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2025-10-28 - 10:42
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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 rackaslot0.osadl.org (updated Tue Oct 28, 2025 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3259821000,0sleep20-21swapper/223:11:242
123012930,1sleep113454-21diskmemload21:52:041
246682920,0sleep224669-21sshd21:45:442
310172630,6sleep121-21ksoftirqd/121:19:391
250792630,4sleep230-21ksoftirqd/223:52:432
196702600,1sleep10-21swapper/121:22:031
170142600,0sleep20-21swapper/223:28:562
170052600,1sleep116994-21sshd21:29:281
35812570,0sleep13579-21sshd23:23:251
250272560,1sleep225026-21sshd00:20:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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