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2026-03-22 - 23:39
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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 Sun Mar 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2727623727,0sleep20-21swapper/207:17:312
2712423626,0sleep10-21swapper/107:15:461
2731823526,0sleep30-21swapper/307:18:003
2727923026,0sleep00-21swapper/007:17:330
27414991212,0cyclictest0-21swapper/009:19:330
29805070,0irq/28-eth0-rx-18651-21fschecks_time12:13:313
35160,0ktimersoftd/30-21swapper/312:03:443
339960,0migration/3981-21sh12:19:393
339960,0migration/330006-21irqrtprio11:23:343
339960,0migration/328635-21sh10:07:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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