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2026-09-15 - 13:48
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Tue Sep 15, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3108224290,14sleep0462-1kworker/u3:118:56:180
38239910316,46cyclictest30969-21fw_conntrack22:51:180
38239910218,25cyclictest29332-21df_inode00:21:130
38239910216,25cyclictest30998-21memory21:16:370
38239910120,39cyclictest3039-21munin-run21:30:200
38239910115,23cyclictest25982-21memory22:36:340
38239910111,27cyclictest8592-21ntpq19:26:240
38239910017,62cyclictest20751-21ssh22:21:280
38239910015,42cyclictest8469-21sshd21:45:550
38239910011,66cyclictest27480-21/usr/sbin/munin00:15:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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