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2026-06-26 - 09:35
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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 rack3slot6.osadl.org (updated Fri Jun 26, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3252921100,5chrt31663-21/usr/sbin/munin22:05:361
12639910971,26cyclictest14-21ksoftirqd/000:05:140
1263991076,56cyclictest17356-21sshd21:25:120
12639910711,82cyclictest0-21swapper/023:40:120
12639910573,21cyclictest14-21ksoftirqd/023:00:110
12639910510,82cyclictest0-21swapper/019:10:120
12639910469,23cyclictest14-21ksoftirqd/021:35:130
12639910466,26cyclictest14-21ksoftirqd/020:40:130
12639910466,26cyclictest14-21ksoftirqd/020:40:130
1263991039,80cyclictest29932-21taskset22:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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