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2026-01-07 - 16:52
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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 Jan 07, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1614025243,0sleep10-21swapper/107:11:271
1617523928,0sleep30-21swapper/307:11:543
1585823526,0sleep20-21swapper/207:08:122
1582223524,0sleep00-21swapper/007:07:460
8305070,0irq/26-0000:00:14698-21entropy10:52:232
8305060,0irq/26-0000:00:30697-21crond07:22:082
339960,0migration/39396-21sh10:47:293
339960,0migration/35274-21sh10:07:493
339960,0migration/34615-21aten_r1power_po12:17:213
339960,0migration/332488-21sh11:55:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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