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2024-11-22 - 17:16
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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 rackfslot7.osadl.org (updated Fri Nov 22, 2024 12:46:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191762999494,0cyclictest351127-21ntpq11:55:190
191769997333,19cyclictest281786-21seq09:50:447
191762997234,19cyclictest678-21dbus-daemon09:30:000
19176299668,19cyclictest0-21swapper/010:25:190
191769996022,19cyclictest682-21polkitd10:40:277
19176299602,19cyclictest0-21swapper/012:09:470
191769995818,19cyclictest8550ktimers/710:22:157
191769995618,19cyclictest851ktimers/712:37:257
19176999550,35cyclictest0-21swapper/709:26:377
191769995416,19cyclictest329928-21munin-run11:20:017
191769995314,18cyclictest0-21swapper/708:36:567
191769995314,18cyclictest0-21swapper/708:36:557
191769995313,19cyclictest0-21swapper/712:12:147
191762995335,18cyclictest342501-21meminfo11:40:190
191762995335,18cyclictest319479-21df11:00:130
191762995314,39cyclictest0-21swapper/010:31:420
191762995314,39cyclictest0-21swapper/009:47:350
191762995314,20cyclictest363455-21systemd-run12:20:010
191769995212,19cyclictest0-21swapper/710:47:027
191765995214,19cyclictest0-21swapper/309:30:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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