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2026-07-23 - 21:39
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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 Thu Jul 23, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2528721550,5sleep22660399cyclictest11:18:392
884621420,4sleep32661299cyclictest11:33:493
1068911190,8ptp4l11581-21kworker/3:009:08:393
106891720,1ptp4l401ktimersoftd/313:30:323
298732660,2sleep00-21swapper/011:55:300
106891660,1ptp4l401ktimersoftd/313:49:053
264682644,10sleep00-21swapper/009:13:040
106891640,1ptp4l401ktimersoftd/314:29:443
106891630,1ptp4l401ktimersoftd/312:00:173
106891610,1ptp4l401ktimersoftd/310:58:513
106891590,1ptp4l401ktimersoftd/313:54:373
106891570,1ptp4l401ktimersoftd/313:40:143
106891570,1ptp4l401ktimersoftd/313:37:293
310222550,3sleep22660399cyclictest14:41:182
263922544,38sleep10-21swapper/109:12:041
106891540,1ptp4l401ktimersoftd/313:28:053
106891540,1ptp4l401ktimersoftd/309:51:213
106891530,1ptp4l401ktimersoftd/313:02:313
106891520,1ptp4l401ktimersoftd/314:18:343
106891510,1ptp4l401ktimersoftd/309:24:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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