Intel X25-M G2 - hdparm read speed, anyone else?

graysky · 2010-07-01 00:21:00

Just installed an 80 G version of the X25-M (G2). Seems nice an snappy. Here are a few benchmarks on my machine. Anyone else have this SSD and care to post?

# hdparm -Tt /dev/sdb
/dev/sdb:
 Timing cached reads:   15644 MB in  1.99 seconds = 7845.48 MB/sec
 Timing buffered disk reads:  788 MB in  3.00 seconds = 262.52 MB/sec

Here is the read-only benchmark from "Disk Utility 2.30.1" which is installed under Applications>System Tools>Disk Utility

Last edited by graysky (2010-07-17 09:53:17)

thepanu · 2010-07-01 09:36:27

Just ordered exact same disk as part of my new setup, once I get it up and running I try to remember to post about this. Do you (or anyone) know about similar tool for kde?

graysky · 2010-07-01 10:42:19

You can still use it for kde, pacman will just wanna pull some gtk deps down. Run it, then remove it along with its deps (pacman -Rs). Also check out the Solid_State_Drives_-_Best_Practices wiki article for some must have info before you use your SSD. You will love the X25-M. Access time is amazing. Boot speed is easily 3x quicker. On a fresh boot off my HDD, it would take 10-12 seconds for my Gnome desktop to display after logging in via gdm. Booting off the SDD and logging it is much faster; about 1 sec flat after entering my password.

You plan to simply "cp -a" your HDD based distro to the SSD, right? You need only do that, adjust the new /etc/fstab, chroot to the new root, and regenerate your kernel image via (mkinitcpio -g kernel26). Also adjust your menu.lst. Very easy.

Last edited by graysky (2010-07-01 10:47:36)

thepanu · 2010-07-01 13:53:38

Actually I was planning on doing completely fresh install, seems like safer option. Plus it doesn't harm to go trough installation again, I have so few problems with Arch that I forget how to do things

Thanks for the wiki link.

graysky · 2010-07-01 19:19:40

Safer, no? Theoretically, you will have the exact same files/dir structure.

Emeric · 2010-07-04 13:50:22

Hi!
I am using the same SSD since 2 month.
Very happy with it, the only thing still (very) slow in my system is gnome loading after login (with slim, gdm is so ugly and slow...)

# hdparm -Tt /dev/sda
/dev/sda:
 Timing cached reads:   6736 MB in  2.00 seconds = 3369.45 MB/sec
 Timing buffered disk reads:  744 MB in  3.01 seconds = 247.45 MB/sec

(hdparm was showing 270MB/sec 2 month ago)

RedShift · 2010-07-04 16:18:46

[root@polaris ~]# hdparm -t /dev/sda

/dev/sda:
Timing buffered disk reads: 676 MB in 3.00 seconds = 225.05 MB/sec

From dmesg: Model: INTEL SSDSA2M080 Rev: 2CV1

Fackamato · 2010-07-04 16:58:51

litemotiv · 2010-07-04 20:52:07

Timing cached reads: 1851 MB/sec
Timing buffered disk reads: 259,65 MB/sec

dunno why my cached reads are so low..

Nvidia MCP79 controller
Ext4
TRIM enabled
Alignment: 224/56 (Ted T'so)
INTEL SSDSA2M080G2GC, FwRev=2CV102HD

Last edited by litemotiv (2010-07-16 08:25:56)

Shapeshifter · 2010-07-15 23:50:32

Well that's a bit odd. My readings are much lower. Although the drive no doubt does feel snappy. What kind of mainboard chipsets do you have? I have the mobile ICH7 and as such am limited to SATA-1.5 although in practice this doesn't make a difference. And I wonder about these reads, really, because 941MB/s would very much exceed the 1.5 Gbit/s the controller is able to handle. So I doubt these values make much sense anyway, yours included. And do you have TRIM enabled? Well, make it a questionair, really:

Please post your...
- sata controller
- file system
- TRIM enabled?
- model and revision of SSD
- hdparm -Tt readings

Mine:
- Intel ICH7 mobile (1.5gbit/s)
- ext4 journaled
- TRIM enabled
- INTEL SSDSA2M080 2CV1
- hdparm -Tt readings:

[root@Tachychineta shapeshifter]# hdparm -Tt /dev/sda

/dev/sda:
 Timing cached reads:   1882 MB in  2.00 seconds = 941.40 MB/sec
 Timing buffered disk reads:  358 MB in  3.00 seconds = 119.32 MB/sec

Last edited by Shapeshifter (2010-07-15 23:55:15)

nicedream · 2010-07-17 02:09:50

Intel Corporation ICH9M/M-E
ext4 (journaled, noatime)
TRIM enabled
Model=INTEL SSDSA2M080G2GC, FwRev=2CV102HD

[root@arch ~]# hdparm -Tt /dev/sda

/dev/sda:
 Timing cached reads:   2722 MB in  2.00 seconds = 1361.90 MB/sec
 Timing buffered disk reads: 788 MB in  3.00 seconds = 262.31 MB/sec

I'm happy with my SSD, but I wish I knew why my cached reads are so much lower than most in this thread.

ozar · 2010-07-17 04:03:54

Mine is the OCZ Vertex 2 on ext4 with journaling still enabled:

Min Read Rate: 210.7 MB/s
Max Read Rate: 287.3 MB/s
Avg Read Rate: 284.1 MB/s
Avg Access Time: 0.1 ms

I'm not fond of the way SSDs seem to slow down even over a few days as you use them, though. Auto TRIM seems to be working properly and I can secure erase the device and get back to full speed, but that's more hassle than it's worth. If they can get TRIM working with RAID, it might all be worth while, even though the slow downs would continue to be troublesome.

thepanu · 2010-07-22 19:06:15

I got following results with same SSD as OP:

/dev/sda:
 Timing cached reads:   17956 MB in  2.00 seconds = 8989.16 MB/sec
 Timing buffered disk reads:  682 MB in  3.00 seconds = 227.08 MB/sec

Strangely cached reads was faster but buffered reads was a lot slower.

edit: added Disk Util Benchmark

Last edited by thepanu (2010-07-22 20:17:59)

Arch Linux

#1 2010-07-01 00:21:00

Intel X25-M G2 - hdparm read speed, anyone else?

#2 2010-07-01 09:36:27

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#3 2010-07-01 10:42:19

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#4 2010-07-01 13:53:38

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#5 2010-07-01 19:19:40

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#6 2010-07-04 13:50:22

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#7 2010-07-04 16:18:46

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#8 2010-07-04 16:58:51

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#9 2010-07-04 20:52:07

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#10 2010-07-15 23:50:32

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#11 2010-07-17 02:09:50

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#12 2010-07-17 04:03:54

Re: Intel X25-M G2 - hdparm read speed, anyone else?

#13 2010-07-22 19:06:15

Re: Intel X25-M G2 - hdparm read speed, anyone else?

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