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2026-05-22 - 01:07
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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 Thu May 21, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1391424536,0sleep20-21swapper/207:23:032
1359023728,0sleep30-21swapper/307:19:163
1380923523,0sleep00-21swapper/007:21:490
1380523127,0sleep10-21swapper/107:21:461
14007991111,0cyclictest28121-21sensors08:58:381
339960,0migration/35150-21sh11:02:063
339960,0migration/34666-21sh09:47:043
339960,0migration/326040-21sh10:35:243
339960,0migration/326040-21sh10:35:243
339960,0migration/323936-21sh11:30:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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