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2025-12-06 - 15:47
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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 50 highest latencies:
System rackbslot6.osadl.org (updated Sat Dec 06, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773911220,8ptp4l9722-21kworker/3:208:21:543
177391670,1ptp4l401ktimersoftd/309:49:543
177391660,1ptp4l401ktimersoftd/313:33:363
312992650,2sleep30-21swapper/310:00:353
4042630,5sleep21728299cyclictest12:45:382
198712590,5sleep21728299cyclictest13:40:472
269272580,2sleep010411-21diskmemload10:45:200
177391580,1ptp4l401ktimersoftd/313:49:563
177391580,1ptp4l401ktimersoftd/313:49:563
299772570,1sleep20-21swapper/213:17:422
177391570,1ptp4l401ktimersoftd/311:33:473
166702570,1sleep30-21swapper/311:47:063
31972550,5sleep09-21ksoftirqd/013:24:100
260832550,1sleep00-21swapper/013:46:470
260832550,1sleep00-21swapper/013:46:470
258922540,5sleep225894-21fschecks_time08:40:332
19052530,2sleep10-21swapper/110:05:421
17271995343,5cyclictest9-21ksoftirqd/012:25:340
177391510,2ptp4l9722-21kworker/3:212:00:493
177391510,2ptp4l9722-21kworker/3:212:00:493
177391500,1ptp4l401ktimersoftd/310:57:083
171642504,34sleep20-21swapper/208:25:122
17282994734,7cyclictest33-21ksoftirqd/212:00:332
17282994734,7cyclictest33-21ksoftirqd/212:00:332
17282994633,6cyclictest33-21ksoftirqd/213:30:352
177391420,8ptp4l401ktimersoftd/313:44:233
17282994229,7cyclictest33-21ksoftirqd/210:30:322
50332410,21sleep233-21ksoftirqd/213:25:412
177391410,1ptp4l401ktimersoftd/312:43:413
17282994130,5cyclictest33-21ksoftirqd/210:58:022
177391400,1ptp4l401ktimersoftd/311:54:273
177391400,1ptp4l401ktimersoftd/311:27:103
177391400,1ptp4l401ktimersoftd/310:52:153
1702324022,8sleep10-21swapper/108:23:211
177391390,1ptp4l401ktimersoftd/310:37:193
17282993933,3cyclictest33-21ksoftirqd/212:55:232
177391380,1ptp4l401ktimersoftd/313:54:043
177391380,1ptp4l401ktimersoftd/313:20:163
177391380,1ptp4l401ktimersoftd/313:08:413
177391380,1ptp4l401ktimersoftd/312:55:253
177391380,1ptp4l401ktimersoftd/308:35:383
177391370,1ptp4l401ktimersoftd/312:35:333
177391370,1ptp4l401ktimersoftd/312:26:583
177391370,1ptp4l401ktimersoftd/310:32:423
177391370,0ptp4l401ktimersoftd/311:57:313
177391370,0ptp4l401ktimersoftd/309:20:423
1707423719,8sleep00-21swapper/008:24:010
177391360,1ptp4l401ktimersoftd/313:05:233
177391360,1ptp4l401ktimersoftd/312:22:153
177391360,1ptp4l401ktimersoftd/308:40:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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