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2025-11-06 - 10:24
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Thu Nov 06, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43872285248,22sleep10-21swapper/119:08:111
42262279247,20sleep00-21swapper/019:06:050
44192270237,21sleep30-21swapper/319:08:373
43462264229,22sleep20-21swapper/219:07:412
285062630,0sleep00-21swapper/023:45:510
272402540,0sleep10-21swapper/122:38:211
177572230,5sleep228-21ksoftirqd/219:35:152
60202150,0sleep10-21swapper/123:53:341
58352150,0sleep30-21swapper/323:08:223
55422130,0sleep20-21swapper/221:39:322
168542130,0sleep10-21swapper/122:30:281
4629991211,1cyclictest34-21ksoftirqd/322:50:013
280582120,0sleep20-21swapper/200:36:032
244222120,0sleep30-21swapper/300:33:243
462999119,2cyclictest34-21ksoftirqd/321:50:013
462999119,2cyclictest34-21ksoftirqd/321:50:013
126332110,0sleep10-21swapper/123:13:011
462999109,1cyclictest34-21ksoftirqd/300:00:013
462999108,1cyclictest34-21ksoftirqd/319:15:013
462999103,5cyclictest34-21ksoftirqd/321:36:343
46299998,1cyclictest34-21ksoftirqd/319:35:013
46299998,1cyclictest34-21ksoftirqd/300:25:003
46299997,2cyclictest34-21ksoftirqd/322:15:013
46299993,4cyclictest34-21ksoftirqd/322:27:253
46299993,4cyclictest34-21ksoftirqd/321:29:333
46299993,4cyclictest24187-21ssh22:58:423
46299992,5cyclictest34-21ksoftirqd/323:49:473
46299992,4cyclictest34-21ksoftirqd/322:44:583
46299992,3cyclictest34-21ksoftirqd/321:53:163
46299991,5cyclictest34-21ksoftirqd/322:30:083
46229994,3cyclictest19982-21systemd-journal23:40:531
46229994,3cyclictest19982-21systemd-journal23:40:531
46299987,1cyclictest34-21ksoftirqd/322:00:023
46299987,1cyclictest34-21ksoftirqd/322:00:013
46299986,1cyclictest331rcuc/323:15:163
46299986,1cyclictest0-21swapper/321:40:143
46299983,3cyclictest19982-21systemd-journal20:46:383
46299982,4cyclictest34-21ksoftirqd/323:41:533
46299982,4cyclictest34-21ksoftirqd/323:41:533
46299982,4cyclictest34-21ksoftirqd/323:35:453
46299982,4cyclictest34-21ksoftirqd/323:33:253
46299982,4cyclictest34-21ksoftirqd/323:20:053
46299982,4cyclictest34-21ksoftirqd/323:13:553
46299982,4cyclictest34-21ksoftirqd/322:05:243
46299982,4cyclictest34-21ksoftirqd/321:23:283
46299982,4cyclictest34-21ksoftirqd/320:55:133
46299982,4cyclictest34-21ksoftirqd/319:50:163
46299982,4cyclictest34-21ksoftirqd/300:35:123
46299982,4cyclictest34-21ksoftirqd/300:17:593
46299982,4cyclictest34-21ksoftirqd/300:03:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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