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2026-04-15 - 23:23
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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 Wed Apr 15, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1210982228171,17sleep40-21swapper/407:09:344
1190472227172,18sleep30-21swapper/307:07:563
1210112226170,18sleep00-21swapper/007:08:170
1188932223168,19sleep70-21swapper/707:05:427
1190442220167,17sleep10-21swapper/107:07:531
1190182213183,19sleep20-21swapper/207:07:312
1189652209162,15sleep50-21swapper/507:06:465
1210172208179,18sleep60-21swapper/607:08:246
12135899349,24cyclictest0-21swapper/210:44:172
12137399328,24cyclictest0-21swapper/710:44:197
121348993230,1cyclictest144113-21apt-get07:52:590
12136899311,29cyclictest225375-21systemctl10:20:015
12136699310,30cyclictest206216-21debian-sa109:45:004
12135899310,30cyclictest225314-21apt10:20:002
121373993028,1cyclictest127936-21apt-get07:22:587
121373993028,1cyclictest127936-21apt-get07:22:587
121373993028,1cyclictest0-21swapper/709:40:017
12137399300,29cyclictest681-21dbus-daemon09:25:017
12137399300,29cyclictest0-21swapper/711:05:017
121371993026,3cyclictest209522-21date09:50:016
12137199300,29cyclictest146810-21latency_hist07:55:016
12136899300,2cyclictest132695-21apt07:30:015
121362993028,1cyclictest217870-21apt-get10:07:583
121362993027,2cyclictest182344-21apt-get09:02:593
12136299300,2cyclictest125236-21http07:17:593
12136299300,2cyclictest125236-21http07:17:593
12135899300,2cyclictest176322-21idleruntime-cro08:50:022
12135899300,29cyclictest0-21swapper/207:57:582
12135399300,29cyclictest0-21swapper/111:40:001
121348993028,1cyclictest265756-21debian-sa111:35:010
121348993028,1cyclictest0-21swapper/007:25:010
121348993028,1cyclictest0-21swapper/007:25:010
121373992927,1cyclictest217870-21apt-get10:07:587
121373992926,2cyclictest160156-21idleruntime-cro08:20:017
12137399290,28cyclictest246956-21systemd-run11:00:017
12137399290,28cyclictest0-21swapper/712:32:597
12137399290,28cyclictest0-21swapper/711:47:597
12137399290,28cyclictest0-21swapper/710:17:587
12137399290,28cyclictest0-21swapper/708:27:587
12137399290,1cyclictest0-21swapper/712:10:017
121371992927,1cyclictest700-21rs:main6
121371992926,2cyclictest1-21systemd11:55:016
12137199290,28cyclictest269090-21http11:42:586
12137199290,28cyclictest0-21swapper/612:22:576
12137199290,28cyclictest0-21swapper/609:30:016
121368992927,1cyclictest150028-21apt-get08:03:005
12136899290,28cyclictest0-21swapper/509:12:595
12136899290,1cyclictest0-21swapper/512:20:015
121366992927,1cyclictest146174-21sh07:55:014
121366992927,1cyclictest0-21swapper/409:40:014
12136699290,28cyclictest0-21swapper/412:07:574
12136699290,28cyclictest0-21swapper/408:07:594
12136699290,1cyclictest0-21swapper/407:45:024
12136699290,1cyclictest0-21swapper/407:15:014
121362992928,1cyclictest278-21plymouthd07:30:013
12136299290,28cyclictest0-21swapper/311:40:013
12136299290,28cyclictest0-21swapper/310:37:583
12136299290,28cyclictest0-21swapper/308:42:573
12136299290,1cyclictest0-21swapper/310:25:013
12136299290,0cyclictest285492-21apt-get12:12:583
121358992927,1cyclictest293579-21apt-get12:27:582
121358992927,1cyclictest0-21swapper/211:22:572
121358992926,2cyclictest244210-21debian-sa110:55:012
12135899290,28cyclictest0-21swapper/212:05:012
12135899290,28cyclictest0-21swapper/210:27:562
12135899290,28cyclictest0-21swapper/209:47:572
12135899290,28cyclictest0-21swapper/209:12:592
12135899290,28cyclictest0-21swapper/208:05:022
12135899290,28cyclictest0-21swapper/207:12:572
121353992928,1cyclictest0-21swapper/109:37:571
121353992927,1cyclictest0-21swapper/112:02:581
121353992927,1cyclictest0-21swapper/111:32:581
12135399290,28cyclictest0-21swapper/109:02:591
12135399290,28cyclictest0-21swapper/108:17:571
12135399290,28cyclictest0-21swapper/107:57:581
12135399290,28cyclictest0-21swapper/107:50:011
12135399290,1cyclictest0-21swapper/108:42:561
121348992927,1cyclictest274457-21apt-get11:52:580
12134899290,28cyclictest206838-21apt-get09:47:570
12134899290,28cyclictest0-21swapper/009:30:010
12134899290,28cyclictest0-21swapper/009:12:570
12134899290,28cyclictest0-21swapper/009:07:570
12134899290,28cyclictest0-21swapper/008:52:580
121373992827,1cyclictest154773-21sh08:10:027
121373992827,1cyclictest0-21swapper/711:30:017
121373992827,1cyclictest0-21swapper/711:08:007
121373992827,1cyclictest0-21swapper/709:42:587
121373992827,1cyclictest0-21swapper/708:32:597
121373992825,2cyclictest181685-21cron09:00:027
12137399280,28cyclictest277408-21apt-get11:57:587
12137399280,28cyclictest277408-21apt-get11:57:577
121371992828,0cyclictest0-21swapper/612:37:576
121371992827,1cyclictest0-21swapper/610:45:016
121371992826,1cyclictest121858-21apt-get07:12:566
121371992825,2cyclictest136021-21apt-get07:37:576
12137199280,27cyclictest0-21swapper/609:37:576
12136899280,0cyclictest0-21swapper/512:25:025
121366992827,1cyclictest681-21dbus-daemon11:20:014
121366992827,1cyclictest0-21swapper/412:17:574
121366992827,1cyclictest0-21swapper/407:40:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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