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#1 2019-11-04 22:33:39

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Occasionally Arch boots and runs at about 1/4 speed

I apologize in advance, because I'm not getting an error, and I don't really know what information I can share here that will help the problem. I've been using arch over a year and have always been able to solve all my own problems, but I just don't have any idea where to even begin with this issue.

Sometimes, when I start my laptop, it just runs at around 1/4 of it's normal speed. When this happens, I just shut it down, and turn it back on again, and the laptop works normally. I don't understand why this is happening, I do not get errors, and nothing seems out of place, it's just everything runs slow until I reboot.

Thank you in advance for any help you are able to provide.

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#2 2019-11-04 22:41:23

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Do you have Windows as second OS installed? What is your hard disk drive(s)? Can you provide logs from your last boot or list of failed systemd services?

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#3 2019-11-04 22:46:08

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

No windows, it's just arch. When i enter systemctl list-units --state=failed i get 0 loaded units listed.

here are my drives

Disk model: WDC WD10SPZX-24Z
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: DFFC4C0F-7D1D-4F14-B10E-9A1BCC8974B9

Device       Start        End    Sectors   Size Type
/dev/sda1     2048    2099199    2097152     1G EFI System
/dev/sda2  2099200 1953525134 1951425935 930.5G Linux filesystem

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#4 2019-11-04 22:49:25

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Please provide output of smartctl -x /dev/sda

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#5 2019-11-04 22:58:20

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

=== START OF INFORMATION SECTION ===
Device Model:     WDC WD10SPZX-24Z10
Serial Number:    WD-WXS1A686A6RU
LU WWN Device Id: 5 0014ee 608d311fb
Firmware Version: 04.01A04
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Nov  4 17:50:18 2019 EST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     96 (intermediate level with standby)
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  ENABLED, PW level HIGH, not locked, frozen [SEC6]
Wt Cache Reorder: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		( 1140) seconds.
Offline data collection
capabilities: 			 (0x71) SMART execute Offline immediate.
					No Auto Offline data collection support.
					Suspend Offline collection upon new
					command.
					No Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (  24) minutes.
Conveyance self-test routine
recommended polling time: 	 (   3) minutes.
SCT capabilities: 	       (0x303d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR-K   200   200   051    -    0
  3 Spin_Up_Time            POS--K   194   193   021    -    1266
  4 Start_Stop_Count        -O--CK   098   098   000    -    2443
  5 Reallocated_Sector_Ct   PO--CK   200   200   140    -    0
  7 Seek_Error_Rate         -OSR-K   200   200   000    -    0
  9 Power_On_Hours          -O--CK   100   100   000    -    436
 10 Spin_Retry_Count        -O--CK   100   100   000    -    0
 11 Calibration_Retry_Count -O--CK   100   100   000    -    0
 12 Power_Cycle_Count       -O--CK   100   100   000    -    230
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   200   200   000    -    8
193 Load_Cycle_Count        -O--CK   192   192   000    -    24992
194 Temperature_Celsius     -O---K   113   093   000    -    30 (Min/Max 12/50)
196 Reallocated_Event_Count -O--CK   200   200   000    -    0
197 Current_Pending_Sector  -O--CK   200   200   000    -    0
198 Offline_Uncorrectable   ----CK   100   253   000    -    0
199 UDMA_CRC_Error_Count    -O--CK   200   200   000    -    0
200 Multi_Zone_Error_Rate   ---R--   100   253   000    -    0
206 Flying_Height           -O---K   100   000   000    -    36
240 Head_Flying_Hours       -O--CK   100   100   000    -    373
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      6  Ext. Comprehensive SMART error log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x24       GPL     R/O    288  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa0-0xa7  GPL,SL  VS      16  Device vendor specific log
0xa8-0xb6  GPL,SL  VS       1  Device vendor specific log
0xb7       GPL,SL  VS      74  Device vendor specific log
0xb9       GPL,SL  VS       4  Device vendor specific log
0xbd       GPL,SL  VS       1  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL     VS      93  Device vendor specific log
0xdf       GPL,SL  VS       1  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (6 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       258 (0x0102)
Device State:                        Active (0)
Current Temperature:                    30 Celsius
Power Cycle Min/Max Temperature:     23/31 Celsius
Lifetime    Min/Max Temperature:     12/50 Celsius
Specified Max Operating Temperature:    25 Celsius
Under/Over Temperature Limit Count:   0/0
Vendor specific:
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/60 Celsius
Min/Max Temperature Limit:           -41/85 Celsius
Temperature History Size (Index):    128 (10)

