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2025-12-22 - 04:15
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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 rack5slot2.osadl.org (updated Mon Dec 22, 2025 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45052234220,10sleep10-21swapper/119:06:341
47452191175,12sleep00-21swapper/019:09:420
46862185169,11sleep30-21swapper/319:08:563
46132176159,13sleep20-21swapper/219:08:002
239602450,1sleep023963-21cpuspeed20:50:130
194652440,0sleep019468-21idleruntime19:35:150
49319970,6cyclictest0-21swapper/200:25:142
49319960,6cyclictest0-21swapper/223:50:132
49249960,5cyclictest0-21swapper/021:55:110
49249960,1cyclictest14598-21perl22:40:130
49359955,0cyclictest40-21ksoftirqd/300:25:003
49359950,5cyclictest0-21swapper/322:45:013
49319950,5cyclictest0-21swapper/222:30:272
49319950,5cyclictest0-21swapper/222:10:132
49259952,2cyclictest0-21swapper/120:00:091
49259951,3cyclictest0-21swapper/122:45:121
49259951,2cyclictest0-21swapper/122:50:111
49259951,2cyclictest0-21swapper/122:40:121
49259951,2cyclictest0-21swapper/121:00:131
49259951,2cyclictest0-21swapper/120:40:131
49259951,2cyclictest0-21swapper/120:20:121
49259951,1cyclictest0-21swapper/119:45:121
49249955,0cyclictest0-21swapper/023:15:000
49249950,4cyclictest0-21swapper/022:20:130
49359944,0cyclictest31148-21kworker/3:123:18:273
49359944,0cyclictest31148-21kworker/3:122:56:063
49359944,0cyclictest31148-21kworker/3:122:44:543
49359944,0cyclictest31148-21kworker/3:122:00:063
49359944,0cyclictest31148-21kworker/3:120:30:313
49359944,0cyclictest31148-21kworker/3:119:45:453
49359943,1cyclictest460-21in:imuxsock00:15:003
49359941,2cyclictest0-21swapper/322:20:123
49359941,2cyclictest0-21swapper/321:00:133
49359941,2cyclictest0-21swapper/320:40:133
49359941,1cyclictest0-21swapper/300:00:133
49359940,4cyclictest8655-21perf00:40:003
49359940,4cyclictest0-21swapper/322:35:123
49359940,4cyclictest0-21swapper/322:05:133
49359940,4cyclictest0-21swapper/320:55:133
49359940,4cyclictest0-21swapper/319:10:123
49359940,3cyclictest381rcuc/319:20:013
49359940,3cyclictest2812-21python23:20:183
49359940,3cyclictest23709-21dpkg20:50:123
49359940,3cyclictest2117-21perl00:25:163
49359940,3cyclictest11097-21cat23:40:003
49359940,3cyclictest0-21swapper/321:25:143
49359940,1cyclictest26057-21latency_hist23:05:003
49359940,1cyclictest16120-21munin-run23:50:003
49359940,1cyclictest15805-21latency_hist21:40:013
49319944,0cyclictest0-21swapper/222:48:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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