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2026-09-16 - 23:02
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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 rack7slot8.osadl.org (updated Wed Sep 16, 2026 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11537231733,238sleep011152-21/usr/sbin/munin19:05:300
123369913541,36cyclictest7965-21apt-get23:07:110
123369913241,37cyclictest543-21apt-get20:32:090
123369912751,39cyclictest28015-21/usr/sbin/munin22:15:390
123369912645,61cyclictest1408-21nginx23:21:240
123369912450,22cyclictest13458-21apt-get21:17:250
123369912347,38cyclictest31764-21ntp_states00:35:410
123369912347,35cyclictest5226-21ntp_states20:45:400
123369912248,53cyclictest16199-21/usr/sbin/munin23:35:380
123369912245,36cyclictest14524-21grep21:20:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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