-4.2# iozone -t 2
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.373 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.

	Run began: Fri Jul  6 15:17:48 2012

	Command line used: iozone -t 2
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
	Throughput test with 2 processes
	Each process writes a 512 Kbyte file in 4 Kbyte records

	Children see throughput for  2 initial writers 	=  236355.89 KB/sec
	Parent sees throughput for  2 initial writers 	=   18899.94 KB/sec
	Min throughput per process 			=  236355.89 KB/sec 
	Max throughput per process 			=  236355.89 KB/sec
	Avg throughput per process 			=  118177.95 KB/sec
	Min xfer 					=     512.00 KB

	Children see throughput for  2 rewriters 	=  760762.12 KB/sec
	Parent sees throughput for  2 rewriters 	=     714.14 KB/sec
	Min throughput per process 			=       0.00 KB/sec 
	Max throughput per process 			=  760762.12 KB/sec
	Avg throughput per process 			=  380381.06 KB/sec
	Min xfer 					=       0.00 KB

	Children see throughput for  2 readers 		= 1514653.00 KB/sec
	Parent sees throughput for  2 readers 		=   49883.70 KB/sec
	Min throughput per process 			=       0.00 KB/sec 
	Max throughput per process 			= 1514653.00 KB/sec
	Avg throughput per process 			=  757326.50 KB/sec
	Min xfer 					=       0.00 KB

	Children see throughput for 2 re-readers 	= 1700565.38 KB/sec
	Parent sees throughput for 2 re-readers 	=   60706.58 KB/sec
	Min throughput per process 			=       0.00 KB/sec 
	Max throughput per process 			= 1700565.38 KB/sec
	Avg throughput per process 			=  850282.69 KB/sec
	Min xfer 					=       0.00 KB

	Children see throughput for 2 reverse readers 	= 1383861.25 KB/sec
	Parent sees throughput for 2 reverse readers 	=  183642.84 KB/sec
	Min throughput per process 			=       0.00 KB/sec 
	Max throughput per process 			= 1383861.25 KB/sec
	Avg throughput per process 			=  691930.62 KB/sec
	Min xfer 					=       0.00 KB

	Children see throughput for 2 stride readers 	= 1580479.37 KB/sec
	Parent sees throughput for 2 stride readers 	=  351031.97 KB/sec
	Min throughput per process 			=   38639.25 KB/sec 
	Max throughput per process 			= 1541840.12 KB/sec
	Avg throughput per process 			=  790239.69 KB/sec
	Min xfer 					=      16.00 KB

	Children see throughput for 2 random readers 	= 2362458.12 KB/sec
	Parent sees throughput for 2 random readers 	=  744853.23 KB/sec
	Min throughput per process 			= 1082522.25 KB/sec 
	Max throughput per process 			= 1279935.88 KB/sec
	Avg throughput per process 			= 1181229.06 KB/sec
	Min xfer 					=     448.00 KB

	Children see throughput for 2 mixed workload 	= 1992680.00 KB/sec
	Parent sees throughput for 2 mixed workload 	=   32230.36 KB/sec
	Min throughput per process 			=  577819.25 KB/sec 
	Max throughput per process 			= 1414860.75 KB/sec
	Avg throughput per process 			=  996340.00 KB/sec
	Min xfer 					=     204.00 KB

	Children see throughput for 2 random writers 	= 1296789.44 KB/sec
	Parent sees throughput for 2 random writers 	=   28043.21 KB/sec
	Min throughput per process 			=  645509.19 KB/sec 
	Max throughput per process 			=  651280.25 KB/sec
	Avg throughput per process 			=  648394.72 KB/sec
	Min xfer 					=     504.00 KB



iozone test complete.
sh-4.2# 

Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

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#50 2012-07-09 13:36:59

lilsirecho
Veteran
Registered: 2003-10-24
Posts: 5,000

Re: Raid0 Btrfs grub boot experiments full size devices (See Edits)

Performed a transfer of a 1.1GB video file from /mnt to Desktop and it was timed at 19 seconds indicating about 57mb/s.


Sign of the times: Navajo blanket..made in China
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

Offline

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