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2024-03-02 - 01:10
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack1slot8.osadl.org (updated Fri Mar 01, 2024 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139769919651865,86cyclictest0-21swapper/007:10:080
13731210311009,13sleep10-21swapper/107:07:551
1397699893814,39cyclictest1184-21snmpd09:14:000
1397799846788,40cyclictest0-21swapper/109:14:001
1397799480407,58cyclictest14120-21pgrep07:10:081
227799940,30rtkit-daemon1638-21munin-run10:20:010
239602880,14sleep11397799cyclictest10:55:351
134812870,4sleep113479-21ssh09:45:281
227799830,4rtkit-daemon2276-21rtkit-daemon12:11:381
227799830,4rtkit-daemon2276-21rtkit-daemon12:11:381
1397799825,56cyclictest0-21swapper/107:49:591
1397799815,55cyclictest0-21swapper/108:48:001
227799800,5rtkit-daemon2276-21rtkit-daemon11:59:231
227799800,4rtkit-daemon2276-21rtkit-daemon11:39:440
227799800,4rtkit-daemon2276-21rtkit-daemon10:05:101
227799790,4rtkit-daemon2276-21rtkit-daemon09:55:401
233102780,3sleep1251rcuc/109:05:021
227799780,4rtkit-daemon2276-21rtkit-daemon09:17:041
1397799785,66cyclictest0-21swapper/107:21:591
227799770,3rtkit-daemon2276-21rtkit-daemon08:06:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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