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2025-04-02 - 04:19
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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 Wed Apr 02, 2025 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151662214149,23sleep00-21swapper/019:09:050
151272201165,22sleep10-21swapper/119:08:351
151732200161,26sleep20-21swapper/219:09:112
151292197160,24sleep30-21swapper/319:08:363
275562700,0sleep10-21swapper/123:55:181
34792150,0sleep20-21swapper/200:08:572
15343991515,0cyclictest35-21ksoftirqd/300:20:123
15336991515,0cyclictest28-21ksoftirqd/222:40:282
15343991414,0cyclictest0-21swapper/323:59:343
15336991412,1cyclictest28-21ksoftirqd/219:15:012
15336991313,0cyclictest0-21swapper/223:10:072
15336991311,1cyclictest28-21ksoftirqd/223:55:002
15343991211,1cyclictest35-21ksoftirqd/323:35:003
15343991211,1cyclictest35-21ksoftirqd/321:50:153
15336991210,1cyclictest28-21ksoftirqd/223:55:132
15336991210,1cyclictest28-21ksoftirqd/219:25:002
15336991210,1cyclictest28-21ksoftirqd/200:30:172
15333991212,0cyclictest0-21swapper/123:10:081
1533299121,6cyclictest26410-21apt-get23:55:130
1534399119,1cyclictest35-21ksoftirqd/322:25:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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