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2026-11-15 - 05:12
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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 Nov 15, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2676424637,0sleep10-21swapper/119:35:461
2679824028,0sleep20-21swapper/219:36:112
2665623829,0sleep30-21swapper/319:34:283
2672622925,0sleep00-21swapper/019:35:210
270129970,0cyclictest16047-40yum-updatesd-he21:43:062
339960,0migration/39967-21sh01:07:403
339960,0migration/37970-21missed_timers19:43:083
339960,0migration/33273-21sh22:31:423
339960,0migration/327605-21sh00:01:183
339960,0migration/326022-21sh22:23:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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