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2026-09-01 - 10:36
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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 Tue Sep 01, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2662099320,0cyclictest0-21swapper/023:20:110
26631993027,2cyclictest31232-21sh19:20:013
26620993028,1cyclictest625-21avahi-daemon00:10:010
2662099300,29cyclictest31463-21cron20:30:010
2663199290,28cyclictest9821-21perf23:10:013
2663199290,28cyclictest409-21perf22:50:003
2663199290,28cyclictest27948-21apt-get21:30:133
2663199290,1cyclictest0-21swapper/321:20:003
2662799290,28cyclictest6984-21apt-get00:15:122
2662799290,28cyclictest625-21avahi-daemon21:10:012
2662799290,28cyclictest625-21avahi-daemon21:10:002
2662799290,28cyclictest31345-21apt-get23:55:132
2662799290,28cyclictest0-21swapper/219:15:132
26620992927,1cyclictest15696-21apt-get21:05:120
26620992927,1cyclictest15696-21apt-get21:05:120
26620992924,4cyclictest29190-21apt-get19:15:120
2662099290,28cyclictest6143-21apt-get19:35:130
2662099290,1cyclictest19113-21latency_hist23:30:010
26631992828,0cyclictest0-21swapper/323:00:123
26631992828,0cyclictest0-21swapper/322:05:123
2663199280,0cyclictest0-21swapper/319:35:133
2663199280,0cyclictest0-21swapper/319:20:123
2662799280,27cyclictest21722-21apt-get23:35:122
2662799280,0cyclictest0-21swapper/221:35:112
2662799280,0cyclictest0-21swapper/220:40:132
2662799280,0cyclictest0-21swapper/219:30:122
26623992828,0cyclictest0-21swapper/121:50:021
26623992828,0cyclictest0-21swapper/119:20:111
26623992826,1cyclictest307-21systemd-journal22:40:011
26623992826,1cyclictest0-21swapper/123:40:011
2662399280,0cyclictest13377-21apt-get21:00:121
2662399280,0cyclictest12188-21apt-get22:05:131
26620992828,0cyclictest0-21swapper/021:10:100
26631992727,0cyclictest9862-21apt-get22:00:103
26631992727,0cyclictest0-21swapper/323:10:113
26631992727,0cyclictest0-21swapper/322:40:113
26631992727,0cyclictest0-21swapper/320:30:093
26631992727,0cyclictest0-21swapper/319:55:133
26631992726,1cyclictest649-21gdbus22:25:003
2663199270,0cyclictest21496-21apt-get22:25:123
2663199270,0cyclictest0-21swapper/319:40:123
26627992727,0cyclictest0-21swapper/222:55:122
26627992727,0cyclictest0-21swapper/220:45:132
26623992727,0cyclictest0-21swapper/123:10:111
26623992727,0cyclictest0-21swapper/119:45:121
26623992725,1cyclictest31503-21awk20:30:011
2662399270,0cyclictest0-21swapper/119:25:131
26620992727,0cyclictest0-21swapper/020:05:130
26620992727,0cyclictest0-21swapper/019:10:130
26620992726,1cyclictest6096-21awk20:44:590
26631992626,0cyclictest13130-21apt-get19:50:123
26631992626,0cyclictest0-21swapper/323:55:133
26631992626,0cyclictest0-21swapper/320:50:123
26631992626,0cyclictest0-21swapper/319:45:123
26627992626,0cyclictest0-21swapper/222:45:132
26623992625,1cyclictest8228-21munin-run19:40:011
26623992625,0cyclictest0-21swapper/123:05:121
26620992626,0cyclictest0-21swapper/023:40:110
26620992626,0cyclictest0-21swapper/023:05:110
26620992626,0cyclictest0-21swapper/022:20:120
26620992626,0cyclictest0-21swapper/021:40:110
26620992626,0cyclictest0-21swapper/020:15:130
26620992624,2cyclictest0-21swapper/021:45:110
26631992525,0cyclictest0-21swapper/323:15:133
26631992525,0cyclictest0-21swapper/321:45:113
26631992525,0cyclictest0-21swapper/321:15:013
26631992525,0cyclictest0-21swapper/300:20:123
26627992525,0cyclictest0-21swapper/223:00:122
26627992525,0cyclictest0-21swapper/220:30:112
26627992525,0cyclictest0-21swapper/220:20:142
26623992525,0cyclictest32329-21perf21:40:001
26623992525,0cyclictest0-21swapper/100:30:141
26623992525,0cyclictest0-21swapper/100:25:131
26623992524,0cyclictest0-21swapper/121:30:121
26620992525,0cyclictest0-21swapper/022:30:130
26620992525,0cyclictest0-21swapper/021:50:120
26620992525,0cyclictest0-21swapper/020:00:140
26620992525,0cyclictest0-21swapper/000:35:140
26631992424,0cyclictest4612-21apt-get21:50:023
26631992424,0cyclictest0-21swapper/323:35:003
26631992424,0cyclictest0-21swapper/320:45:123
26631992424,0cyclictest0-21swapper/319:10:133
26631992424,0cyclictest0-21swapper/300:00:123
26627992424,0cyclictest0-21swapper/221:45:102
26627992424,0cyclictest0-21swapper/221:15:132
26627992424,0cyclictest0-21swapper/220:15:122
26627992424,0cyclictest0-21swapper/219:50:122
26627992424,0cyclictest0-21swapper/200:00:122
26623992422,1cyclictest307-21systemd-journal21:20:011
26620992424,0cyclictest0-21swapper/020:45:110
26620992422,1cyclictest12113-21cron23:15:010
26631992323,0cyclictest27115-21apt-get20:20:143
26631992321,1cyclictest307-21systemd-journal22:35:013
26627992323,0cyclictest31536-21apt-get19:20:122
26627992323,0cyclictest0-21swapper/220:55:122
26627992322,1cyclictest3539-21perf19:30:012
26627992321,1cyclictest28420-21cron23:50:012
26623992323,0cyclictest22992-21apt-get21:20:111
26623992323,0cyclictest0-21swapper/123:30:131
26623992323,0cyclictest0-21swapper/122:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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