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2026-07-18 - 13:58
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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 Jul 18, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3038723728,0sleep20-21swapper/207:24:422
3033823728,0sleep30-21swapper/307:24:073
3028523526,0sleep10-21swapper/107:23:291
3051223127,0sleep00-21swapper/007:26:080
8305060,0irq/26-0000:00:18486-21processes12:28:233
339960,0migration/33801-21sh11:08:543
339960,0migration/332134-21sh10:48:333
339960,0migration/331713-21munin-node08:58:113
339960,0migration/319056-21irqrtprio10:08:153
339960,0migration/315120-21sh10:40:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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