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2023-12-10 - 08:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack1slot3.osadl.org (updated Tue Oct 10, 2023 10:56:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121398540,15rtkit-daemon400614-21irqstats07:25:291
4539852470,7chrt453988-21unixbench_singl09:45:432
121398470,21rtkit-daemon1-21systemd10:19:541
393979994435,3cyclictest0-21swapper/309:15:013
393979994334,3cyclictest0-21swapper/310:31:323
121398430,8rtkit-daemon1-21systemd09:49:311
121398430,4rtkit-daemon0-21swapper/107:20:301
121398430,16rtkit-daemon404640-21ps07:35:331
39397999423,34cyclictest452525-21turbostat09:49:563
39397999422,35cyclictest425858-21turbostat08:39:563
39397999422,34cyclictest414775-21turbostat08:09:553
39397999413,32cyclictest424013-21turbostat08:34:563
39397999409,24cyclictest420306-21turbostat08:24:563
39397999402,33cyclictest468096-21turbostat10:29:563
39397999402,31cyclictest460702-21turbostat10:09:563
393979993930,4cyclictest0-21swapper/309:35:253
39397999392,33cyclictest437215-21turbostat09:09:563
393979993916,16cyclictest4146002sleep308:03:083
39397999383,29cyclictest466230-21turbostat10:24:553
39397999383,29cyclictest395729-21turbostat07:19:553
393979993828,4cyclictest0-21swapper/309:26:383
39397999382,32cyclictest411070-21turbostat07:59:553
393979993812,22cyclictest393834-21turbostat07:14:553
121398380,13rtkit-daemon1-21systemd08:22:541
121398380,10rtkit-daemon1-21systemd09:10:191
393979993729,3cyclictest0-21swapper/307:26:313
393979993728,4cyclictest0-21swapper/310:49:413
393979993728,3cyclictest0-21swapper/307:30:313
121398370,15rtkit-daemon1-21systemd08:29:051
393979993627,3cyclictest0-21swapper/308:56:313
393979993627,3cyclictest0-21swapper/308:17:313
393979993626,4cyclictest0-21swapper/307:52:313
121398360,21rtkit-daemon1-21systemd07:08:221
121398360,15rtkit-daemon280-21plymouthd10:40:251
121398360,10rtkit-daemon1-21systemd08:48:411
393979993526,4cyclictest0-21swapper/308:26:313
393979993526,3cyclictest0-21swapper/310:14:363
393979993526,3cyclictest0-21swapper/309:31:323
393979993525,4cyclictest0-21swapper/308:14:563
393979993514,15cyclictest4739822sleep310:40:253
393979993511,16cyclictest4313852sleep308:46:473
121398350,7rtkit-daemon280-21plymouthd09:29:021
393979993426,4cyclictest0-21swapper/310:50:343
393979993426,3cyclictest0-21swapper/310:35:383
393979993425,3cyclictest0-21swapper/309:59:563
393979993425,3cyclictest0-21swapper/307:36:313
393979993424,4cyclictest0-21swapper/309:51:323
393979993424,3cyclictest0-21swapper/307:22:313
39397999342,26cyclictest431666-21turbostat08:54:553
393979993415,14cyclictest4417282sleep309:15:343
121398340,8rtkit-daemon1-21systemd09:09:171
4594672330,6sleep1301rcuc/110:00:251
393979993325,3cyclictest0-21swapper/310:15:253
393979993325,3cyclictest0-21swapper/309:40:403
393979993325,3cyclictest0-21swapper/309:22:333
393979993325,3cyclictest0-21swapper/309:22:333
121398330,9rtkit-daemon1-21systemd10:36:471
121398330,18rtkit-daemon1-21systemd08:16:150
393979993223,4cyclictest0-21swapper/307:45:173
393979993223,3cyclictest0-21swapper/310:04:313
393979993222,4cyclictest0-21swapper/308:43:153
3921972322,6sleep30-21swapper/307:05:033
121398320,9rtkit-daemon1-21systemd10:27:291
121398320,9rtkit-daemon1-21systemd07:34:361
121398320,9rtkit-daemon1-21systemd07:12:091
121398320,8rtkit-daemon1-21systemd10:12:522
121398320,8rtkit-daemon1-21systemd09:41:141
121398320,8rtkit-daemon1-21systemd07:50:461
121398320,17rtkit-daemon1-21systemd08:58:351
121398320,16rtkit-daemon280-21plymouthd10:07:092
121398310,8rtkit-daemon1-21systemd10:22:541
121398310,8rtkit-daemon1-21systemd09:59:462
121398310,8rtkit-daemon1-21systemd07:40:421
121398310,6rtkit-daemon280-21plymouthd10:50:391
121398310,17rtkit-daemon1-21systemd09:04:111
121398300,9rtkit-daemon1-21systemd09:53:381
121398300,9rtkit-daemon1-21systemd09:32:521
121398300,9rtkit-daemon1-21systemd08:54:121
121398300,8rtkit-daemon1-21systemd08:40:171
121398300,17rtkit-daemon411071-21perf07:59:501
121398300,15rtkit-daemon1-21systemd07:45:431
4227132296,6sleep2171rcu_preempt08:26:152
4118022294,9sleep2411870-21missed_timers07:55:332
393979992921,3cyclictest0-21swapper/307:40:313
121398290,9rtkit-daemon1-21systemd08:00:091
121398290,8rtkit-daemon1-21systemd09:35:441
121398290,8rtkit-daemon1-21systemd08:36:471
121398290,16rtkit-daemon1-21systemd07:15:551
121398290,14rtkit-daemon1-21systemd09:23:201
121398290,14rtkit-daemon1-21systemd09:23:201
393979992810,13cyclictest4369972sleep309:02:353
121398280,8rtkit-daemon1-21systemd10:16:572
121398280,8rtkit-daemon1-21systemd08:09:231
121398280,5rtkit-daemon0-21swapper/108:34:131
4413002273,7sleep0441355-21grep09:15:260
4342342273,16sleep0434241-21irqstats08:55:320
121398270,6rtkit-daemon280-21plymouthd09:19:251
121398270,4rtkit-daemon0-21swapper/108:11:541
121398270,13rtkit-daemon1217-21sendmail-mta10:33:321
4463522262,11sleep00-21swapper/009:29:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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