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2024-05-25 - 08:04
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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 Sat May 25, 2024 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188762910,1sleep318875-21bash21:39:533
218642680,7sleep03-21ksoftirqd/021:22:150
181832670,0sleep318184-21sshd22:40:313
166302630,0sleep116578-21sshd21:24:491
214132610,0sleep3381ktimersoftd/323:26:183
105032600,0sleep30-21swapper/300:31:093
83132590,0sleep20-21swapper/222:57:532
47152590,0sleep24704-21bash21:35:272
297292580,1sleep30-21swapper/323:54:273
211012570,1sleep220208-21munin-node20:15:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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