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2025-11-05 - 12:46
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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 Wed Nov 05, 2025 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18112224630,11sleep015475-1kworker/u3:117:37:460
187279910529,64cyclictest0-21swapper21:24:220
187279910319,64cyclictest9981-21memory21:28:070
187279910312,68cyclictest3414-21ssh22:47:160
187279910310,55cyclictest910-21cat22:38:240
187279910216,25cyclictest22045-21ssh22:03:570
187279910211,68cyclictest16682-21/usr/sbin/munin21:48:200
187279910116,65cyclictest25923-21munin-run22:16:480
187279910116,63cyclictest2411-21ntp_states22:43:320
187279910115,63cyclictest25838-21df20:37:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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