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2025-12-26 - 16:52
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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 Fri Dec 26, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4318993430,4cyclictest23527-21cron12:25:011
4326993028,1cyclictest201262sleep310:00:133
432299300,29cyclictest307-21systemd-journal11:30:012
4318993028,1cyclictest30526-21cron12:40:011
4318993028,1cyclictest10764-21apt-get09:40:141
431599300,1cyclictest621-21dbus-daemon12:00:010
4326992927,1cyclictest30267-21cron11:30:003
4326992927,1cyclictest0-21swapper/309:10:003
432699290,28cyclictest23271-21apt-get11:15:143
432699290,28cyclictest15701-21apt-get11:00:133
4322992927,1cyclictest27683-21munin-run11:25:012
432299290,28cyclictest0-21swapper/210:30:122
432299290,28cyclictest0-21swapper/209:45:112
431899290,1cyclictest25705-21perf07:55:011
431599290,28cyclictest0-21swapper/010:55:110
431599290,28cyclictest0-21swapper/008:15:140
431599290,1cyclictest2526-21sendmail-msp11:40:010
4326992827,1cyclictest0-21swapper/309:45:113
432699280,0cyclictest27086-21apt-get10:15:133
432699280,0cyclictest0-21swapper/307:55:123
4322992828,0cyclictest18999-21apt-get07:40:122
432299280,27cyclictest825-21apt-get08:10:122
432299280,27cyclictest0-21swapper/209:10:002
431599280,28cyclictest0-21swapper/011:30:110
431599280,0cyclictest0-21swapper/012:05:120
431599280,0cyclictest0-21swapper/007:10:120
4326992727,0cyclictest1656-21apt-get10:30:113
4326992727,0cyclictest0-21swapper/307:40:123
432699270,27cyclictest0-21swapper/307:30:013
4322992727,0cyclictest17200-21apt-get08:45:102
4322992727,0cyclictest0-21swapper/211:35:142
4322992727,0cyclictest0-21swapper/210:50:132
4322992727,0cyclictest0-21swapper/210:05:122
4322992727,0cyclictest0-21swapper/207:55:132
432299270,27cyclictest3164-21apt-get08:15:142
432299270,27cyclictest0-21swapper/211:40:152
4318992727,0cyclictest9530-21apt-get07:20:131
4318992727,0cyclictest30567-21apt-get11:30:111
4318992727,0cyclictest0-21swapper/108:40:141
4318992725,1cyclictest8405-21munin-run10:45:011
431899270,27cyclictest0-21swapper/111:25:141
431899270,27cyclictest0-21swapper/108:00:131
4315992727,0cyclictest8420-21apt-get09:35:130
4315992727,0cyclictest0-21swapper/010:10:120
4315992727,0cyclictest0-21swapper/007:30:100
4326992626,0cyclictest0-21swapper/309:35:133
4326992626,0cyclictest0-21swapper/308:15:143
4326992626,0cyclictest0-21swapper/308:10:123
4326992624,2cyclictest27659-21cron11:25:013
4322992626,0cyclictest0-21swapper/211:00:132
4322992626,0cyclictest0-21swapper/209:50:122
4322992625,1cyclictest6339-21apt-get10:40:132
4322992624,1cyclictest307-21systemd-journal07:25:012
4318992626,0cyclictest0-21swapper/109:10:091
4318992626,0cyclictest0-21swapper/108:25:001
4318992624,1cyclictest0-21swapper/112:30:011
4315992626,0cyclictest0-21swapper/010:35:140
4315992626,0cyclictest0-21swapper/010:30:130
4315992626,0cyclictest0-21swapper/009:30:120
4315992626,0cyclictest0-21swapper/007:45:120
4315992624,1cyclictest28172-21cron12:35:010
4315992624,1cyclictest13072-21cron10:54:590
4326992525,0cyclictest2823-21apt-get11:40:153
4326992525,0cyclictest0-21swapper/310:05:123
4322992525,0cyclictest0-21swapper/212:15:112
4322992525,0cyclictest0-21swapper/211:20:002
4322992525,0cyclictest0-21swapper/210:15:132
4322992525,0cyclictest0-21swapper/208:05:132
4318992525,0cyclictest11904-21apt-get07:25:121
4318992525,0cyclictest0-21swapper/108:50:121
4326992424,0cyclictest0-21swapper/310:50:133
4326992424,0cyclictest0-21swapper/309:50:123
4326992424,0cyclictest0-21swapper/308:45:103
4326992423,1cyclictest19153-21apt-get12:15:113
432299249,15cyclictest90732sleep208:25:202
4322992424,0cyclictest0-21swapper/211:10:112
4322992424,0cyclictest0-21swapper/208:20:132
4322992423,1cyclictest24492-21apt-get09:00:122
4318992424,0cyclictest22710-21apt-get11:15:021
4318992424,0cyclictest0-21swapper/112:05:111
4318992424,0cyclictest0-21swapper/108:35:131
4318992422,1cyclictest15426-21perf11:00:011
4315992424,0cyclictest6339-21apt-get10:40:130
4315992424,0cyclictest23822-21apt-get12:25:130
4315992424,0cyclictest0-21swapper/008:20:130
4315992422,1cyclictest22685-21sh11:15:010
4326992323,0cyclictest0-21swapper/310:40:133
4326992323,0cyclictest0-21swapper/308:05:133
4322992323,0cyclictest5148-21apt-get11:45:102
432299231,4cyclictest0-21swapper/207:16:152
4318992323,0cyclictest0-21swapper/110:00:131
4318992322,1cyclictest26145-21apt-get12:30:141
4318992321,1cyclictest621-21dbus-daemon09:55:011
4318992321,1cyclictest5222-21sendmail-msp08:20:021
4315992323,0cyclictest0-21swapper/010:20:130
4315992322,1cyclictest0-21swapper/008:55:000
4326992222,0cyclictest20645-21apt-get11:10:113
4326992221,1cyclictest11619-21awk07:25:013
4322992219,2cyclictest9511-21awk11:55:012
4318992222,0cyclictest0-21swapper/112:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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