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2025-12-18 - 05:49
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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 rack2slot0.osadl.org (updated Thu Dec 18, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100142960,1sleep341-21ksoftirqd/300:23:533
122732910,0sleep112274-21sshd21:13:221
59182810,0sleep35920-21grepconf.sh22:12:403
316462710,0sleep2311rcuc/222:49:082
199352580,1sleep119934-21bash23:55:231
199352580,1sleep119934-21bash23:55:231
176842550,1sleep10-21swapper/121:39:421
71132540,0sleep3391rcuc/323:22:013
286792540,0sleep20-21swapper/200:07:592
173832530,0sleep20-21swapper/222:36:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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