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2026-04-16 - 08:27
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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 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18400802243182,20sleep40-21swapper/419:05:174
18400732227172,17sleep60-21swapper/619:05:116
18423422219167,17sleep00-21swapper/019:09:550
18402562215186,19sleep20-21swapper/219:07:472
18401912211183,18sleep50-21swapper/519:06:555
18402432210180,19sleep70-21swapper/719:07:377
18402092210182,18sleep30-21swapper/319:07:093
18402462209175,21sleep10-21swapper/119:07:381
1842590993828,9cyclictest0-21swapper/323:15:003
184259599370,34cyclictest0-21swapper/519:57:575
184259599370,34cyclictest0-21swapper/519:57:575
184260199340,3cyclictest1982199-21sed23:25:027
1842584993432,1cyclictest0-21swapper/121:40:011
1842595993228,3cyclictest0-21swapper/522:20:005
184259999310,3cyclictest2006105-21sh00:10:016
184258299310,3cyclictest1875747-21awk20:10:010
184260199300,29cyclictest0-21swapper/721:45:017
1842599993027,2cyclictest369-21systemd-journal19:45:006
1842590993027,3cyclictest0-21swapper/320:02:583
1842590993027,2cyclictest1887371-21apt-get20:32:573
184259099300,29cyclictest1962692-21munin-run22:50:003
184259099300,29cyclictest1876596-21apt-get20:12:583
184259099300,29cyclictest0-21swapper/322:02:593
1842588993027,2cyclictest1894834-21debian-sa120:45:012
184258899300,29cyclictest1851222-21latency_hist19:25:012
1842584993028,1cyclictest278-21plymouthd19:50:011
1842584993028,1cyclictest278-21plymouthd19:50:011
1842584993027,2cyclictest369-21systemd-journal23:15:011
1842584993027,2cyclictest1-21systemd23:00:001
184258299300,2cyclictest0-21swapper/020:15:010
184258299300,1cyclictest2006107-21sh00:10:010
1842601992927,1cyclictest278-21plymouthd19:15:007
1842601992927,1cyclictest1990551-21apt-get23:42:577
184260199290,28cyclictest0-21swapper/723:08:007
184260199290,1cyclictest278-21plymouthd22:00:017
184260199290,1cyclictest0-21swapper/721:55:027
1842599992927,2cyclictest1938216-21awk22:05:016
1842599992927,1cyclictest0-21swapper/623:07:596
1842599992927,1cyclictest0-21swapper/622:37:586
184259999290,29cyclictest1846449-21apt-get19:17:576
184259999290,28cyclictest1892767-21apt-get20:42:596
1842595992927,1cyclictest0-21swapper/520:07:595
184259599290,28cyclictest0-21swapper/522:42:575
1842593992927,1cyclictest2012125-21apt-get00:22:574
1842593992927,1cyclictest1968696-21apt-get23:02:594
1842593992927,1cyclictest0-21swapper/422:10:014
184259399290,28cyclictest0-21swapper/423:32:574
184259399290,28cyclictest0-21swapper/422:17:564
184259399290,28cyclictest0-21swapper/419:55:014
184259399290,28cyclictest0-21swapper/419:47:574
184259399290,28cyclictest0-21swapper/419:47:574
184259399290,28cyclictest0-21swapper/419:15:014
184259399290,1cyclictest278-21plymouthd20:05:014
184259399290,1cyclictest2022254-21turbostat.cron00:40:014
184259399290,1cyclictest2009418-21apt-get00:17:574
184259399290,1cyclictest1973460-21munin-run23:10:014
184259399290,1cyclictest0-21swapper/422:40:014
1842590992927,1cyclictest0-21swapper/320:20:023
184259099290,4cyclictest0-21swapper/321:00:023
184259099290,28cyclictest0-21swapper/321:17:583
184259099290,28cyclictest0-21swapper/320:55:023
184259099290,28cyclictest0-21swapper/319:57:573
184259099290,28cyclictest0-21swapper/319:57:573
184259099290,28cyclictest0-21swapper/300:38:003
184259099290,1cyclictest2019607-21systemd-run00:35:013
184259099290,1cyclictest2019607-21systemd-run00:35:003
184259099290,1cyclictest1943851-21awk22:15:013
1842588992926,2cyclictest0-21swapper/223:17:572
1842588992926,2cyclictest0-21swapper/221:02:592
184258899290,28cyclictest0-21swapper/223:02:592
184258899290,28cyclictest0-21swapper/222:22:592
184258899290,28cyclictest0-21swapper/221:17:572
184258899290,28cyclictest0-21swapper/200:22:572
184258899290,28cyclictest0-21swapper/200:00:002
184258899290,1cyclictest0-21swapper/219:55:002
1842584992928,1cyclictest0-21swapper/123:02:581
1842584992927,1cyclictest0-21swapper/123:45:011
184258499290,28cyclictest0-21swapper/122:47:571
184258499290,28cyclictest0-21swapper/121:22:591
184258499290,28cyclictest0-21swapper/121:17:581
184258499290,28cyclictest0-21swapper/121:15:011
184258499290,28cyclictest0-21swapper/119:37:571
184258499290,1cyclictest0-21swapper/100:02:581
184258299290,1cyclictest0-21swapper/021:30:020
1842601992827,1cyclictest0-21swapper/723:50:017
1842601992826,1cyclictest0-21swapper/722:45:017
1842601992826,1cyclictest0-21swapper/700:25:017
184260199280,28cyclictest0-21swapper/700:17:567
184260199280,27cyclictest0-21swapper/722:02:597
1842599992825,2cyclictest0-21swapper/623:40:016
184259999280,28cyclictest278-21plymouthd23:50:016
184259999280,28cyclictest0-21swapper/600:05:016
184259999280,1cyclictest0-21swapper/623:25:016
1842595992827,1cyclictest278-21plymouthd23:55:015
1842595992827,1cyclictest2020191-21apt-get00:38:005
1842595992827,1cyclictest1982467-21apt-get23:27:585
1842595992827,1cyclictest1856601-21idleruntime-cro19:35:015
1842595992826,2cyclictest1960612-21apt-get22:47:575
1842595992826,2cyclictest0-21swapper/522:55:015
1842595992826,2cyclictest0-21swapper/521:57:565
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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