Index    Estimated Time   Temperature Celsius
  11    2019-11-04 15:43    33  **************
 ...    ..(  7 skipped).    ..  **************
  19    2019-11-04 15:51    33  **************
  20    2019-11-04 15:52    32  *************
  21    2019-11-04 15:53    32  *************
  22    2019-11-04 15:54    32  *************
  23    2019-11-04 15:55    34  ***************
  24    2019-11-04 15:56    33  **************
  25    2019-11-04 15:57    33  **************
  26    2019-11-04 15:58    34  ***************
 ...    ..(  2 skipped).    ..  ***************
  29    2019-11-04 16:01    34  ***************
  30    2019-11-04 16:02    33  **************
 ...    ..(  3 skipped).    ..  **************
  34    2019-11-04 16:06    33  **************
  35    2019-11-04 16:07    32  *************
 ...    ..(  5 skipped).    ..  *************
  41    2019-11-04 16:13    32  *************
  42    2019-11-04 16:14    31  ************
 ...    ..( 28 skipped).    ..  ************
  71    2019-11-04 16:43    31  ************
  72    2019-11-04 16:44    30  ***********
 ...    ..( 13 skipped).    ..  ***********
  86    2019-11-04 16:58    30  ***********
  87    2019-11-04 16:59     ?  -
  88    2019-11-04 17:00    18  -
  89    2019-11-04 17:01    18  -
  90    2019-11-04 17:02    19  -
  91    2019-11-04 17:03    19  -
  92    2019-11-04 17:04     ?  -
  93    2019-11-04 17:05    19  -
  94    2019-11-04 17:06    19  -
  95    2019-11-04 17:07    20  *
  96    2019-11-04 17:08    21  **
  97    2019-11-04 17:09     ?  -
  98    2019-11-04 17:10    23  ****
  99    2019-11-04 17:11    23  ****
 100    2019-11-04 17:12    24  *****
 101    2019-11-04 17:13    25  ******
 102    2019-11-04 17:14    26  *******
 103    2019-11-04 17:15    26  *******
 104    2019-11-04 17:16    27  ********
 ...    ..(  5 skipped).    ..  ********
 110    2019-11-04 17:22    27  ********
 111    2019-11-04 17:23    28  *********
 ...    ..(  2 skipped).    ..  *********
 114    2019-11-04 17:26    28  *********
 115    2019-11-04 17:27    29  **********
 116    2019-11-04 17:28    28  *********
 117    2019-11-04 17:29    29  **********
 118    2019-11-04 17:30    28  *********
 119    2019-11-04 17:31    29  **********
 120    2019-11-04 17:32    30  ***********
 121    2019-11-04 17:33    31  ************
 122    2019-11-04 17:34    31  ************
 123    2019-11-04 17:35    30  ***********
 124    2019-11-04 17:36    31  ************
 125    2019-11-04 17:37    30  ***********
 ...    ..( 12 skipped).    ..  ***********
  10    2019-11-04 17:50    30  ***********

SCT Error Recovery Control:
           Read:    150 (15.0 seconds)
          Write:    150 (15.0 seconds)

Device Statistics (GP/SMART Log 0x04) not supported

Pending Defects log (GP Log 0x0c) not supported

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  2            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  2            0  R_ERR response for non-data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS
0x0008  2            0  Device-to-host non-data FIS retries
0x0009  2            3  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2            5  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000d  2            0  Non-CRC errors within host-to-device FIS
0x000f  2            0  R_ERR response for host-to-device data FIS, CRC
0x0012  2            0  R_ERR response for host-to-device non-data FIS, CRC
0x8000  4         2482  Vendor specific

Last edited by ErtyJr (2019-11-04 22:59:33)

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#6 2019-11-04 23:02:30

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

HDD SMART info looks good. Could you please show output of systemd-analyze blame ?

