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2026-07-26 - 04:30
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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
Characteristics of the 20 highest latencies:
System rack5slot0.osadl.org (updated Sun Jul 26, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104521290,4sleep22019299cyclictest00:19:432
2690821240,0sleep326909-21id00:33:303
783721220,0sleep02023-21nfsd21:33:490
2671621170,2sleep20-21swapper/221:14:392
79421160,1sleep22019299cyclictest21:20:472
615321020,1sleep06148-21bash23:59:330
1918721000,2sleep20-21swapper/223:39:542
1973729732,44sleep10-21swapper/119:07:301
37442960,2sleep20-21swapper/221:45:012
81552940,1sleep03-21ksoftirqd/023:21:340
213572930,3sleep00-21swapper/022:59:170
199972930,2sleep219991-21sshd23:43:042
105042920,1sleep30-21swapper/321:10:033
24242900,1sleep02421-21sshd21:23:510
233582880,2sleep10-21swapper/122:41:501
105692880,4sleep22019299cyclictest00:29:112
302482860,2sleep041ktimersoftd/022:25:060
302482860,2sleep041ktimersoftd/022:25:060
135822850,3sleep313581-21sshd23:07:173
306422840,1sleep230640-21sshd22:25:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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