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2026-05-09 - 03:32
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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 rackeslot5.osadl.org (updated Sat May 09, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155199310,29cyclictest307-21systemd-journal20:25:003
1551993028,1cyclictest0-21swapper/323:15:013
154699301,28cyclictest0-21swapper/221:20:102
1541993028,1cyclictest649-21gdbus21:50:001
1538993028,0cyclictest151rcu_preempt22:45:140
1551992927,1cyclictest0-21swapper/322:40:013
155199290,28cyclictest0-21swapper/322:05:103
155199290,28cyclictest0-21swapper/320:40:103
155199290,28cyclictest0-21swapper/319:15:103
155199290,28cyclictest0-21swapper/300:15:133
155199290,1cyclictest621-21dbus-daemon23:55:003
154699290,28cyclictest2870-21apt-get22:35:112
154699290,28cyclictest23333-21apt-get22:10:102
154699290,28cyclictest0-21swapper/223:15:112
1541992928,1cyclictest31158-21apt-get23:35:111
1541992927,1cyclictest307-21systemd-journal21:00:001
154199290,28cyclictest28304-21apt-get22:20:101
1538992927,1cyclictest621-21dbus-daemon20:44:590
153899290,28cyclictest8825-21munin-run21:40:000
153899290,28cyclictest7667-21perf20:30:010
153899290,28cyclictest22764-21apt-get22:10:010
153899290,28cyclictest0-21swapper/023:25:120
153899290,28cyclictest0-21swapper/021:25:100
1551992828,0cyclictest6490-21apt-get19:20:123
1551992826,1cyclictest31866-21munin-run21:20:003
155199280,27cyclictest0-21swapper/323:35:103
155199280,27cyclictest0-21swapper/322:10:013
155199280,0cyclictest23371-21apt-get19:55:133
155199280,0cyclictest0-21swapper/320:35:103
155199280,0cyclictest0-21swapper/300:20:123
1546992827,1cyclictest15787-21cron19:40:002
1546992826,1cyclictest0-21swapper/219:55:022
154699280,28cyclictest0-21swapper/220:40:112
154699280,0cyclictest0-21swapper/221:35:112
1541992828,0cyclictest0-21swapper/123:15:111
154199280,28cyclictest0-21swapper/121:30:111
154199280,1cyclictest24553-21apt-get21:05:011
154199280,0cyclictest0-21swapper/123:45:121
154199280,0cyclictest0-21swapper/121:25:111
1538992826,1cyclictest307-21systemd-journal20:20:010
153899280,28cyclictest0-21swapper/022:30:120
1551992727,0cyclictest0-21swapper/323:20:113
1551992727,0cyclictest0-21swapper/300:10:123
1546992727,0cyclictest0-21swapper/200:15:132
1546992726,1cyclictest3417-21apt-get23:45:132
1546992725,1cyclictest18073-21cron22:00:002
1546992725,1cyclictest17246-21cron20:50:002
154699270,27cyclictest0-21swapper/223:20:102
154699270,27cyclictest0-21swapper/223:10:122
154699270,0cyclictest0-21swapper/221:45:102
1541992727,0cyclictest17861-21apt-get00:15:121
1541992727,0cyclictest0-21swapper/123:50:131
1541992727,0cyclictest0-21swapper/119:50:031
1541992727,0cyclictest0-21swapper/100:00:131
1541992726,1cyclictest649-21gdbus22:40:001
154199270,0cyclictest0-21swapper/122:30:001
1538992727,0cyclictest17202-21apt-get23:05:120
1538992727,0cyclictest13763-21chrt19:35:120
1538992727,0cyclictest0-21swapper/023:50:120
1538992727,0cyclictest0-21swapper/021:40:110
1538992727,0cyclictest0-21swapper/019:25:110
1538992727,0cyclictest0-21swapper/000:15:120
153899270,0cyclictest0-21swapper/020:30:120
1551992626,0cyclictest8230-21apt-get20:30:113
1551992626,0cyclictest11403-21apt-get21:45:103
1551992626,0cyclictest0-21swapper/323:55:113
1551992626,0cyclictest0-21swapper/323:05:133
1546992626,0cyclictest495-21apt-get22:30:122
1541992626,0cyclictest17537-21apt-get20:50:091
1541992626,0cyclictest15216-21apt-get20:45:111
1541992625,1cyclictest621-21dbus-daemon22:50:011
1541992625,0cyclictest0-21swapper/123:20:101
1538992626,0cyclictest0-21swapper/022:20:010
1538992626,0cyclictest0-21swapper/000:20:120
1538992625,1cyclictest12281-21munin-run22:55:010
1538992624,1cyclictest1743-21cron21:25:000
1551992525,0cyclictest0-21swapper/322:55:113
1546992525,0cyclictest0-21swapper/219:15:102
1546992524,0cyclictest0-21swapper/223:35:102
1541992525,0cyclictest15830-21perf19:40:021
1541992525,0cyclictest0-21swapper/123:30:131
1541992525,0cyclictest0-21swapper/120:00:011
1541992523,1cyclictest0-21swapper/120:45:001
1538992525,0cyclictest21841-21apt-get23:15:120
1538992525,0cyclictest0-21swapper/000:10:110
1538992523,1cyclictest26219-21cron23:25:010
1551992424,0cyclictest0-21swapper/321:35:113
1551992422,1cyclictest9650-21perf22:50:003
1546992424,0cyclictest26510-21apt-get23:25:102
1546992424,0cyclictest26016-21apt-get20:00:122
154699240,24cyclictest0-21swapper/221:02:552
154699240,24cyclictest0-21swapper/200:02:042
1541992424,0cyclictest10549-21apt-get20:35:101
1541992424,0cyclictest0-21swapper/122:10:111
1538992424,0cyclictest0-21swapper/019:55:120
1538992424,0cyclictest0-21swapper/019:20:110
1551992322,1cyclictest25125-21apt-get21:05:103
1541992323,0cyclictest8117-21apt-get23:55:121
1541992323,0cyclictest0-21swapper/123:10:101
1541992323,0cyclictest0-21swapper/100:05:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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