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2026-04-03 - 10:25
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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 100 highest latencies:
System rack8slot4.osadl.org (updated Fri Apr 03, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32717812225169,44sleep10-21swapper/119:09:441
32717662222169,18sleep50-21swapper/519:09:325
32717742220167,41sleep40-21swapper/419:09:394
32717392219189,19sleep70-21swapper/719:09:107
32695372217189,18sleep30-21swapper/319:05:193
32696702214181,21sleep60-21swapper/619:07:166
32695652211182,18sleep20-21swapper/219:05:422
32717052210183,17sleep00-21swapper/019:08:390
327203599360,29cyclictest278-21plymouthd21:45:013
327204699320,31cyclictest3437928-21cron00:15:017
3272040993228,3cyclictest278-21plymouthd20:20:015
327204699310,30cyclictest3419341-21appstreamcli23:40:007
327204299310,30cyclictest3294388-21sh19:50:016
327203799310,30cyclictest3313861-21apt-get20:28:004
327203799310,29cyclictest3451390-21cron00:40:004
3272035993120,10cyclictest1-21systemd20:20:013
327203099310,30cyclictest3424388-21dump-pmu-power23:50:012
3272026993127,3cyclictest369-21systemd-journal23:10:001
327202699310,30cyclictest3299753-21cron20:00:011
327204299300,30cyclictest3326699-21ls20:50:016
327204299300,30cyclictest3326699-21ls20:50:006
327204299300,29cyclictest278-21plymouthd22:35:026
3272040993023,6cyclictest3280933-21sh19:25:005
3272037993028,1cyclictest0-21swapper/423:28:014
327203799300,29cyclictest3438559-21apt-get00:18:014
327203799300,29cyclictest0-21swapper/423:05:014
327203799300,29cyclictest0-21swapper/420:00:014
3272035993027,2cyclictest3288998-21cron19:40:013
327203599300,29cyclictest681-21dbus-daemon22:10:013
327202699300,1cyclictest369-21systemd-journal00:40:011
327202199300,29cyclictest3345848-21systemd-run21:25:020
327202199300,29cyclictest0-21swapper/023:20:010
3272046992927,1cyclictest278-21plymouthd19:55:017
3272046992927,1cyclictest16450irq/4-ttyS020:55:027
3272046992927,1cyclictest0-21swapper/721:10:007
3272046992927,1cyclictest0-21swapper/700:30:007
327204699290,29cyclictest0-21swapper/723:45:017
327204699290,28cyclictest0-21swapper/722:55:017
327204699290,28cyclictest0-21swapper/721:55:017
327204699290,28cyclictest0-21swapper/719:12:597
3272042992927,1cyclictest3275242-21latency_hist19:15:016
327204299290,28cyclictest0-21swapper/619:33:006
327204299290,1cyclictest3425012-21apt-get23:53:016
327204099290,28cyclictest0-21swapper/523:58:005
327204099290,28cyclictest0-21swapper/521:00:025
3272037992927,1cyclictest3402584-21latency_hist23:10:014
3272037992927,1cyclictest0-21swapper/421:55:024
327203799290,28cyclictest0-21swapper/421:33:014
327203599290,1cyclictest1-21systemd23:05:013
327203599290,1cyclictest0-21swapper/300:00:003
3272030992927,1cyclictest3303092-21apt-get20:07:592
327203099290,28cyclictest0-21swapper/222:18:012
327203099290,28cyclictest0-21swapper/222:02:592
3272026992928,1cyclictest3362208-21turbostat.cron21:55:011
3272026992927,1cyclictest3330263-21apt-get20:57:591
3272026992927,1cyclictest0-21swapper/120:47:591
3272026992927,1cyclictest0-21swapper/120:47:591
327202699290,1cyclictest0-21swapper/123:05:011
3272021992928,1cyclictest1-21systemd22:15:020
327202199290,28cyclictest3297077-21debian-sa119:55:010
327202199290,28cyclictest0-21swapper/020:33:000
327202199290,1cyclictest3438559-21apt-get00:18:010
3272042992828,0cyclictest0-21swapper/620:28:006
3272042992827,1cyclictest3297702-21apt-get19:58:006
3272042992826,1cyclictest3438559-21apt-get00:18:016
327204299280,1cyclictest3416668-21apt-get23:37:586
3272040992826,1cyclictest3400525-21apt-get23:07:595
3272040992826,1cyclictest1-21systemd21:40:015
327204099280,27cyclictest0-21swapper/522:28:005
327204099280,27cyclictest0-21swapper/519:20:015
3272037992827,1cyclictest3289642-21apt-get19:42:594
3272037992827,1cyclictest278-21plymouthd22:30:024
3272037992827,1cyclictest0-21swapper/420:25:014
3272037992826,1cyclictest0-21swapper/400:33:004
327203799280,28cyclictest0-21swapper/421:40:014
3272035992827,1cyclictest1-21systemd19:25:013
3272035992827,1cyclictest0-21swapper/321:13:023
327203599280,28cyclictest0-21swapper/322:40:013
327203099280,28cyclictest0-21swapper/219:45:012
3272026992828,0cyclictest0-21swapper/122:48:011
3272026992827,1cyclictest1-21systemd21:40:021
3272026992827,1cyclictest0-21swapper/100:33:011
3272026992826,1cyclictest3286934-21apt-get19:37:581
3272026992826,1cyclictest0-21swapper/100:08:001
3272021992827,1cyclictest0-21swapper/023:23:010
3272021992827,1cyclictest0-21swapper/019:15:010
327202199280,28cyclictest0-21swapper/000:23:010
327202199280,0cyclictest0-21swapper/022:05:020
3272046992727,0cyclictest0-21swapper/723:33:007
3272046992727,0cyclictest0-21swapper/722:08:007
3272042992727,0cyclictest0-21swapper/623:48:016
3272042992727,0cyclictest0-21swapper/622:18:006
3272042992727,0cyclictest0-21swapper/621:43:006
3272042992726,1cyclictest0-21swapper/623:15:006
3272042992725,1cyclictest3289642-21apt-get19:42:596
327204299270,0cyclictest0-21swapper/622:23:006
327204299270,0cyclictest0-21swapper/621:15:006
3272040992727,0cyclictest0-21swapper/523:30:015
3272040992727,0cyclictest0-21swapper/522:45:015
3272040992725,1cyclictest0-21swapper/522:08:005
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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