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2024-04-27 - 04:24
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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 rackcslot6.osadl.org (updated Fri Apr 26, 2024 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105183321490,0sleep41051834-21/usr/sbin/munin22:45:234
97983421430,0sleep40-21swapper/421:45:314
8622512129112,2sleep40-21swapper/419:05:114
863305211092,16sleep20-21swapper/219:05:172
862753210284,2sleep60-21swapper/619:05:136
86248729576,17sleep50-21swapper/519:05:115
86472329456,12sleep00-21swapper/019:09:570
11061632930,1sleep010-21ksoftirqd/023:30:200
11061632930,1sleep010-21ksoftirqd/023:30:190
864932998817,38cyclictest0-21swapper/321:23:163
864932998516,36cyclictest0-21swapper/319:53:173
86460728466,12sleep10-21swapper/119:08:211
864932998316,35cyclictest0-21swapper/300:13:163
864913998317,36cyclictest0-21swapper/119:28:171
864913998317,35cyclictest0-21swapper/119:38:171
864913998216,35cyclictest0-21swapper/120:48:171
864913998216,35cyclictest0-21swapper/120:48:171
864940998117,34cyclictest0-21swapper/400:28:164
864940998116,35cyclictest0-21swapper/421:58:164
86444228057,11sleep70-21swapper/719:06:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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