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2026-05-13 - 09:22
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot8.osadl.org (updated Wed May 13, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
347593993431,1cyclictest0-21swapper/322:20:013
3667732310,4sleep0471rcuog/219:20:180
8196172300,5sleep134-21ksoftirqd/100:29:181
347593992421,1cyclictest0-21swapper/321:35:003
347593992320,1cyclictest0-21swapper/322:25:283
347593992320,1cyclictest0-21swapper/319:35:003
347593992320,1cyclictest0-21swapper/319:15:223
347593992320,1cyclictest0-21swapper/300:25:203
347593992219,1cyclictest0-21swapper/323:45:183
347593992219,1cyclictest0-21swapper/323:30:253
3679512211,11sleep2367995-21ntpq19:20:222
34759399212,14cyclictest481060-21chrt20:50:183
347593992119,1cyclictest0-21swapper/322:10:183
347593992118,1cyclictest0-21swapper/321:55:133
347593992118,1cyclictest0-21swapper/321:40:013
347593992118,1cyclictest0-21swapper/320:10:013
347593992118,1cyclictest0-21swapper/319:55:163
347593992118,1cyclictest0-21swapper/300:20:013
347593992118,1cyclictest0-21swapper/300:00:303
347593992017,1cyclictest0-21swapper/323:40:173
347593992017,1cyclictest0-21swapper/323:35:213
347593992017,1cyclictest0-21swapper/322:40:003
347593992017,1cyclictest0-21swapper/322:00:013
347593992017,1cyclictest0-21swapper/321:40:033
34759399201,15cyclictest636671-21taskset22:31:423
34759399201,15cyclictest401007-21turbostat19:50:003
34759399201,14cyclictest597921-21taskset22:08:483
34759399191,14cyclictest533099-21taskset21:25:263
34759399191,14cyclictest519500-21turbostat21:20:013
34759399191,14cyclictest452254-21taskset20:27:213
34759399191,13cyclictest709356-21chrt23:20:133
8216192187,8sleep1822911-21cut00:30:201
34759399182,12cyclictest699983-21taskset23:12:073
347593991815,1cyclictest0-21swapper/300:25:003
34759399181,14cyclictest364992-21taskset19:20:183
34759399181,13cyclictest826919-21taskset00:32:463
34759399181,13cyclictest780933-21taskset00:05:153
34759399181,13cyclictest685564-21taskset23:05:043
34759399181,13cyclictest662092-21taskset22:50:143
34759399181,13cyclictest618671-21taskset22:20:193
34759399181,13cyclictest574439-21taskset21:54:243
34759399181,13cyclictest559194-21taskset21:45:033
34759399181,13cyclictest420134-21taskset20:03:073
347593991714,1cyclictest0-21swapper/323:50:173
347593991714,1cyclictest0-21swapper/323:20:003
347593991714,1cyclictest0-21swapper/321:20:123
347593991714,1cyclictest0-21swapper/320:20:033
347593991714,1cyclictest0-21swapper/300:35:143
34759399171,13cyclictest771473-21taskset23:58:023
34759399171,13cyclictest722695-21taskset23:25:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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