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2026-07-07 - 05:00
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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 Tue Jul 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271730,0ktimersoftd/2780-21perf19:26:512
784824938,0sleep00-21swapper/019:24:510
766724435,0sleep10-21swapper/119:22:441
790423929,0sleep30-21swapper/319:25:343
80999977,0cyclictest24650-21sensors22:07:242
80999960,0cyclictest0-21swapper/221:02:172
80969960,0cyclictest0-21swapper/121:27:211
80949965,0cyclictest14682-21munin-run23:57:030
80949960,0cyclictest0-21swapper/023:49:130
80949960,0cyclictest0-21swapper/023:35:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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