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2025-12-20 - 20:27
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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 Dec 20, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
596999482,2cyclictest0-21swapper/308:35:143
596599300,29cyclictest23727-21sh11:15:011
596499300,0cyclictest659-21apt-get10:25:130
596999290,28cyclictest17616-21munin-run12:10:013
5966992927,1cyclictest6881-21http09:30:002
596699290,28cyclictest0-21swapper/209:40:152
596699290,1cyclictest0-21swapper/207:25:032
5964992926,2cyclictest1902-21dump-pmu-power08:10:010
5964992926,2cyclictest1902-21dump-pmu-power08:10:010
596999280,28cyclictest32546-21apt-get09:15:133
596999280,1cyclictest0-21swapper/309:30:003
5966992827,1cyclictest9799-21munin-run10:45:022
5966992826,1cyclictest0-21swapper/209:15:132
596699280,27cyclictest0-21swapper/212:30:142
596699280,0cyclictest6211-21apt-get07:10:122
596699280,0cyclictest0-21swapper/209:00:122
596699280,0cyclictest0-21swapper/207:20:142
5965992828,0cyclictest0-21swapper/111:45:131
5965992828,0cyclictest0-21swapper/110:45:121
5965992828,0cyclictest0-21swapper/107:40:131
596599280,28cyclictest0-21swapper/110:05:131
596599280,28cyclictest0-21swapper/107:55:141
596599280,28cyclictest0-21swapper/107:25:171
5964992828,0cyclictest0-21swapper/011:00:140
5964992827,0cyclictest0-21swapper/011:40:140
5964992826,1cyclictest29635-21cron08:00:010
596499280,28cyclictest0-21swapper/011:50:150
596499280,0cyclictest18198-21apt-get07:35:130
5969992727,0cyclictest0-21swapper/311:40:153
5969992727,0cyclictest0-21swapper/311:10:123
5969992727,0cyclictest0-21swapper/310:10:123
5969992727,0cyclictest0-21swapper/308:15:023
5969992727,0cyclictest0-21swapper/307:35:143
596999270,0cyclictest9796-21perf10:45:023
5966992727,0cyclictest21692-21apt-get11:10:122
5966992727,0cyclictest18594-21apt-get08:45:122
5966992727,0cyclictest0-21swapper/207:30:152
5966992726,0cyclictest28430-21apt-get10:15:132
5965992727,0cyclictest0-21swapper/110:50:131
5965992726,1cyclictest0-21swapper/109:35:121
5965992726,0cyclictest0-21swapper/107:10:121
596599270,27cyclictest0-21swapper/108:05:021
596599270,0cyclictest0-21swapper/109:05:131
596599270,0cyclictest0-21swapper/108:45:131
596599270,0cyclictest0-21swapper/108:39:531
5964992727,0cyclictest0-21swapper/011:10:130
5964992727,0cyclictest0-21swapper/009:05:120
5964992727,0cyclictest0-21swapper/008:45:130
5964992726,1cyclictest0-21swapper/012:10:120
5964992726,0cyclictest0-21swapper/009:00:110
596499270,0cyclictest0-21swapper/011:45:130
596499270,0cyclictest0-21swapper/011:05:130
596499270,0cyclictest0-21swapper/007:15:130
5969992626,0cyclictest10056-21apt-get10:45:123
5969992626,0cyclictest0-21swapper/311:45:143
5969992626,0cyclictest0-21swapper/311:25:013
5969992625,1cyclictest27615-21apt-get07:55:133
5966992626,0cyclictest0-21swapper/212:10:012
5966992626,0cyclictest0-21swapper/208:25:132
5966992624,1cyclictest4223-21idleruntime-cro08:15:022
5966992624,1cyclictest28413-21munin-run11:25:022
5965992626,0cyclictest25030-21perf07:50:001
5965992626,0cyclictest0-21swapper/111:50:161
5965992625,1cyclictest30226-21apt-get09:10:121
5965992623,2cyclictest5578-21cron11:45:001
5964992626,0cyclictest6211-21apt-get07:10:120
5964992626,0cyclictest20650-21apt-get07:40:120
5964992626,0cyclictest12380-21apt-get10:50:130
5964992626,0cyclictest0-21swapper/012:30:140
5964992626,0cyclictest0-21swapper/007:30:140
5964992625,1cyclictest28166-21perf10:15:010
5969992525,0cyclictest0-21swapper/309:05:123
5969992525,0cyclictest0-21swapper/307:25:163
5966992525,0cyclictest0-21swapper/210:45:132
5966992525,0cyclictest0-21swapper/207:35:142
5966992524,1cyclictest0-21swapper/211:40:152
5965992525,0cyclictest0-21swapper/110:40:131
5965992525,0cyclictest0-21swapper/109:00:121
5965992525,0cyclictest0-21swapper/109:00:011
5965992524,0cyclictest8530-21apt-get07:15:121
5965992523,1cyclictest307-21systemd-journal11:25:021
5965992523,1cyclictest2482-21apt-get09:20:121
5964992525,0cyclictest0-21swapper/011:55:130
5969992424,0cyclictest0-21swapper/312:30:153
5969992424,0cyclictest0-21swapper/310:05:143
5969992424,0cyclictest0-21swapper/308:45:123
5969992424,0cyclictest0-21swapper/308:05:013
5969992424,0cyclictest0-21swapper/307:40:143
5969992422,1cyclictest9812-21apt-get09:35:113
5966992424,0cyclictest0-21swapper/211:45:142
5966992424,0cyclictest0-21swapper/210:10:112
5966992423,1cyclictest27903-21apt-get09:05:132
5965992422,1cyclictest0-21swapper/109:15:111
5964992424,0cyclictest0-21swapper/010:35:130
5964992423,1cyclictest30483-21cron10:20:010
5964992423,1cyclictest26921-21munin-run12:30:000
5966992323,0cyclictest0-21swapper/208:39:532
5966992322,1cyclictest23789-21apt-get10:05:132
5966992321,1cyclictest32004-21perf08:05:012
5965992322,0cyclictest13229-21apt-get12:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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