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2025-07-12 - 11:30
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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 Sat Jul 12, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1518912120,5ptp4l401ktimersoftd/322:04:453
818721620,4sleep2746599cyclictest00:49:332
301121590,5sleep2746599cyclictest00:43:072
2956121570,5sleep0745399cyclictest00:35:420
326132620,2sleep30-21swapper/303:05:243
151891590,1ptp4l401ktimersoftd/302:25:373
151891590,1ptp4l401ktimersoftd/301:49:143
151891590,1ptp4l401ktimersoftd/301:41:523
151891590,1ptp4l401ktimersoftd/300:50:373
151891590,1ptp4l401ktimersoftd/300:50:373
201312580,2sleep00-21swapper/003:30:110
73002574,40sleep00-21swapper/022:04:310
151891560,1ptp4l401ktimersoftd/302:59:033
745999556,17cyclictest9618-21ssh03:15:351
745999547,13cyclictest26850-21cat01:45:371
41792540,2sleep10-21swapper/101:55:491
151891540,1ptp4l401ktimersoftd/301:10:063
745999537,12cyclictest14543-21if_ens323:25:281
151891530,1ptp4l401ktimersoftd/303:00:583
151891520,1ptp4l401ktimersoftd/300:45:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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