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2025-05-03 - 01:31
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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 rack3slot6.osadl.org (updated Fri May 02, 2025 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1349821280,6chrt13497-21ntpq08:25:331
1756329722,28sleep00-21swapper/007:08:490
43342930,6chrt4337-21sed09:30:390
17855997524,19cyclictest14-21ksoftirqd/008:50:210
17855997418,42cyclictest14-21ksoftirqd/007:37:010
17861997142,17cyclictest26-21ksoftirqd/107:20:141
17855997121,19cyclictest14-21ksoftirqd/007:10:180
17861997042,16cyclictest26-21ksoftirqd/107:50:131
17855997036,13cyclictest14-21ksoftirqd/009:05:050
17855996920,19cyclictest14-21ksoftirqd/008:00:180
17855996917,29cyclictest14-21ksoftirqd/010:55:190
17855996917,27cyclictest2376-21ntpq09:25:310
17861996841,16cyclictest26-21ksoftirqd/112:05:121
17861996838,17cyclictest0-21swapper/112:20:131
1786199683,12cyclictest17867-21idleruntime-cro08:40:011
17861996811,52cyclictest36-21kcompactd012:10:221
17861996811,52cyclictest36-21kcompactd012:10:221
17861996739,19cyclictest29421-21seq07:40:151
17855996722,19cyclictest14-21ksoftirqd/009:15:330
1732726733,24sleep10-21swapper/107:06:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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