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2026-06-02 - 04:29
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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 20 highest latencies:
System rack3slot6.osadl.org (updated Tue Jun 02, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6642210329,19sleep10-21swapper/119:08:201
160742860,22sleep126-21ksoftirqd/119:34:301
199692800,5chrt151rcu_preempt19:45:180
679627914,53sleep00-21swapper/019:09:280
6986997630,14cyclictest0-21swapper/123:00:141
6981997022,15cyclictest22665-21aten2.4-expect00:25:170
6986996948,10cyclictest26-21ksoftirqd/100:35:111
6986996924,40cyclictest26-21ksoftirqd/122:21:371
6981996847,16cyclictest14-21ksoftirqd/020:45:270
6986996749,10cyclictest26-21ksoftirqd/120:45:131
6986996641,11cyclictest26-21ksoftirqd/120:20:121
6981996631,19cyclictest14-21ksoftirqd/020:15:120
6981996536,17cyclictest14-21ksoftirqd/022:04:060
6981996448,9cyclictest14-21ksoftirqd/023:55:030
6981996437,15cyclictest14-21ksoftirqd/023:25:170
6981996437,15cyclictest14-21ksoftirqd/023:25:170
6986996318,13cyclictest8592-21cron20:45:001
6981996341,16cyclictest14-21ksoftirqd/022:30:170
6981996237,19cyclictest14-21ksoftirqd/022:10:150
6986996132,18cyclictest0-21swapper/122:00:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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