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2026-03-14 - 09:13
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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 rack3slot0.osadl.org (updated Sat Mar 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226332910,0sleep20-21swapper/200:23:592
255532900,0sleep40-21swapper/422:55:194
279632780,0sleep0111rcuc/023:49:050
206622540,2sleep71147599cyclictest22:34:407
112502520,0sleep0101ktimersoftd/000:30:460
326692510,0sleep20-21swapper/223:58:362
96052500,1sleep29597-21sshd22:32:102
297232500,1sleep09-21ksoftirqd/023:10:210
203502500,0sleep30-21swapper/322:05:043
231142490,0sleep00-21swapper/022:44:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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