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2026-05-01 - 22:14
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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
Characteristics of the 50 highest latencies:
System rackeslot2.osadl.org (updated Fri May 01, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171466021310,3sleep30-21swapper/312:15:003
17411532690,1sleep10-21swapper/112:30:341
13239622570,1sleep11323963-21expr07:40:271
1283281993835,2cyclictest1692201-21munin-run12:00:001
16353412290,1sleep00-21swapper/011:20:340
1283284992718,7cyclictest0-21swapper/210:00:012
1283284992718,7cyclictest0-21swapper/210:00:012
1283280992616,6cyclictest1732688-21kthreadcore12:25:340
1283280992219,2cyclictest1601701-21cron11:00:000
1283280992219,2cyclictest1443412-21apt-key09:15:000
1283280992212,6cyclictest0-21swapper/010:15:330
12967502210,3sleep30-21swapper/307:15:363
1283281992118,2cyclictest3824565-21in:imuxsock10:55:001
1283281992118,2cyclictest1684273-21sh11:55:011
1283281992115,2cyclictest134050irq/121-eno110:40:331
1283281992112,1cyclictest191rcu_preempt10:35:261
1283280992118,2cyclictest1290-21dbus-daemon10:00:020
1283280992118,2cyclictest1290-21dbus-daemon10:00:020
1283280992110,7cyclictest0-21swapper/011:35:320
1283284992018,1cyclictest0-21swapper/211:00:022
1283284992017,1cyclictest0-21swapper/211:15:002
1283281992012,3cyclictest0-21swapper/109:40:011
128328099209,6cyclictest0-21swapper/010:05:270
1283280992013,2cyclictest1311140-21/usr/sbin/munin07:30:290
1283280992012,7cyclictest0-21swapper/009:25:020
2649191190,1ptp4l0-21swapper/308:00:373
26490911910,2phc2sys0-21swapper/310:51:453
2649091190,2phc2sys0-21swapper/309:10:483
1283284991916,1cyclictest0-21swapper/212:05:002
1283281991916,2cyclictest1443889-21systemd09:15:021
1283281991916,2cyclictest1296-21polkitd08:30:001
1283281991916,2cyclictest1289999-21sh07:15:011
128328199190,4cyclictest1465649-21ssh09:28:311
128328099199,5cyclictest0-21swapper/012:30:350
1283280991916,2cyclictest1696948-21kthreadcore12:00:340
1283280991916,2cyclictest1298408-21sh07:20:000
1283280991915,3cyclictest1290-21dbus-daemon07:50:000
1283280991913,5cyclictest1630039-21switchtime11:15:400
1283280991911,4cyclictest1486095-21kthreadcore09:40:350
2649091180,2phc2sys0-21swapper/309:33:313
1283284991816,1cyclictest0-21swapper/211:20:022
1283284991815,2cyclictest0-21swapper/212:40:022
1283284991815,1cyclictest0-21swapper/211:10:012
1283284991815,1cyclictest0-21swapper/208:00:002
1283284991814,1cyclictest0-21swapper/209:43:162
1283281991815,2cyclictest3824565-21in:imuxsock11:20:011
1283281991815,2cyclictest1661881-21sh11:40:011
1283281991815,2cyclictest1559203-21kthreadcore10:30:321
1283281991815,2cyclictest1426-21gdbus12:15:001
1283281991815,2cyclictest1404642-21awk08:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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