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2026-04-19 - 13:52
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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 20 highest latencies:
System rackbslot6.osadl.org (updated Sun Apr 19, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53021660,5sleep32636799cyclictest00:11:293
3193621560,4sleep12635699cyclictest01:16:111
342121490,5sleep12635699cyclictest21:45:571
2554921250,3sleep10-21swapper/120:16:021
106891990,4ptp4l401ktimersoftd/320:16:143
106891750,1ptp4l401ktimersoftd/300:03:263
106891690,1ptp4l401ktimersoftd/300:48:263
106891670,1ptp4l401ktimersoftd/323:15:103
261002664,10sleep00-21swapper/020:18:360
106891650,8ptp4l401ktimersoftd/322:42:343
190202630,2sleep20-21swapper/201:36:122
120402620,3sleep32636799cyclictest20:55:533
106891600,1ptp4l401ktimersoftd/300:40:193
106891600,1ptp4l401ktimersoftd/300:40:193
106891580,1ptp4l401ktimersoftd/320:37:543
224522570,4sleep2321ktimersoftd/223:29:082
155312550,2sleep00-21swapper/000:26:520
26367995440,7cyclictest41-21ksoftirqd/323:25:523
106891530,1ptp4l401ktimersoftd/321:50:073
106891520,1ptp4l401ktimersoftd/301:47:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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