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2026-06-08 - 06:39
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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 rackeslot5.osadl.org (updated Mon Jun 08, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23167993625,5cyclictest0-21swapper/219:30:112
23163993123,4cyclictest0-21swapper/119:30:121
23172993028,1cyclictest6640-21idleruntime-cro23:10:013
23172993028,1cyclictest25717-21apt-get19:15:123
23172993027,2cyclictest30515-21cron00:00:023
2317299300,1cyclictest307-21systemd-journal20:05:023
23163993028,1cyclictest0-21swapper/119:30:011
2315899300,29cyclictest621-21dbus-daemon20:05:020
2317299290,1cyclictest30921-21apt-get00:00:153
2317299290,1cyclictest20950-21munin-run23:40:013
23167992927,1cyclictest0-21swapper/219:30:002
2316799290,28cyclictest22978-21apt-get22:35:132
23163992928,0cyclictest0-21swapper/100:00:151
2316399290,28cyclictest16896-21munin-run00:40:021
2316399290,28cyclictest0-21swapper/123:15:111
23158992927,1cyclictest17496-21awk21:15:000
23158992927,1cyclictest0-21swapper/022:00:010
23172992826,1cyclictest621-21dbus-daemon21:25:013
23172992826,1cyclictest621-21dbus-daemon21:25:013
2317299280,28cyclictest0-21swapper/322:50:123
2317299280,27cyclictest0-21swapper/323:20:133
2317299280,0cyclictest6924-21apt-get23:10:133
2317299280,0cyclictest0-21swapper/300:05:133
23167992828,0cyclictest0-21swapper/223:15:102
23167992827,1cyclictest0-21swapper/200:40:022
2316799280,27cyclictest0-21swapper/200:30:132
2316799280,27cyclictest0-21swapper/200:30:132
2316799280,0cyclictest3827-21apt-get20:45:112
2316799280,0cyclictest0-21swapper/220:25:132
23163992827,0cyclictest0-21swapper/119:15:111
23163992827,0cyclictest0-21swapper/100:20:131
2316399280,28cyclictest0-21swapper/120:10:021
2316399280,27cyclictest0-21swapper/122:00:121
2316399280,0cyclictest0-21swapper/122:55:141
2316399280,0cyclictest0-21swapper/100:30:131
2316399280,0cyclictest0-21swapper/100:30:121
23158992828,0cyclictest856-21apt-get00:05:130
23158992827,1cyclictest6627-21cron23:10:010
23158992826,1cyclictest307-21systemd-journal00:00:020
23158992826,1cyclictest27784-21perf19:20:010
2315899280,28cyclictest0-21swapper/023:10:130
2315899280,0cyclictest0-21swapper/023:40:010
2315899280,0cyclictest0-21swapper/021:50:120
2315899280,0cyclictest0-21swapper/000:00:150
23172992727,0cyclictest0-21swapper/321:04:593
23172992727,0cyclictest0-21swapper/320:10:123
23172992727,0cyclictest0-21swapper/319:55:133
23172992727,0cyclictest0-21swapper/319:25:133
23172992725,1cyclictest1206-21sendmail-msp20:40:013
2317299270,0cyclictest0-21swapper/322:00:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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