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2026-04-20 - 03:40
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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 Apr 20, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10879994141,0cyclictest0-21swapper/220:05:132
10880993838,0cyclictest0-21swapper/320:05:123
1088099300,29cyclictest4341-21cron00:40:003
10878993030,0cyclictest4687-21apt-get20:05:131
1087899300,1cyclictest307-21systemd-journal22:25:001
10877993028,1cyclictest30373-21sh21:00:000
1088099290,28cyclictest0-21swapper/321:45:123
1088099290,28cyclictest0-21swapper/321:29:593
1088099290,28cyclictest0-21swapper/321:05:013
1087999290,28cyclictest0-21swapper/222:05:122
1087999290,1cyclictest18178-21apt-get19:25:142
1087999290,1cyclictest18178-21apt-get19:25:142
1087999290,1cyclictest11324-21apt-get23:45:132
1087899290,28cyclictest13645-21apt-get23:50:121
1087799290,28cyclictest0-21swapper/021:05:120
1087799290,1cyclictest621-21dbus-daemon00:05:000
10880992827,1cyclictest20762-21apt-get00:05:143
1088099280,0cyclictest0-21swapper/323:05:133
10879992827,1cyclictest19011-21apt-get20:35:122
1087999280,27cyclictest0-21swapper/220:00:132
10878992828,0cyclictest28868-21apt-get22:05:111
10878992828,0cyclictest0-21swapper/123:15:101
10878992827,1cyclictest24452-21cron23:05:001
1087899280,28cyclictest0-21swapper/100:20:141
1087899280,0cyclictest0-21swapper/121:15:111
10877992826,1cyclictest13772-21awk20:25:010
1087799280,0cyclictest0-21swapper/019:20:130
10880992727,0cyclictest15137-21apt-get22:45:113
10880992727,0cyclictest0-21swapper/323:45:123
1088099270,0cyclictest0-21swapper/323:35:133
1088099270,0cyclictest0-21swapper/322:40:133
1088099270,0cyclictest0-21swapper/319:35:123
10879992725,1cyclictest621-21dbus-daemon23:10:002
10879992725,1cyclictest14605-21awk21:35:002
10879992725,1cyclictest0-21swapper/223:25:122
1087999270,27cyclictest10409-21apt-get22:35:112
1087999270,27cyclictest0-21swapper/219:15:112
10878992727,0cyclictest32396-21apt-get00:30:141
10878992726,1cyclictest29097-21cron23:15:001
1087799270,27cyclictest0-21swapper/023:30:120
1087799270,0cyclictest0-21swapper/021:50:120
10880992626,0cyclictest29811-21apt-get19:50:123
10880992626,0cyclictest0-21swapper/322:05:123
10880992626,0cyclictest0-21swapper/320:00:123
10879992624,1cyclictest621-21dbus-daemon22:55:022
10878992626,0cyclictest0-21swapper/123:50:011
10878992626,0cyclictest0-21swapper/121:40:121
10878992626,0cyclictest0-21swapper/100:35:151
10878992625,1cyclictest11996-21perf21:30:001
10877992626,0cyclictest0-21swapper/023:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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