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2026-06-28 - 08:47
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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 Sun Jun 28, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40045612228168,19sleep20-21swapper/219:05:292
40048742226163,18sleep40-21swapper/419:09:584
40046712225166,19sleep10-21swapper/119:07:051
40045752224162,19sleep70-21swapper/719:05:437
40046882214185,19sleep60-21swapper/619:07:196
40047202211183,19sleep00-21swapper/019:07:450
40045642207178,19sleep50-21swapper/519:05:325
40047232206178,18sleep30-21swapper/319:07:483
4005074994745,1cyclictest0-21swapper/023:55:030
400507499330,31cyclictest4121386-21cpuspeed_turbos22:40:030
4005091993228,3cyclictest4067786-21cron21:05:017
4005091993228,3cyclictest4067786-21cron21:05:017
400509199320,31cyclictest4143515-21/usr/sbin/munin23:20:037
4005088993227,4cyclictest4098439-21cron22:00:016
400508499320,31cyclictest4087723-21apt-get21:40:034
400509199310,3cyclictest1-21systemd00:00:017
400508699310,30cyclictest4037121-21apt-get20:10:045
400508499310,28cyclictest4023248-21apt-get19:45:024
400508499310,28cyclictest0-21swapper/421:50:034
4005076993130,1cyclictest4046448-21expr20:25:031
400507699310,29cyclictest0-21swapper/119:30:011
400509199300,29cyclictest4185675-21apt-get00:35:017
400509199300,29cyclictest4185675-21apt-get00:35:017
4005088993025,4cyclictest4090111-21latency_hist21:45:016
400508899300,29cyclictest791rcuc/620:35:026
4005086993026,4cyclictest1-21systemd19:15:025
4005086993026,3cyclictest4034731-21apt-get20:05:025
400508699301,1cyclictest4148604-21cron23:30:015
4005080993027,2cyclictest279850-21systemd-journal23:50:013
400508099300,29cyclictest290-21plymouthd00:35:013
400508099300,29cyclictest290-21plymouthd00:35:013
400508099300,29cyclictest1-21systemd00:20:013
400508099300,29cyclictest0-21swapper/323:02:383
400508099300,29cyclictest0-21swapper/322:30:013
400508099300,29cyclictest0-21swapper/321:16:433
400508099300,29cyclictest0-21swapper/321:10:013
400507999300,29cyclictest4098616-21apt-get22:00:022
400507699300,2cyclictest1-21systemd20:00:011
4005074993027,2cyclictest0-21swapper/021:30:020
4005074993025,4cyclictest4156958-21cron23:45:010
4005091992927,1cyclictest290-21plymouthd00:10:017
400509199290,28cyclictest4149032-21apt-get23:30:027
400509199290,28cyclictest4115964-21/usr/sbin/munin22:30:027
400509199290,28cyclictest1-21systemd21:35:017
400509199290,28cyclictest0-21swapper/723:15:027
400509199290,28cyclictest0-21swapper/720:50:017
400509199290,28cyclictest0-21swapper/720:07:547
400509199290,28cyclictest0-21swapper/700:38:527
400509199290,28cyclictest0-21swapper/700:01:147
4005088992928,1cyclictest0-21swapper/600:25:036
4005088992927,1cyclictest4029143-21apt-get19:55:026
4005088992927,1cyclictest290-21plymouthd19:35:016
4005088992927,1cyclictest0-21swapper/619:50:016
400508899290,28cyclictest81-21ksoftirqd/621:45:026
400508899290,28cyclictest4177677-21apt-get00:20:036
400508899290,28cyclictest0-21swapper/623:55:036
400508899290,28cyclictest0-21swapper/623:50:026
400508899290,28cyclictest0-21swapper/621:00:026
400508899290,28cyclictest0-21swapper/621:00:026
400508899290,28cyclictest0-21swapper/620:49:186
400508899290,1cyclictest0-21swapper/623:03:426
400508899290,1cyclictest0-21swapper/622:00:026
400508899290,1cyclictest0-21swapper/621:35:006
400508899290,1cyclictest0-21swapper/600:10:046
400508899290,0cyclictest0-21swapper/600:02:486
4005086992928,1cyclictest0-21swapper/520:25:035
400508699290,29cyclictest4151384-21cron23:35:015
400508699290,29cyclictest0-21swapper/521:00:015
400508699290,29cyclictest0-21swapper/521:00:015
400508699290,28cyclictest0-21swapper/521:25:045
400508699290,28cyclictest0-21swapper/520:35:015
400508699290,28cyclictest0-21swapper/500:20:035
400508699290,28cyclictest0-21swapper/500:08:145
400508699290,1cyclictest4157391-21apt-get23:45:035
4005084992927,1cyclictest4101633-21apt-get22:05:044
400508499290,28cyclictest0-21swapper/400:00:034
400508499290,1cyclictest1-21systemd23:15:014
400508499290,0cyclictest0-21swapper/421:35:034
400508499290,0cyclictest0-21swapper/419:31:534
4005080992927,1cyclictest0-21swapper/323:20:013
400508099290,28cyclictest107-21kcompactd019:19:313
400508099290,28cyclictest0-21swapper/323:05:093
400508099290,28cyclictest0-21swapper/322:48:073
400508099290,28cyclictest0-21swapper/322:40:033
400508099290,28cyclictest0-21swapper/322:20:033
400508099290,28cyclictest0-21swapper/322:06:113
400508099290,28cyclictest0-21swapper/322:01:203
400508099290,28cyclictest0-21swapper/321:50:033
400508099290,28cyclictest0-21swapper/319:25:013
400508099290,1cyclictest0-21swapper/323:30:023
4005079992928,1cyclictest0-21swapper/221:15:042
400507999290,28cyclictest1-21systemd19:45:012
400507999290,28cyclictest0-21swapper/223:05:022
400507999290,28cyclictest0-21swapper/222:20:022
400507999290,28cyclictest0-21swapper/222:05:032
400507999290,28cyclictest0-21swapper/219:20:022
400507999290,27cyclictest0-21swapper/219:50:022
400507999290,1cyclictest4070582-21apt-get21:10:022
4005076992928,1cyclictest4162978-21apt-get23:55:031
4005076992928,1cyclictest0-21swapper/122:55:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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