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2026-04-27 - 12:34
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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 Mon Apr 27, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
693421700,5sleep31257199cyclictest01:10:103
50121460,3sleep01254999cyclictest23:25:210
1068911200,8ptp4l10049-21kworker/3:020:21:333
46212680,4sleep01254999cyclictest00:35:060
106891660,1ptp4l401ktimersoftd/322:57:593
310992650,5sleep01254999cyclictest01:00:320
122302654,10sleep00-21swapper/020:22:170
106891650,1ptp4l401ktimersoftd/323:34:433
73312620,2sleep00-21swapper/000:36:430
62052620,2sleep20-21swapper/222:57:482
106891610,1ptp4l401ktimersoftd/323:02:103
37802600,1sleep10-21swapper/100:00:271
106891600,1ptp4l401ktimersoftd/322:31:343
306592550,1sleep30-21swapper/300:28:033
185312540,3sleep118527-21ssh01:20:361
22162520,1sleep22217-21sh00:31:272
314382500,2sleep20-21swapper/223:23:462
123982504,33sleep20-21swapper/220:24:292
106891500,2ptp4l6631-21kworker/3:123:12:373
148802490,2sleep20-21swapper/201:17:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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