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2026-04-05 - 02:55
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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 Apr 05, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17392912243187,19sleep50-21swapper/519:09:035
17392702237174,50sleep20-21swapper/219:08:432
17371502227170,19sleep70-21swapper/719:06:087
17372562226174,41sleep10-21swapper/119:07:381
17371162216188,18sleep00-21swapper/019:05:370
17393612212182,19sleep60-21swapper/619:10:016
17392802210180,19sleep30-21swapper/319:08:533
17392722208179,18sleep40-21swapper/419:08:464
173960199579,24cyclictest0-21swapper/221:14:272
1739611995250,1cyclictest0-21swapper/522:10:015
173959699480,24cyclictest0-21swapper/021:14:300
1739604993428,5cyclictest1778491-21taskset20:23:003
1739604993428,5cyclictest0-21swapper/321:20:013
173961799330,30cyclictest1886958-21unin-run23:40:017
1739604993317,8cyclictest278-21plymouthd00:40:013
1739604993228,4cyclictest0-21swapper/323:13:023
1739604993227,4cyclictest1751545-21apt-get19:32:593
1739617993129,1cyclictest0-21swapper/700:25:017
173961299310,30cyclictest1900411-21turbostat.cron00:05:006
173960499310,30cyclictest1835209-21sh22:05:013
173960499310,30cyclictest0-21swapper/322:23:003
173959699310,30cyclictest1780584-21awk20:25:010
173961799300,29cyclictest0-21swapper/722:55:017
173961799300,29cyclictest0-21swapper/721:40:027
173961299300,29cyclictest1767070-21cron20:00:006
173961299300,29cyclictest1742152-21sh19:15:016
173961199300,29cyclictest1810715-21munin-run21:20:025
173961199300,29cyclictest1794272-21sh20:50:015
173960799300,2cyclictest1916815-21sh00:35:014
173960499300,29cyclictest0-21swapper/320:38:003
173960499300,29cyclictest0-21swapper/320:13:003
173960199300,29cyclictest1901033-21apt-get00:08:002
173960199300,29cyclictest1840631-21unin-run22:15:002
173959899300,29cyclictest1759010-21idleruntime-cro19:45:011
173959899300,29cyclictest1759010-21idleruntime-cro19:45:011
173959899300,29cyclictest0-21swapper/122:13:001
1739596993026,3cyclictest1821738-21idleruntime-cro21:40:020
173959699300,29cyclictest1824437-21sh21:45:010
173961799290,28cyclictest0-21swapper/723:22:597
173961799290,28cyclictest0-21swapper/722:17:597
173961799290,28cyclictest0-21swapper/719:58:007
173961799290,1cyclictest1811346-21apt-get21:23:017
173961799290,1cyclictest0-21swapper/722:25:007
1739612992927,1cyclictest1816097-21latency_hist21:30:026
173961299290,28cyclictest0-21swapper/623:37:596
173961299290,1cyclictest0-21swapper/623:55:016
173961299290,1cyclictest0-21swapper/619:45:016
173961299290,1cyclictest0-21swapper/619:45:006
1739611992927,1cyclictest1873795-21apt-get23:17:595
173961199290,28cyclictest0-21swapper/521:55:015
173961199290,28cyclictest0-21swapper/520:45:025
173961199290,28cyclictest0-21swapper/500:15:015
173961199290,1cyclictest0-21swapper/519:52:595
1739607992927,1cyclictest1789264-21apt-get20:43:004
173960799290,28cyclictest1833148-21apt-get22:02:594
173960799290,28cyclictest0-21swapper/419:12:584
173960799290,1cyclictest1816164-21dpkg21:30:024
173960799290,1cyclictest0-21swapper/422:10:004
173960499290,28cyclictest0-21swapper/320:45:023
173960499290,1cyclictest0-21swapper/320:18:003
173960499290,0cyclictest0-21swapper/320:00:023
173960199290,28cyclictest0-21swapper/222:43:002
173960199290,28cyclictest0-21swapper/219:12:582
173960199290,28cyclictest0-21swapper/200:03:012
173960199290,1cyclictest0-21swapper/219:35:002
173959899290,28cyclictest0-21swapper/122:53:021
173959899290,1cyclictest1791326-21idleruntime-cro20:45:011
1739596992928,1cyclictest0-21swapper/019:23:010
1739596992927,1cyclictest1785929-21idleruntime-cro20:35:020
173959699290,28cyclictest0-21swapper/022:53:020
173959699290,28cyclictest0-21swapper/022:47:590
173959699290,28cyclictest0-21swapper/022:08:010
173959699290,28cyclictest0-21swapper/022:02:580
173959699290,28cyclictest0-21swapper/021:28:000
173959699290,28cyclictest0-21swapper/000:08:000
173959699290,1cyclictest1829814-21debian-sa121:55:010
173959699290,1cyclictest0-21swapper/023:50:010
1739617992828,0cyclictest0-21swapper/721:50:017
1739617992827,1cyclictest0-21swapper/720:17:597
173961799280,28cyclictest0-21swapper/700:35:017
173961799280,27cyclictest0-21swapper/722:15:017
173961799280,27cyclictest0-21swapper/721:27:597
173961799280,0cyclictest0-21swapper/700:20:007
173961799280,0cyclictest0-21swapper/700:20:007
1739612992828,0cyclictest0-21swapper/621:20:026
1739612992827,1cyclictest1863021-21apt-get22:58:006
173961299280,28cyclictest0-21swapper/622:27:596
173961299280,28cyclictest0-21swapper/600:33:006
1739611992827,1cyclictest0-21swapper/522:38:005
173961199280,28cyclictest0-21swapper/520:00:005
173961199280,27cyclictest0-21swapper/519:38:015
173961199280,0cyclictest0-21swapper/521:58:005
1739607992827,1cyclictest0-21swapper/420:58:014
1739607992826,1cyclictest0-21swapper/419:50:014
1739607992826,1cyclictest0-21swapper/419:50:014
173960799280,28cyclictest0-21swapper/422:55:014
1739604992828,0cyclictest0-21swapper/319:17:593
1739604992825,2cyclictest1808022-21munin-run21:15:023
173960199280,0cyclictest0-21swapper/220:38:002
1739598992827,1cyclictest0-21swapper/100:13:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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