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2026-04-22 - 19:02
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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 Wed Apr 22, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212282990,0sleep721227-21systemd-cgroups11:10:137
179692730,2sleep5390699cyclictest11:54:485
253822710,1sleep125-21ksoftirqd/112:19:271
194702690,0sleep00-21swapper/009:57:330
83992670,1sleep6758-21runrttasks09:09:586
351925625,18sleep70-21swapper/707:07:337
49372550,3sleep7721ktimersoftd/709:17:447
122792540,0sleep70-21swapper/711:58:107
150122520,0sleep7721ktimersoftd/710:02:537
60302510,0sleep20-21swapper/211:40:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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