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2022-01-26 - 12:42

(undisclosed), Linux 4.9.20-rt16 (Profile)

Latency plot of system in rack #7, slot #1
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
Characteristics of the 50 highest latencies:
System rack7slot1.osadl.org (updated Wed Jan 26, 2022 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22139212057,23sleep30-21swapper/319:07:373
22139212057,23sleep30-21swapper/319:07:373
21259211753,24sleep00-21swapper/019:05:380
21259211753,24sleep00-21swapper/019:05:380
22278211453,21sleep20-21swapper/219:09:212
22278211453,21sleep20-21swapper/219:09:212
2208429053,32sleep10-21swapper/119:06:591
2208429053,32sleep10-21swapper/119:06:591
22456994414,27cyclictest0-21swapper/300:29:003
22456994414,27cyclictest0-21swapper/300:29:003
47382393,20sleep114077-21stress22:00:011
2245699397,29cyclictest0-21swapper/323:46:543
2245699397,29cyclictest0-21swapper/323:46:533
298762385,13sleep30-21swapper/319:21:223
277642385,13sleep20-21swapper/220:28:252
239872384,13sleep20-21swapper/220:20:192
22456993810,25cyclictest0-21swapper/321:41:333
206522385,13sleep30-21swapper/320:12:183
142502385,13sleep30-21swapper/320:00:033
66872375,13sleep10-21swapper/120:50:381
323012375,13sleep30-21swapper/320:37:363
321862375,13sleep10-21swapper/120:36:141
302042375,12sleep10-21swapper/120:34:541
301822375,13sleep20-21swapper/220:34:392
275922375,13sleep30-21swapper/319:16:453
254602375,12sleep30-21swapper/320:24:093
25352375,14sleep00-21swapper/019:35:020
235402375,13sleep10-21swapper/120:20:101
23282375,13sleep10-21swapper/120:44:201
22456993714,21cyclictest0-21swapper/300:12:473
22455993715,19cyclictest0-21swapper/223:15:522
2245399376,29cyclictest0-21swapper/022:30:430
221882375,11sleep00-21swapper/020:15:280
161082374,13sleep20-21swapper/220:03:192
116792374,13sleep20-21swapper/219:55:012
112972375,13sleep00-21swapper/021:00:360
112972375,13sleep00-21swapper/021:00:350
92622365,12sleep30-21swapper/319:49:083
91292365,13sleep30-21swapper/320:57:173
46732365,12sleep20-21swapper/219:39:342
278522365,12sleep20-21swapper/219:19:482
2245699369,25cyclictest0-21swapper/323:27:393
22456993613,21cyclictest0-21swapper/323:33:013
22456993612,21cyclictest0-21swapper/322:45:323
22456993610,24cyclictest0-21swapper/321:52:323
22456993610,23cyclictest0-21swapper/322:50:163
2245599367,26cyclictest0-21swapper/221:34:152
2245599367,26cyclictest0-21swapper/221:34:142
22455993614,20cyclictest0-21swapper/222:05:262
162552365,13sleep00-21swapper/020:04:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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