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2025-11-27 - 09:02
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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 Thu Nov 27, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26692993227,5cyclictest11848-21apt-get23:20:121
2668799320,31cyclictest0-21swapper/023:40:180
26687993125,5cyclictest13890-21cron23:25:010
2668799310,30cyclictest0-21swapper/020:55:170
2669299300,29cyclictest1598-21cron21:50:001
2669699290,28cyclictest24874-21munin-run20:15:012
2669699290,28cyclictest17690-21apt-get21:15:102
2669699290,1cyclictest5907-21cron19:35:002
2669299290,28cyclictest1900-21apt-get21:50:121
26687992927,1cyclictest303-21systemd-journal23:35:000
2668799290,28cyclictest12780-21munin-run21:05:000
26700992827,1cyclictest4797-21apt-get23:05:123
26700992827,1cyclictest4797-21apt-get23:05:113
26700992826,2cyclictest0-21swapper/323:45:123
26700992826,1cyclictest5235-21cron00:15:003
2670099280,27cyclictest9936-21perf00:25:003
2670099280,27cyclictest0-21swapper/321:35:103
2670099280,1cyclictest14847-21apt-get00:35:153
2670099280,0cyclictest0-21swapper/321:15:113
2670099280,0cyclictest0-21swapper/300:30:123
26696992828,0cyclictest30222-21apt-get22:50:132
26696992826,1cyclictest18570-21apt-get22:25:122
2669699280,0cyclictest0-21swapper/222:15:102
26692992828,0cyclictest6507-21apt-get19:35:141
26692992828,0cyclictest0-21swapper/123:45:111
26692992824,3cyclictest0-21swapper/121:35:011
2669299280,28cyclictest27322-21apt-get21:35:111
2669299280,28cyclictest11576-21apt-get22:10:121
2669299280,28cyclictest0-21swapper/121:05:111
2669299280,0cyclictest0-21swapper/123:25:151
26687992828,0cyclictest0-21swapper/022:10:120
26687992826,1cyclictest30237-21install00:00:020
26687992825,3cyclictest0-21swapper/020:05:140
26687992823,4cyclictest0-21swapper/019:35:010
2668799280,28cyclictest0-21swapper/019:30:130
2668799280,27cyclictest0-21swapper/022:50:130
26700992727,0cyclictest13501-21apt-get19:50:133
26700992727,0cyclictest0-21swapper/323:35:123
2670099270,27cyclictest0-21swapper/320:05:133
2670099270,0cyclictest0-21swapper/321:50:113
2670099270,0cyclictest0-21swapper/319:25:113
26696992727,0cyclictest0-21swapper/200:10:112
26696992726,1cyclictest0-21swapper/219:15:022
26696992726,0cyclictest0-21swapper/223:15:112
2669699270,0cyclictest29243-21apt-get19:15:112
26692992727,0cyclictest9499-21apt-get23:15:121
26692992727,0cyclictest0-21swapper/120:05:121
26692992727,0cyclictest0-21swapper/119:25:111
26692992727,0cyclictest0-21swapper/100:25:141
26692992726,1cyclictest9252-21apt-get22:05:111
2669299270,0cyclictest0-21swapper/123:35:011
26687992727,0cyclictest0-21swapper/023:15:120
26687992727,0cyclictest0-21swapper/023:10:120
26687992727,0cyclictest0-21swapper/022:05:010
26687992727,0cyclictest0-21swapper/021:40:000
26700992626,0cyclictest28197-21apt-get23:55:123
26700992626,0cyclictest0-21swapper/322:50:143
26700992626,0cyclictest0-21swapper/322:45:123
26700992624,1cyclictest0-21swapper/322:35:013
26696992626,0cyclictest6626-21apt-get22:00:142
26696992626,0cyclictest0-21swapper/221:10:112
26692992626,0cyclictest0-21swapper/120:05:011
26692992626,0cyclictest0-21swapper/100:20:131
26692992626,0cyclictest0-21swapper/100:10:121
26692992625,1cyclictest32507-21cron20:35:011
26692992624,1cyclictest30273-40mandb00:00:011
26692992623,3cyclictest0-21swapper/121:15:111
26687992626,0cyclictest0-21swapper/022:20:130
26687992626,0cyclictest0-21swapper/021:05:120
26687992626,0cyclictest0-21swapper/020:55:000
26687992626,0cyclictest0-21swapper/020:20:120
26700992525,0cyclictest0-21swapper/323:10:113
26700992525,0cyclictest0-21swapper/319:55:153
26696992525,0cyclictest31990-21apt-get21:45:122
26692992525,0cyclictest0-21swapper/122:45:131
26692992522,3cyclictest0-21swapper/123:05:111
26692992522,3cyclictest0-21swapper/123:05:111
26687992525,0cyclictest0-21swapper/019:50:120
26687992523,2cyclictest0-21swapper/000:05:120
26700992423,1cyclictest1208-21cron19:25:023
26696992424,0cyclictest0-21swapper/223:40:112
26692992424,0cyclictest22823-21apt-get20:10:141
26692992423,1cyclictest611-21avahi-daemon23:00:001
26687992424,0cyclictest0-21swapper/022:00:130
26687992424,0cyclictest0-21swapper/000:25:130
26687992422,1cyclictest609-21dbus-daemon21:49:590
26700992321,1cyclictest303-21systemd-journal22:15:013
26696992323,0cyclictest16498-21apt-get23:30:132
26687992323,0cyclictest0-21swapper/021:30:110
26700992222,0cyclictest0-21swapper/321:05:123
26700992222,0cyclictest0-21swapper/320:50:123
26696992222,0cyclictest8370-21apt-get20:55:102
26692992222,0cyclictest25145-21apt-get20:15:141
26700992121,0cyclictest0-21swapper/320:40:083
26700992121,0cyclictest0-21swapper/319:35:133
26700992120,1cyclictest611-21avahi-daemon23:30:003
26700992120,1cyclictest20611-21turbostat.cron22:30:003
26700992120,0cyclictest0-21swapper/300:05:123
26696992121,0cyclictest0-21swapper/222:55:132
26696992121,0cyclictest0-21swapper/219:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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