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2026-05-11 - 09:56
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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 rack8slot4.osadl.org (updated Mon May 11, 2026 00:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5241682236175,19sleep30-21swapper/319:06:263
5242862227166,19sleep70-21swapper/719:08:077
5244012225170,18sleep10-21swapper/119:09:461
5243552216187,19sleep20-21swapper/219:09:072
5243262215185,20sleep00-21swapper/019:08:410
5243142211182,19sleep60-21swapper/619:08:316
5220592211183,18sleep40-21swapper/419:05:064
5243022200171,19sleep50-21swapper/519:08:225
6367772800,1sleep681-21ksoftirqd/622:30:016
52465299430,2cyclictest0-21swapper/422:15:024
52465299370,31cyclictest597774-21cron21:20:014
52465299350,29cyclictest594980-21cron21:15:014
52464699340,32cyclictest595425-21apt-get21:15:162
524654993231,1cyclictest0-21swapper/522:45:015
524652993227,4cyclictest645148-21cron22:45:014
52465299320,31cyclictest0-21swapper/421:25:134
52464699320,31cyclictest620036-21cron22:00:012
52465899310,30cyclictest0-21swapper/721:30:167
52465899310,30cyclictest0-21swapper/721:20:137
52465899310,1cyclictest612144-21apt-get21:45:147
524657993126,4cyclictest631632-21apt-get22:20:166
52465799310,1cyclictest0-21swapper/620:20:016
524652993127,3cyclictest572964-21latency_hist20:35:024
524652993126,1cyclictest856-21dbus-daemon22:40:014
52465299310,30cyclictest567557-21apt-get20:25:144
52465299310,30cyclictest567557-21apt-get20:25:144
52465299310,30cyclictest0-21swapper/421:35:154
52465299310,30cyclictest0-21swapper/421:30:164
52465899300,29cyclictest0-21swapper/722:55:147
52465899300,1cyclictest690170-21apt-get00:05:157
524657993029,1cyclictest617312-21921:55:026
524657993027,3cyclictest553167-21sqv20:00:016
524652993027,2cyclictest681406-21appstreamcli23:50:024
52464899301,1cyclictest0-21swapper/319:30:013
52464899300,29cyclictest0-21swapper/320:10:013
52464699300,29cyclictest534031-21apt-get19:25:162
52464699300,29cyclictest0-21swapper/223:15:152
52464699300,29cyclictest0-21swapper/220:55:132
524637993028,1cyclictest706467-21cron00:35:000
52463799300,29cyclictest0-21swapper/020:05:010
524658992927,2cyclictest290-21plymouthd22:45:147
524658992927,1cyclictest684192-21923:55:007
52465899290,28cyclictest673407-21apt-get23:35:167
52465899290,28cyclictest0-21swapper/721:35:147
52465899290,28cyclictest0-21swapper/720:00:047
52465899290,28cyclictest0-21swapper/719:25:167
52465899290,28cyclictest0-21swapper/700:00:147
52465899290,1cyclictest5731572sleep720:35:157
524657992928,1cyclictest662270-21apt-get23:15:156
524657992927,1cyclictest0-21swapper/623:50:036
52465799290,28cyclictest640003-21apt-get22:35:156
52465799290,28cyclictest595425-21apt-get21:15:156
52465799290,28cyclictest0-21swapper/623:10:136
52465799290,28cyclictest0-21swapper/622:40:126
52465799290,28cyclictest0-21swapper/621:20:146
52465799290,28cyclictest0-21swapper/621:05:166
52465799290,1cyclictest622887-21922:05:026
52465799290,1cyclictest584281-21apt-get20:55:146
52465799290,1cyclictest547974-21apt-get19:50:136
52465499290,28cyclictest642410-21922:40:015
52465499290,28cyclictest0-21swapper/523:15:145
52465499290,1cyclictest527682-21cut19:15:015
524652992928,1cyclictest0-21swapper/423:25:114
52465299290,29cyclictest709985-21cron00:40:014
52465299290,28cyclictest564769-21apt-get20:20:144
52464899290,29cyclictest578286-21cron20:45:013
52464899290,28cyclictest653934-21apt-get23:00:153
52464899290,28cyclictest542422-21apt-get19:40:143
52464899290,28cyclictest0-21swapper/323:40:163
52464899290,28cyclictest0-21swapper/322:20:163
52464899290,28cyclictest0-21swapper/321:05:163
52464899290,28cyclictest0-21swapper/320:10:143
52464899290,28cyclictest0-21swapper/300:35:133
524646992928,1cyclictest0-21swapper/200:35:012
524646992925,3cyclictest617261-21cron21:55:012
52464699290,29cyclictest634001-21awk22:25:012
52464699290,28cyclictest581502-21apt-get20:50:132
52464699290,28cyclictest0-21swapper/223:30:142
52464699290,28cyclictest0-21swapper/220:10:142
52464699290,1cyclictest0-21swapper/200:35:142
524642992928,1cyclictest692943-21apt-get00:10:141
524642992927,1cyclictest578342-21920:45:011
524642992927,1cyclictest0-21swapper/122:55:141
524642992927,1cyclictest0-21swapper/120:35:011
52464299290,28cyclictest0-21swapper/122:45:131
52464299290,28cyclictest0-21swapper/121:30:011
52464299290,28cyclictest0-21swapper/120:45:151
52464299290,28cyclictest0-21swapper/119:30:151
52464299290,28cyclictest0-21swapper/119:25:151
52463799290,28cyclictest698561-21apt-get00:20:140
52463799290,28cyclictest0-21swapper/022:15:140
52463799290,28cyclictest0-21swapper/020:20:120
52463799290,28cyclictest0-21swapper/020:15:140
52463799290,28cyclictest0-21swapper/000:25:150
52463799290,1cyclictest681374-21sqv23:50:000
524658992828,0cyclictest0-21swapper/700:35:137
524658992827,1cyclictest550311-21cron19:55:017
52465899280,28cyclictest673018-21923:35:017
52465899280,27cyclictest0-21swapper/720:40:147
52465899280,27cyclictest0-21swapper/719:20:137
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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