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2026-04-16 - 23:20
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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 Thu Apr 16, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35469262230179,41sleep00-21swapper/007:06:270
35469762227165,20sleep30-21swapper/307:07:103
35468832225176,40sleep20-21swapper/207:05:492
35469332217164,17sleep70-21swapper/707:06:347
35469972216187,18sleep60-21swapper/607:07:306
35490992214187,17sleep50-21swapper/507:09:465
35490342214185,19sleep40-21swapper/407:08:484
35468622211179,21sleep10-21swapper/107:05:321
3549368994016,24cyclictest0-21swapper/412:11:184
354936099340,29cyclictest0-21swapper/210:45:012
3549368993326,2cyclictest3593031-21munin-run08:30:014
354936099330,32cyclictest1-21systemd11:50:012
3549376993228,3cyclictest3584932-21sh08:15:017
3549368993227,1cyclictest3655230-21munin-run10:25:024
3549368993227,1cyclictest3650447-21apt-get10:17:584
3549368993226,1cyclictest3728996-21sh12:40:004
3549376993127,3cyclictest0-21swapper/707:25:017
354936999317,24cyclictest0-21swapper/512:11:205
3549368993128,2cyclictest3598399-21cron08:40:004
3549360993127,3cyclictest0-21swapper/210:17:572
3549360993123,2cyclictest3728997-21sh12:40:012
354936099310,30cyclictest0-21swapper/209:27:582
3549376993028,1cyclictest3674055-21cron11:00:017
3549376993028,1cyclictest0-21swapper/709:27:587
354937699300,29cyclictest0-21swapper/708:37:597
3549369993025,4cyclictest1-21systemd11:05:015
354936999300,29cyclictest369-21systemd-journal11:55:015
354936999300,29cyclictest3595709-21latency_hist08:35:005
3549368993027,2cyclictest3726115-21unin-run12:35:014
354936899300,3cyclictest3676761-21apt-get11:05:004
354936899300,2cyclictest3690478-21sh11:30:004
354936899300,2cyclictest3625600-21latency_hist09:30:004
354936899300,29cyclictest3626219-21seq09:32:574
354936499300,30cyclictest3609715-21gmain09:00:013
354936499300,30cyclictest1-21systemd08:55:013
354936499300,30cyclictest1-21systemd08:55:013
354935899300,29cyclictest1-21systemd11:45:011
354935599300,2cyclictest0-21swapper/009:35:010
354935599300,29cyclictest3606475-21sh08:55:010
354935599300,29cyclictest3606475-21sh08:55:000
354935599300,29cyclictest0-21swapper/009:20:020
354937699290,28cyclictest0-21swapper/712:20:017
354937699290,28cyclictest0-21swapper/708:27:577
354937699290,28cyclictest0-21swapper/708:02:587
354937699290,28cyclictest0-21swapper/707:52:577
354937699290,1cyclictest3655839-21apt-get10:27:567
354937699290,1cyclictest0-21swapper/711:05:017
354937699290,1cyclictest0-21swapper/707:40:017
3549374992928,1cyclictest0-21swapper/611:10:016
3549374992927,2cyclictest78-21ksoftirqd/612:20:016
354937499290,29cyclictest278-21plymouthd07:40:016
354937499290,28cyclictest3688416-21apt-get11:27:596
354937499290,28cyclictest3631033-21systemd-run09:40:026
354937499290,28cyclictest0-21swapper/609:07:566
354937499290,1cyclictest681-21dbus-daemon11:05:016
354937499290,1cyclictest0-21swapper/609:00:016
3549369992927,1cyclictest3653156-21http10:22:595
3549369992927,1cyclictest3566069-21cron07:40:015
3549369992927,1cyclictest3549848-21apt-get07:12:585
3549369992926,2cyclictest3612129-21sh09:05:015
354936999290,28cyclictest3599038-21apt-get08:42:595
354936999290,28cyclictest0-21swapper/511:47:585
354936999290,28cyclictest0-21swapper/510:32:575
354936999290,1cyclictest3566723-21apt-get07:42:595
354936999290,1cyclictest0-21swapper/512:00:015
3549368992927,1cyclictest3582871-21apt-get08:12:584
3549368992927,1cyclictest0-21swapper/407:20:014
354936899290,28cyclictest0-21swapper/409:12:584
354936499290,28cyclictest0-21swapper/310:35:023
354936499290,28cyclictest0-21swapper/310:07:573
354936499290,28cyclictest0-21swapper/309:37:583
3549360992927,1cyclictest3579532-21updatedb.plocat08:04:582
354936099290,28cyclictest3626216-21apt-get09:32:562
354936099290,28cyclictest0-21swapper/209:52:582
354936099290,28cyclictest0-21swapper/208:52:582
354936099290,28cyclictest0-21swapper/208:52:582
354936099290,28cyclictest0-21swapper/208:12:592
354936099290,28cyclictest0-21swapper/208:07:582
354936099290,1cyclictest3590953-21apt-get08:27:582
354935899290,1cyclictest0-21swapper/111:57:591
354935599290,28cyclictest0-21swapper/012:11:200
354935599290,28cyclictest0-21swapper/009:42:580
3549376992827,1cyclictest0-21swapper/709:07:557
3549376992827,1cyclictest0-21swapper/707:57:587
354937699280,27cyclictest0-21swapper/710:05:017
3549374992825,3cyclictest0-21swapper/608:25:016
354937499280,28cyclictest0-21swapper/611:33:006
354937499280,27cyclictest0-21swapper/608:07:566
354937499280,1cyclictest761rcuc/611:50:006
3549369992827,1cyclictest1-21systemd12:10:015
3549369992826,1cyclictest3657904-21sh10:30:025
354936999280,28cyclictest3709870-21munin-run12:05:015
354936999280,28cyclictest0-21swapper/511:20:015
354936899280,27cyclictest0-21swapper/408:52:584
354936899280,27cyclictest0-21swapper/408:52:574
354936899280,27cyclictest0-21swapper/408:07:584
354936899280,1cyclictest3614857-21awk09:10:014
3549364992827,1cyclictest3558614-21apt-get07:27:583
3549364992827,1cyclictest0-21swapper/311:45:013
354936499280,28cyclictest0-21swapper/310:15:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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