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2026-08-13 - 12:44
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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
Characteristics of the 20 highest latencies:
System rackdslot0.osadl.org (updated Thu Aug 13, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2105499350,35cyclictest0-21swapper/121:14:561
2105499230,22cyclictest0-21swapper/121:31:261
2104999222,13cyclictest19633-21munin-plugin-st22:00:000
21058992116,4cyclictest0-21swapper/200:32:302
2105499212,18cyclictest0-21swapper/123:55:291
21054992117,1cyclictest0-21swapper/100:17:481
2105499210,20cyclictest870-21systemd-logind20:56:521
2105899204,15cyclictest0-21swapper/222:17:442
2105499204,11cyclictest0-21swapper/100:00:151
2105499202,3cyclictest17021-21grep20:00:131
21054992017,2cyclictest21-21ksoftirqd/120:35:111
21049992018,1cyclictest0-21swapper/000:25:000
2105899193,15cyclictest23464-21wc20:10:152
21058991917,1cyclictest0-21swapper/222:58:522
21058991916,2cyclictest23521-21chrt23:55:422
21058991914,1cyclictest0-21swapper/223:54:422
2105899190,1cyclictest0-21swapper/223:05:162
2105899190,18cyclictest0-21swapper/223:36:162
21054991918,1cyclictest28056-21tr23:10:121
21054991917,1cyclictest0-21swapper/100:20:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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