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2026-06-30 - 22:12
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackeslot4.osadl.org (updated Tue Jun 30, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1128373993028,1cyclictest1367911-21kworker/0:2+pm11:57:560
112837399300,2cyclictest191rcu_preempt08:06:180
112838399280,1cyclictest64-21kcompactd007:10:233
1128378992823,3cyclictest1357935-21cron10:55:001
112837899281,6cyclictest1199312-21/usr/sbin/munin08:15:251
112837899280,25cyclictest1153961-21taskset07:35:131
112837899272,21cyclictest1291552-21apt-get09:50:131
112837899271,6cyclictest1454792-21taskset12:30:131
112837899271,6cyclictest1230868-21ps08:50:171
112837899271,22cyclictest1133694-21apt-get07:15:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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