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2023-12-04 - 03:35
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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 20 highest latencies:
System rack0slot0.osadl.org (updated Mon Dec 04, 2023 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1635921530,1sleep116358-21bash22:52:201
1832521350,4sleep12302799cyclictest23:19:051
2064721280,3sleep22303699cyclictest22:52:302
1715521270,2sleep617149-21sshd21:31:056
278512930,1sleep40-21swapper/421:12:374
242072930,4sleep42304899cyclictest23:08:104
275602920,0sleep50-21swapper/521:23:435
275602920,0sleep50-21swapper/521:23:435
90372900,0sleep60-21swapper/600:23:326
48212900,1sleep5711-21systemd-logind21:15:105
48212900,1sleep5711-21systemd-logind21:15:095
34582890,1sleep23460-21grepconf.sh23:18:352
317282890,1sleep10-21swapper/122:17:171
306882890,0sleep130683-21bash23:43:591
99452880,2sleep70-21swapper/721:11:597
45962870,0sleep50-21swapper/521:45:085
269712870,1sleep126970-21sshd22:49:241
208322870,4sleep12302799cyclictest22:30:171
38962860,0sleep50-21swapper/523:08:355
265022860,4sleep12302799cyclictest21:42:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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