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#7 2019-11-04 23:06:42

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

29.663s systemd-journal-flush.service                        
15.579s NetworkManager-wait-online.service                   
10.950s lvm2-monitor.service                                 
10.562s dev-sda2.device                                      
 4.666s systemd-udevd.service                                
 2.636s NetworkManager.service                               
 2.337s systemd-logind.service                               
 2.119s systemd-fsck@dev-disk-by\x2duuid-B4AB\x2d4239.service
 1.868s systemd-tmpfiles-setup.service                       
 1.732s systemd-tmpfiles-clean.service                       
 1.518s systemd-tmpfiles-setup-dev.service                   
  915ms swapfile.swap                                        
  824ms user@1000.service                                    
  773ms boot.mount                                           
  629ms systemd-random-seed.service                          
  478ms systemd-journald.service                             
  466ms systemd-udev-trigger.service                         
  466ms polkit.service                                       
  298ms systemd-sysctl.service                               
  216ms systemd-backlight@backlight:amdgpu_bl0.service       
  207ms sys-kernel-debug.mount                               
  207ms kmod-static-nodes.service                            
  180ms systemd-update-utmp.service                          
  172ms systemd-rfkill.service                               
  152ms wpa_supplicant.service                               
  102ms dev-hugepages.mount                                  
  100ms dev-mqueue.mount                                     
   47ms systemd-remount-fs.service                           
   44ms sys-kernel-config.mount

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#8 2019-11-04 23:09:36

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Is this list corresponds to the "slow" bootup? If yes, could you provide the same for "quick" boot? 30 seconds for journal flushing service seems too long...

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#9 2019-11-04 23:17:42

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

it's running normally at the moment, and i just put in the command. Actually I do believe I saw it hang on journal flushing service in the past. Is this something I could fix?

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#10 2019-11-04 23:22:10

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

journalctl --vacuum-time=2d
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@58285850efb1426abcc6a935eeb217c8-0000000000000001-00057d23dc992e51.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@f4ba38e1843642fd89075bd08c6a8381-00000000000004d6-00057d23de6e6320.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@000581ce361b6441-da514c5e53abef78.journal~: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@e27d47c187f24c579ee5332bf5fa8c09-0000000000016e9a-00057f88a5794b89.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@4df47d1ea58c45a695123afcf1185b44-0000000000000001-000581ce36118895.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@e27d47c187f24c579ee5332bf5fa8c09-0000000000021ceb-000581f58e2b31b8.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@4df47d1ea58c45a695123afcf1185b44-0000000000021cec-000581f58e3f180d.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@4df47d1ea58c45a695123afcf1185b44-0000000000023765-000588b4ed7eb28e.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@346ef7764b89493b83f963726085d96a-0000000000023964-000588b4f10a8f9b.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@4df47d1ea58c45a695123afcf1185b44-0000000000023d71-00058e4befaeb825.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@28a4672e91854ceb93ba793602ebaa2d-0000000000023f6f-00058e4bf3a2da68.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@000592601922c61d-534edee9fce3974f.journal~: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/user-1000@e9a2826fc3de42e08a240ce70139008b-000000000002b97d-000592384f69787a.journal: Permission denied
Failed to delete archived journal /var/log/journal/87054fed928a488fb02984fdf0ff436b/system@1be0c743e4044049ba8c504dd7dbf4c8-0000000000000001-00059260191691c1.journal: Permission denied

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#11 2019-11-04 23:24:51

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Delete journals by root/sudo. You can even try to specify vacuum size of 0 bytes.

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#12 2019-11-04 23:26:13

2ManyDogs
Forum Fellow
Registered: 2012-01-15
Posts: 4,645

Re: Occasionally Arch boots and runs at about 1/4 speed

Did you run that journalctl vacuum as root, or as your regular user?

