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2025-11-23 - 05:06
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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 Sun Nov 23, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11328993736,1cyclictest28-21ksoftirqd/200:40:002
1132399330,1cyclictest24106-21apt-get20:45:130
1132999310,30cyclictest0-21swapper/300:05:123
1132999300,29cyclictest9509-21idleruntime-cro23:40:013
11327993028,1cyclictest303-21systemd-journal00:35:011
11327993028,1cyclictest0-21swapper/122:55:011
1132999290,28cyclictest3693-21apt-get21:10:123
1132999290,28cyclictest22341-21apt-get21:50:133
1132999290,28cyclictest0-21swapper/323:15:133
1132999290,28cyclictest0-21swapper/321:00:123
1132999290,28cyclictest0-21swapper/320:00:143
1132999290,28cyclictest0-21swapper/319:35:133
1132999290,0cyclictest0-21swapper/300:15:133
11328992928,1cyclictest28-21ksoftirqd/220:00:002
11328992925,4cyclictest28-21ksoftirqd/221:45:132
1132799290,28cyclictest11250-21apt-get22:35:131
11323992928,1cyclictest19829-21apt-get00:00:160
1132399290,1cyclictest9846-21perf20:15:020
1132399290,1cyclictest30278-21cron19:50:010
1132399290,1cyclictest10953-21cron22:35:010
11329992828,0cyclictest0-21swapper/320:40:133
11329992827,0cyclictest0-21swapper/322:00:113
1132999280,28cyclictest0-21swapper/321:25:143
1132999280,27cyclictest0-21swapper/323:20:123
1132999280,27cyclictest0-21swapper/322:45:123
11328992828,0cyclictest0-21swapper/200:30:142
11328992827,1cyclictest0-21swapper/219:45:022
11328992826,1cyclictest303-21systemd-journal20:25:002
1132899280,28cyclictest0-21swapper/221:55:132
1132899280,28cyclictest0-21swapper/220:30:122
1132899280,27cyclictest2803-21apt-get23:25:142
11327992828,0cyclictest0-21swapper/123:45:131
1132799280,28cyclictest0-21swapper/119:30:151
1132799280,27cyclictest0-21swapper/121:40:141
1132799280,0cyclictest771-21apt-get19:55:151
11323992828,0cyclictest21783-21apt-get20:40:130
11323992828,0cyclictest0-21swapper/019:25:150
11329992727,0cyclictest12133-21apt-get23:45:143
11329992727,0cyclictest0-21swapper/323:50:123
11328992727,0cyclictest16224-21apt-get22:45:122
11328992727,0cyclictest0-21swapper/223:05:122
11328992727,0cyclictest0-21swapper/221:10:122
11328992727,0cyclictest0-21swapper/219:25:142
11328992726,1cyclictest609-21dbus-daemon22:20:012
1132899270,27cyclictest0-21swapper/222:35:142
1132899270,0cyclictest0-21swapper/223:35:122
1132899270,0cyclictest0-21swapper/221:40:132
1132899270,0cyclictest0-21swapper/219:40:152
11327992727,0cyclictest3790-21apt-get00:35:141
11327992727,0cyclictest13900-21apt-get22:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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