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2022-06-27 - 17:56

x86 Intel Celeron G1620 @2700 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of system in rack #9, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack9slot5.osadl.org (updated Mon Jun 27, 2022 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232482980,0sleep023246-21x2golistsession12:07:180
322232960,0sleep032221-21x2gosqlitewrapp07:21:200
186692670,1sleep118632-21idleruntime-cro07:48:091
20652490,0sleep00-21swapper/011:04:020
70482480,0sleep10-21swapper/111:31:371
39252480,0sleep00-21swapper/010:42:580
44182460,0sleep00-21swapper/010:19:120
292182450,2sleep035699cyclictest10:13:350
201122440,0sleep00-21swapper/009:44:270
272362410,0sleep00-21swapper/010:58:510
3231522316,4sleep00-21swapper/006:37:140
3151122215,4sleep10-21swapper/106:34:561
264599160,1rtkit-daemon2644-21rtkit-daemon11:49:111
178072160,0sleep017808-21readlink08:30:140
35799150,14cyclictest32250-21x2golistsession11:26:271
300632150,0sleep030062-21seq09:52:080
264599150,1rtkit-daemon2644-21rtkit-daemon11:30:460
264599150,1rtkit-daemon2644-21rtkit-daemon09:23:051
357991413,1cyclictest4380-21ssh11:06:171
357991412,1cyclictest2196-21x2gosqlitewrapp10:41:171
357991412,1cyclictest14537-21x2gosqlitewrapp12:00:371
35699140,13cyclictest0-21swapper/010:26:370
327152140,1sleep121-21ksoftirqd/108:07:081
264599140,1rtkit-daemon2644-21rtkit-daemon08:07:550
264599140,1rtkit-daemon2644-21rtkit-daemon07:18:321
357991313,0cyclictest0-21swapper/108:48:361
357991313,0cyclictest0-21swapper/106:52:261
35799130,13cyclictest0-21swapper/109:18:071
357991212,0cyclictest0-21swapper/110:45:071
357991212,0cyclictest0-21swapper/110:33:371
357991212,0cyclictest0-21swapper/108:45:361
357991212,0cyclictest0-21swapper/108:19:161
35799120,12cyclictest0-21swapper/110:57:471
35799120,12cyclictest0-21swapper/107:59:561
35699120,1cyclictest1216-21ssh08:45:260
249172120,0sleep10-21swapper/108:38:451
357991111,0cyclictest0-21swapper/111:39:171
357991111,0cyclictest0-21swapper/110:29:471
357991111,0cyclictest0-21swapper/110:25:571
357991111,0cyclictest0-21swapper/109:24:371
357991111,0cyclictest0-21swapper/109:08:571
357991111,0cyclictest0-21swapper/108:24:161
357991111,0cyclictest0-21swapper/107:14:161
357991110,1cyclictest0-21swapper/108:38:061
264599110,1rtkit-daemon1561-21sendmail-mta06:57:570
56832100,0sleep00-21swapper/009:34:010
357991010,0cyclictest0-21swapper/109:59:071
357991010,0cyclictest0-21swapper/107:50:361
357991010,0cyclictest0-21swapper/107:42:461
357991010,0cyclictest0-21swapper/107:42:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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