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2023-10-05 - 04:07
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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 rack1slot1.osadl.org (updated Thu Oct 05, 2023 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309362202164,25sleep30-21swapper/319:08:493
289222202162,27sleep20-21swapper/219:05:102
307852201164,24sleep10-21swapper/119:06:491
307552198160,25sleep00-21swapper/019:06:280
3113499160,0cyclictest0-21swapper/222:12:502
31141991412,1cyclictest35-21ksoftirqd/319:24:593
3113499140,0cyclictest0-21swapper/200:12:022
31134991311,1cyclictest28-21ksoftirqd/223:55:002
31121991312,1cyclictest9-21ksoftirqd/000:20:010
3112199130,6cyclictest24165-21diskmemload21:46:020
31134991210,1cyclictest28-21ksoftirqd/219:40:002
3113499120,12cyclictest0-21swapper/221:51:352
3114199110,8cyclictest24165-21diskmemload22:58:153
31134991110,1cyclictest28-21ksoftirqd/220:55:002
31134991110,1cyclictest28-21ksoftirqd/200:39:592
31134991110,1cyclictest15486-21/usr/sbin/munin21:35:262
3113499110,6cyclictest22048-21apt-get21:05:202
3113499110,11cyclictest0-21swapper/221:17:382
31121991110,1cyclictest9-21ksoftirqd/020:10:000
3113499108,1cyclictest28-21ksoftirqd/220:09:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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