(edit) too slow

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#13 2019-11-04 23:26:56

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

yea I realized that after I posted it lol. I'm going to try rebooting and see how my blame looks

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#14 2019-11-04 23:32:37

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

This is after my 2d vacuum. It's still very slow, I will also try 0 bytes but it seems like there is some problem with it


systemd-analyze blame
18.757s systemd-journal-flush.service                        
14.309s NetworkManager-wait-online.service                   
 8.611s lvm2-monitor.service                                 
 7.587s dev-sda2.device                                      
 3.719s ldconfig.service                                     
 2.927s NetworkManager.service                               
 2.634s systemd-logind.service                               
 2.343s systemd-udevd.service                                
 1.908s systemd-sysusers.service                             
 1.322s systemd-fsck@dev-disk-by\x2duuid-B4AB\x2d4239.service
 1.214s systemd-rfkill.service                               
 1.125s systemd-random-seed.service                          
 1.063s user@1000.service                                    
  946ms systemd-tmpfiles-setup.service                       
  805ms systemd-tmpfiles-setup-dev.service                   
  726ms swapfile.swap                                        
  583ms systemd-journald.service                             
  525ms boot.mount                                           
  515ms systemd-journal-catalog-update.service               
  491ms systemd-sysctl.service                               
  339ms systemd-udev-trigger.service                         
  261ms systemd-backlight@backlight:amdgpu_bl0.service       
  137ms dev-hugepages.mount                                  
  136ms dev-mqueue.mount                                     
  129ms systemd-remount-fs.service                           
  122ms kmod-static-nodes.service                            
  113ms systemd-update-done.service                          
  113ms systemd-update-utmp.service                          
  103ms systemd-user-sessions.service

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#15 2019-11-04 23:39:16

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

What file system do you use?

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#16 2019-11-04 23:43:23

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

ext4

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#17 2019-11-04 23:45:03

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

You could try to use e2defrag tool to check fragmentation of your hard drive and defragment it if necessary

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#18 2019-11-04 23:54:16

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

after running 

journalctl --rotate
journalctl --vacuum-time=1s

It is now starting up significantly faster. I am still unsure if the initial problem I had of the computer sometimes just running at 1/4 speed is solved, but at least now I know a few things to look at the next time it is running slowly. Thank you for all the help, will update if it runs slow again in the future.

will also look into defragging

13.035s NetworkManager-wait-online.service                   
 6.278s lvm2-monitor.service                                 
 5.989s dev-sda2.device                                      
 3.042s systemd-journal-flush.service                        
 2.272s NetworkManager.service                               
 2.213s systemd-logind.service                               
 1.832s systemd-tmpfiles-setup-dev.service                   
 1.686s systemd-udevd.service                                
  863ms swapfile.swap                                        
  829ms systemd-fsck@dev-disk-by\x2duuid-B4AB\x2d4239.service
  541ms systemd-random-seed.service                          
  492ms systemd-tmpfiles-setup.service                       
  474ms user@1000.service                                    
  472ms systemd-rfkill.service                               
  363ms systemd-journald.service                             
  349ms systemd-udev-trigger.service                         
  331ms systemd-sysctl.service                               
  296ms systemd-hostnamed.service                            
  159ms systemd-backlight@backlight:amdgpu_bl0.service       
  129ms boot.mount                                           
  114ms dev-hugepages.mount                                  
  114ms systemd-remount-fs.service                           
  114ms dev-mqueue.mount                                     
   99ms kmod-static-nodes.service                            
   97ms wpa_supplicant.service                               
   84ms systemd-update-utmp.service                          
   76ms sys-kernel-debug.mount                               
   30ms systemd-user-sessions.service                        
   26ms user-runtime-dir@1000.service

Last edited by ErtyJr (2019-11-04 23:54:34)

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#19 2019-11-05 09:20:39

seth
Member
Registered: 2012-09-03
Posts: 51,143

Re: Occasionally Arch boots and runs at about 1/4 speed

What exactly does "runs at around 1/4 of it's normal speed" mean? Did it only relate to the boot process or your desktop session?
In case of the latter, does it mean your GUI behaves like a diashow or would eg. 

time echo "scale=5000; a(1)*4" | bc -l

take 4 times as long? (nb. that depending on your CPU this command can take 30 seconds to finish anyway)?

