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2024-04-27 - 06:52
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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 rackdslot0.osadl.org (updated Sat Apr 27, 2024 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
850499454451,3cyclictest4272-21kworker/1:200:06:021
850499449448,1cyclictest0-21swapper/119:18:021
850499443443,0cyclictest0-21swapper/121:21:011
850499443441,0cyclictest0-21swapper/123:29:021
850499443441,0cyclictest0-21swapper/120:17:031
850499441439,0cyclictest0-21swapper/119:13:031
850499441439,0cyclictest0-21swapper/119:13:031
850499441439,0cyclictest0-21swapper/100:33:011
850499434434,0cyclictest0-21swapper/121:26:011
850499429427,1cyclictest4272-21kworker/1:223:38:021
849999370360,1cyclictest0-21swapper/021:21:020
849999369367,0cyclictest0-21swapper/023:34:010
849999357356,1cyclictest27619-21kworker/0:100:33:020
850899325323,2cyclictest0-21swapper/222:25:022
850899311297,14cyclictest22434-21kworker/2:020:54:022
850899310308,2cyclictest0-21swapper/200:06:022
850899310304,5cyclictest20271-21gnome-shell19:42:592
849999309303,5cyclictest20271-21gnome-shell21:39:590
850899306300,5cyclictest20271-21gnome-shell23:40:592
850899305300,4cyclictest20271-21gnome-shell00:23:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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