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2026-06-08 - 01:16
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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 rackbslot7.osadl.org (updated Sun Jun 07, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4692214211,83sleep04712-21sed06:59:380
4792991243,89cyclictest10028-21apt-get09:49:502
4792991243,89cyclictest10028-21apt-get09:49:502
3005421160,22sleep130057-21kernelversion12:09:591
4792991113,82cyclictest25254-21ssh10:14:492
4792991073,81cyclictest25943-21apt-get11:09:532
47849910453,44cyclictest14460-21/usr/sbin/munin10:50:071
47929910255,39cyclictest16016-21sh09:05:092
47929910214,61cyclictest17634-21apt-get11:49:502
47929910214,61cyclictest17634-21apt-get11:49:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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