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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#20 2019-11-05 22:36:30

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Also I've noticed that you use NetworkManager-wait-online. Are there any reasons to use this service? You could try to disable it and stay with simple NetworkManager.service unit. Perhaps waiting for ready-for-online state may cause such long bootups

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#21 2019-11-10 00:06:08

Neven
Member
Registered: 2014-05-02
Posts: 75

Re: Occasionally Arch boots and runs at about 1/4 speed

If everything runs at a quarter of the normal speed, that should mean the CPU is clocked slower than normal.

As a first step in troubleshooting, if your system happens to start running at a lower speed again post the output of 

dmesg -x

and read the files in /sys/devices/system/cpu/cpu0/cpufreq (this should be data for the first CPU core).

Other than that you could try cleaning the insides of your laptop from dust that possibly acts as a thermal/airflow insulator.

Last edited by Neven (2019-11-10 00:09:28)

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#22 2019-11-11 23:52:51

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

Hello again all. I have not been checking the forums since the computer seemed to be working fine for the time being. However, I just booted up extremly slow again. In the past I have always immediately rebooted the laptop because I3 takes forever to start up and then I can't do any thing at all for quite a while. Well this time I waited it out and I ran 

systemd-analyze blame

The results surprised me. my computer had already been running for some time, and the firs time I entered the command I got an error

systemd-analyze blame
Bootup is not yet finished (org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=0).
Please try again later.
Hint: Use 'systemctl list-jobs' to see active jobs

I waited around for a while, and then I tried again and here are the results. after running the results, my computer seems to now be running at a normal speed, so it appears the problem is only in boot up.

systemd-analyze blame
4min 3.590s fstrim.service                                       
1min 9.596s man-db.service                                       
    19.707s NetworkManager-wait-online.service                   
     6.359s lvm2-monitor.service                                 
     5.905s NetworkManager.service                               
     5.631s dev-sda2.device                                      
     5.531s systemd-logind.service                               
     4.245s logrotate.service                                    
     3.822s user@1000.service                                    
     3.380s systemd-journal-flush.service                        
     2.291s systemd-sysusers.service                             
     1.716s ldconfig.service                                     
     1.502s systemd-udevd.service                                
     1.273s systemd-random-seed.service                          
     1.087s swapfile.swap                                        
      991ms wpa_supplicant.service                               
      684ms systemd-fsck@dev-disk-by\x2duuid-B4AB\x2d4239.service
      482ms systemd-tmpfiles-setup.service                       
      385ms systemd-tmpfiles-setup-dev.service                   
      374ms systemd-journald.service                             
      311ms systemd-journal-catalog-update.service               
      311ms systemd-rfkill.service                               
      309ms user-runtime-dir@1000.service                        
      220ms boot.mount                                           
      208ms systemd-udev-trigger.service                         
      170ms sys-kernel-debug.mount                               
      164ms systemd-user-sessions.service                        
      157ms dev-hugepages.mount                                  
      154ms dev-mqueue.mount

So it appears that fstrim and man-db are the culprits.

dviktor wrote:

Also I've noticed that you use NetworkManager-wait-online. Are there any reasons to use this service? You could try to disable it and stay with simple NetworkManager.service unit. Perhaps waiting for ready-for-online state may cause such long bootups

thanks, I have taken your advice and disabled it, which should help.

Last edited by ErtyJr (2019-11-12 00:36:05)

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#23 2019-11-12 00:01:56

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

trying to delete this repost

Last edited by ErtyJr (2019-11-12 00:38:34)

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#24 2019-11-12 06:56:16

dviktor
Member
From: Moscow
Registered: 2015-10-18
Posts: 162

Re: Occasionally Arch boots and runs at about 1/4 speed

Do you have any SSDs installed? fstrim is necessary only for doing TRIM once a week for compatible devices so if you have none you could disable it too

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#25 2019-11-12 22:09:20

ErtyJr
Member
Registered: 2019-11-04
Posts: 16

Re: Occasionally Arch boots and runs at about 1/4 speed

dviktor wrote:

Do you have any SSDs installed? fstrim is necessary only for doing TRIM once a week for compatible devices so if you have none you could disable it too

I do not have an ssd on this particular device. I will disable it as well, thanks.

You have been a huge help dviktor, Just want to say I appreciate  your time.

Last edited by ErtyJr (2019-11-12 22:14:57)

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