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2025-12-19 - 20:00
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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 50 highest latencies:
System rack9slot2.osadl.org (updated Fri Dec 19, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240492405269,115sleep10-21swapper/11
250252274178,24sleep20-21swapper/22
250262249206,29sleep30-21swapper/33
252342230191,26sleep00-21swapper/00
2548899214207,4cyclictest26706-21ls0
2881721720,3sleep12549299cyclictest1
2549299169164,3cyclictest0-21swapper/11
2549399162155,4cyclictest0-21swapper/22
537721590,2sleep00-21swapper/00
2549499116109,4cyclictest26707-21sort3
270652510,2sleep335-21ksoftirqd/33
72542410,1sleep20-21swapper/22
279952300,4sleep02548899cyclictest0
221872290,2sleep20-21swapper/22
322552270,3sleep32549499cyclictest3
2549499257,16cyclictest0-21swapper/33
195212250,1sleep10-21swapper/11
2549499245,3cyclictest0-21swapper/33
2549499243,18cyclictest12220-21sendmail-mta3
2549499240,7cyclictest24772-1kworker/3:0H3
25492992415,7cyclictest5793-21gltestperf1
2548899241,20cyclictest31469-21cpuspeed_turbos0
2549499235,2cyclictest0-21swapper/33
2549499234,17cyclictest18545-21sendmail-mta3
2549499234,17cyclictest13331-21sendmail-mta3
25494992316,4cyclictest20779-21apt-get3
25494992310,11cyclictest662-21runrttasks3
2549499230,5cyclictest24772-1kworker/3:0H3
25488992316,4cyclictest340-21systemd-journal0
219882230,2sleep00-21swapper/00
219882230,2sleep00-21swapper/00
2549499224,16cyclictest8151-21sendmail-mta3
2549499224,16cyclictest35-21ksoftirqd/33
2549499224,16cyclictest28847-21sendmail-mta3
2549499224,16cyclictest26706-21sendmail-mta3
2549499223,17cyclictest9267-21sendmail-mta3
2549499223,17cyclictest6506-21sendmail-mta3
2549499223,17cyclictest31279-21sendmail-mta3
2549499223,17cyclictest30769-21sendmail-mta3
2549499223,17cyclictest29957-21sendmail-mta3
2549499223,17cyclictest22810-21sendmail-mta3
2549499223,17cyclictest22810-21sendmail-mta3
2549499223,17cyclictest22604-21sendmail-mta3
2549499223,17cyclictest21494-21sendmail-mta3
2549499223,17cyclictest17420-21sendmail-mta3
2549499223,17cyclictest14657-21sendmail-mta3
2549499221,19cyclictest24618-21munin-run3
2549499221,19cyclictest24618-21munin-run3
2549399222,17cyclictest26871-21idleruntime-cro2
25493992215,4cyclictest30540-21ntp_states2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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