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2026-07-08 - 07:05
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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 Wed Jul 08, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
621124132,0sleep30-21swapper/319:25:303
624123928,0sleep00-21swapper/019:25:510
606023827,0sleep20-21swapper/219:23:452
617923724,0sleep10-21swapper/119:25:041
8305070,0irq/26-0000:00:15033-21munin-run21:47:082
8305060,0irq/26-0000:00:27092-21open_files19:37:282
64299966,0cyclictest83050irq/26-0000:00:20:33:122
64299960,0cyclictest0-21swapper/223:52:082
64289960,0cyclictest0-21swapper/120:47:201
339960,0migration/39187-21aten_r1power_en22:02:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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