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2026-04-05 - 00:23
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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 10 highest latencies:
System rack1slot2.osadl.org (updated Sat Apr 04, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2767124939,0sleep10-21swapper/107:17:511
2750224435,0sleep20-21swapper/207:15:522
2773622824,0sleep00-21swapper/007:18:340
2741622723,0sleep30-21swapper/307:14:533
339970,0migration/36595-21sh11:44:583
8305060,0irq/26-0000:00:23097-21proc_pri10:39:422
339960,0migration/39954-21sh12:08:023
339960,0migration/38889-21sh09:36:533
339960,0migration/331656-21sh10:29:163
339960,0migration/325505-21sh10:44:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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