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2026-03-15 - 17:17
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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 Sun Mar 15, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22953682234180,44sleep20-21swapper/207:05:132
22955612224169,18sleep50-21swapper/507:07:575
22954132222190,20sleep00-21swapper/007:05:520
22953602217184,21sleep30-21swapper/307:05:063
22954352216186,19sleep40-21swapper/407:06:114
22954112215187,18sleep70-21swapper/707:05:517
22954692213183,19sleep60-21swapper/607:06:386
22954052213179,22sleep10-21swapper/107:05:451
229786899355,2cyclictest0-21swapper/012:05:010
2297889993427,2cyclictest2306510-21sh07:25:017
229788999342,28cyclictest16450irq/4-ttyS010:45:027
229786899340,29cyclictest278-21plymouthd09:20:010
2297873993327,5cyclictest681-21dbus-daemon10:45:021
229787399330,28cyclictest2464873-21apt-get12:18:021
2297873993223,2cyclictest681-21dbus-daemon09:50:001
229787899310,30cyclictest2399110-21latency_hist10:15:013
2297873993126,5cyclictest2352863-21gpgv08:50:011
229787399310,30cyclictest2472360-21basename12:30:011
229786899310,28cyclictest0-21swapper/009:48:030
229786899310,0cyclictest0-21swapper/008:30:010
229788999300,29cyclictest2423598-21sh11:00:017
229788999300,29cyclictest1-21systemd08:50:017
2297886993026,3cyclictest2361172-21munin-run09:05:016
229788699300,29cyclictest0-21swapper/608:10:016
229788499300,2cyclictest2347427-21apt08:40:015
229788499300,29cyclictest278-21plymouthd11:45:025
229788499300,29cyclictest2333698-21sh08:15:015
229788499300,29cyclictest0-21swapper/509:43:025
2297880993028,1cyclictest2405400-21apt-get10:28:034
229788099300,2cyclictest369-21systemd-journal12:00:024
229787899300,29cyclictest2366540-21sh09:15:013
229787899300,29cyclictest0-21swapper/310:35:023
2297875993028,1cyclictest2367169-21apt-get09:18:012
2297875993028,1cyclictest2323568-21apt-get07:58:022
229787599301,28cyclictest411ktimers/210:33:042
229787399300,29cyclictest2396425-21dump-pmu-power10:10:011
229787399300,29cyclictest2396425-21dump-pmu-power10:10:001
229787399300,29cyclictest0-21swapper/112:33:051
2297868993025,4cyclictest0-21swapper/010:45:020
229786899300,29cyclictest0-21swapper/012:33:050
229786899300,29cyclictest0-21swapper/012:18:020
2297889992928,1cyclictest16450irq/4-ttyS009:50:007
2297889992928,1cyclictest0-21swapper/707:48:017
2297889992927,1cyclictest2353707-21apt-get08:53:027
229788999290,28cyclictest0-21swapper/709:38:037
229788999290,1cyclictest0-21swapper/710:18:027
2297886992926,2cyclictest2437080-21turbostat.cron11:25:026
229788699290,28cyclictest0-21swapper/611:50:026
229788699290,28cyclictest0-21swapper/608:28:036
2297884992927,1cyclictest0-21swapper/508:35:015
229788499290,28cyclictest0-21swapper/512:38:035
229788499290,28cyclictest0-21swapper/511:03:035
229788499290,28cyclictest0-21swapper/510:45:015
229788499290,28cyclictest0-21swapper/510:38:025
2297878992927,1cyclictest681-21dbus-daemon11:00:023
2297878992927,1cyclictest2440393-21apt-get11:33:043
2297878992927,1cyclictest0-21swapper/308:25:013
229787899290,28cyclictest0-21swapper/311:55:023
229787899290,28cyclictest0-21swapper/310:40:023
229787899290,28cyclictest0-21swapper/308:58:033
229787899290,28cyclictest0-21swapper/307:45:003
229787899290,0cyclictest0-21swapper/311:43:023
2297875992927,1cyclictest2475904-21apt-get12:38:022
2297875992927,1cyclictest0-21swapper/211:13:022
229787599290,28cyclictest2301746-21apt-get07:18:022
229787599290,28cyclictest0-21swapper/208:13:032
229787599290,28cyclictest0-21swapper/208:05:012
229787599290,28cyclictest0-21swapper/207:23:032
229787599290,1cyclictest2462184-21apt-get12:13:012
229787599290,1cyclictest2461555-21turbostat.cron12:10:002
229787599290,1cyclictest2410774-21apt-get10:38:032
229787599290,1cyclictest2372563-21apt-get09:28:022
229787599290,1cyclictest0-21swapper/211:55:022
2297873992927,1cyclictest0-21swapper/110:13:021
229787399290,28cyclictest0-21swapper/111:38:051
229787399290,1cyclictest1-21systemd07:50:001
2297868992927,1cyclictest2405400-21apt-get10:28:030
229786899290,28cyclictest2437703-21apt-get11:28:000
229786899290,28cyclictest2350763-21apt-get08:48:030
229786899290,28cyclictest2307143-21apt-get07:28:010
229786899290,28cyclictest0-21swapper/011:48:030
2297889992826,1cyclictest0-21swapper/709:13:037
229788999280,28cyclictest0-21swapper/710:25:027
2297886992827,1cyclictest0-21swapper/607:38:046
2297886992826,1cyclictest278-21plymouthd09:50:016
229788699280,27cyclictest0-21swapper/608:58:046
229788699280,0cyclictest0-21swapper/607:33:036
2297884992827,1cyclictest0-21swapper/507:48:025
2297884992826,1cyclictest2408088-21apt-get10:33:045
2297884992826,1cyclictest2407502-21systemd-run10:30:025
2297884992826,1cyclictest0-21swapper/507:15:025
229788499280,28cyclictest0-21swapper/510:05:015
229788499280,28cyclictest0-21swapper/510:05:015
229788499280,28cyclictest0-21swapper/508:45:015
229788499280,1cyclictest0-21swapper/512:28:015
2297880992827,1cyclictest0-21swapper/409:13:024
229788099280,0cyclictest0-21swapper/408:25:014
2297878992827,0cyclictest0-21swapper/311:10:023
2297878992827,0cyclictest0-21swapper/309:33:033
2297878992826,1cyclictest2477962-21apt12:40:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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