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2025-11-07 - 06:12
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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 Fri Nov 07, 2025 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19535402226189,24sleep40-21swapper/419:06:444
19537032225195,18sleep50-21swapper/519:09:025
19537082224171,17sleep10-21swapper/119:09:061
19537402223190,21sleep30-21swapper/319:09:323
19536032223190,21sleep20-21swapper/219:07:382
19537352218184,21sleep70-21swapper/719:09:287
19536072217186,20sleep60-21swapper/619:07:436
19515432213185,18sleep00-21swapper/019:05:520
1953975993428,2cyclictest0-21swapper/321:55:013
195396699330,30cyclictest3820478-21systemd-journal21:55:010
1953980993232,0cyclictest0-21swapper/419:45:594
195398099322,29cyclictest0-21swapper/422:40:014
1953966993128,2cyclictest1978780-21sh19:55:000
195398999300,2cyclictest2085172-21apt23:10:006
195398999300,29cyclictest3820478-21systemd-journal00:10:006
195398999300,29cyclictest2006258-21sh20:45:006
195398499300,29cyclictest2123429-21turbostat.cron00:20:005
195398499300,28cyclictest2082966-21apt-get23:05:595
195397599300,29cyclictest3820478-21systemd-journal23:15:003
1953971993027,2cyclictest2077080-21sh22:55:002
1953966993027,3cyclictest2104330-21awk23:45:000
195399199290,28cyclictest0-21swapper/722:50:007
195398999290,28cyclictest1957710-21apt-get19:15:576
195398999290,28cyclictest0-21swapper/622:05:586
195398999290,1cyclictest2044982-21apt-get21:55:596
1953984992927,1cyclictest1968019-21munin-run19:35:005
1953984992927,1cyclictest0-21swapper/520:55:005
1953984992927,1cyclictest0-21swapper/520:55:005
1953984992926,2cyclictest1989550-21sh20:15:005
195398499290,28cyclictest0-21swapper/522:50:005
195398499290,28cyclictest0-21swapper/521:40:025
195398499290,28cyclictest0-21swapper/500:21:025
195398499290,1cyclictest2030514-21sh21:30:005
1953980992927,1cyclictest3820478-21systemd-journal00:15:004
1953980992927,1cyclictest2052586-21idleruntime-cro22:10:014
1953980992927,1cyclictest2017517-21apt-get21:05:584
195398099290,28cyclictest1965804-21apt-get19:31:024
195398099290,28cyclictest0-21swapper/423:00:584
195398099290,28cyclictest0-21swapper/421:30:594
195397599290,1cyclictest2035905-21munin-run21:40:003
1953971992929,0cyclictest0-21swapper/222:20:012
1953971992914,15cyclictest0-21swapper/200:05:012
195397199290,29cyclictest0-21swapper/220:55:002
195397199290,29cyclictest0-21swapper/220:55:002
195397199290,28cyclictest2128829-21latency_hist00:30:002
195397199290,28cyclictest0-21swapper/223:05:592
195397199290,28cyclictest0-21swapper/222:30:592
195397199290,1cyclictest0-21swapper/223:00:582
195397199290,1cyclictest0-21swapper/222:20:592
195396999290,28cyclictest0-21swapper/122:50:591
195396999290,28cyclictest0-21swapper/121:55:011
195396999290,28cyclictest0-21swapper/120:41:021
195396999290,28cyclictest0-21swapper/120:21:001
195396999290,28cyclictest0-21swapper/120:06:031
195396999290,28cyclictest0-21swapper/119:21:001
195396999290,28cyclictest0-21swapper/100:01:031
1953966992928,1cyclictest1995221-21debian-sa120:25:000
1953966992927,1cyclictest2039349-21apt-get21:46:020
1953966992927,1cyclictest0-21swapper/019:21:000
195396699290,29cyclictest2003555-21apt20:40:000
195396699290,28cyclictest0-21swapper/022:25:590
195396699290,28cyclictest0-21swapper/021:26:010
1953991992828,0cyclictest0-21swapper/723:05:597
1953991992828,0cyclictest0-21swapper/720:21:007
1953991992827,1cyclictest0-21swapper/723:45:597
1953991992827,1cyclictest0-21swapper/722:15:597
1953991992827,1cyclictest0-21swapper/721:40:027
1953991992826,1cyclictest2052617-21awk22:10:017
1953989992827,1cyclictest0-21swapper/600:01:036
1953984992826,1cyclictest2004059-21apt-get20:41:035
195398499280,27cyclictest0-21swapper/519:36:005
1953980992826,1cyclictest2077569-21apt-get22:56:004
195398099280,27cyclictest0-21swapper/420:45:594
195398099280,27cyclictest0-21swapper/420:45:594
195398099280,27cyclictest0-21swapper/400:16:034
1953975992828,0cyclictest0-21swapper/319:11:003
1953975992825,2cyclictest2003554-21idleruntime-cro20:40:003
1953975992824,3cyclictest1-21systemd00:00:003
195397599280,28cyclictest0-21swapper/320:31:013
195397599280,28cyclictest0-21swapper/320:31:013
1953971992828,0cyclictest0-21swapper/222:25:592
1953971992827,1cyclictest0-21swapper/219:56:012
1953971992826,1cyclictest430088-21rs:main2
1953971992826,1cyclictest0-21swapper/223:40:002
195397199280,27cyclictest0-21swapper/221:05:582
1953969992824,3cyclictest3820478-21systemd-journal19:15:001
195396999280,0cyclictest0-21swapper/122:20:591
1953966992827,1cyclictest0-21swapper/023:30:590
1953966992826,1cyclictest2035885-21sh21:40:000
1953966992826,1cyclictest0-21swapper/021:45:000
1953966992825,2cyclictest1976097-21apt19:50:000
1953966992824,1cyclictest201rcu_preempt20:06:030
195396699280,28cyclictest0-21swapper/020:26:000
195396699280,0cyclictest0-21swapper/019:11:000
1953989992725,1cyclictest1976106-21munin-run19:50:006
195398999270,0cyclictest0-21swapper/600:36:006
1953984992726,1cyclictest2041550-21turbostat.cron21:50:005
195398499270,0cyclictest0-21swapper/523:45:595
1953980992724,2cyclictest2049933-21basename22:05:014
1953980992724,2cyclictest1965319-21latency_hist19:30:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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