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2026-09-05 - 09:11
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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 10 highest latencies:
System rackcslot4.osadl.org (updated Sat Sep 05, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25116932285223,48sleep10-21swapper/119:08:111
25114642270211,44sleep00-21swapper/019:05:430
25203232640,11sleep126-21ksoftirqd/119:25:241
251199499563,7cyclictest2662708-21apt-get23:35:131
251199499542,6cyclictest2702518-21apt-get00:35:121
136599520,4rtkit-daemon1364-21rtkit-daemon22:15:471
251199499512,6cyclictest2699064-21apt-get00:30:121
251199499512,6cyclictest2676549-21apt-get23:55:131
136599510,4rtkit-daemon1364-21rtkit-daemon21:26:311
251199499503,5cyclictest2574809-21apt-get21:30:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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