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2026-07-05 - 08:37
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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 Jul 05, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2830272228170,18sleep20-21swapper/219:09:462
2828722228168,18sleep60-21swapper/619:07:336
2829172227162,18sleep40-21swapper/419:08:114
2830012221163,19sleep50-21swapper/519:09:255
2828112221160,19sleep10-21swapper/119:06:391
2827252215186,19sleep30-21swapper/319:05:283
2828282213184,19sleep70-21swapper/719:06:537
2829602210179,19sleep00-21swapper/019:08:470
283935994141,0cyclictest0-21swapper/421:05:014
28393799341,32cyclictest1-21systemd19:45:015
283941993328,5cyclictest0-21swapper/622:50:006
28394199330,1cyclictest0-21swapper/622:45:006
28393499330,3cyclictest346743-21cron21:05:013
28394399320,31cyclictest316477-21/usr/sbin/munin20:10:047
28394399320,31cyclictest316477-21/usr/sbin/munin20:10:037
283941993227,1cyclictest0-21swapper/623:09:586
28393799320,31cyclictest287591-21unix_chkpwd19:20:015
283934993225,6cyclictest286159-21latency_hist19:15:013
28393499320,31cyclictest435312-21apt-get23:45:013
28393499320,31cyclictest435312-21apt-get23:45:013
28392999320,31cyclictest340537-21cron20:55:021
283941993127,1cyclictest290-21plymouthd00:25:016
283934993127,3cyclictest328432-21pzem_energy20:30:093
283931993128,2cyclictest424368-21923:25:012
283931993127,3cyclictest346746-21cron21:05:012
283929993126,4cyclictest296262-21cstates19:35:011
283925993128,2cyclictest424293-21cron23:25:010
283943993028,2cyclictest357984-21fschecks_time21:25:017
283943993028,1cyclictest346797-21/usr/sbin/munin21:05:017
28394399300,29cyclictest374006-21apt-get21:55:007
28394399300,29cyclictest1-21systemd21:15:017
28394199300,29cyclictest440862-21apt-get23:54:596
28394199300,28cyclictest0-21swapper/623:00:416
28394199300,1cyclictest452005-21apt-get00:15:006
28394199300,0cyclictest0-21swapper/623:18:266
283935993028,1cyclictest312631-21apt-get20:05:004
283935993028,1cyclictest290-21plymouthd20:45:014
28393599300,29cyclictest379888-21/usr/sbin/munin22:05:014
28393599300,29cyclictest0-21swapper/400:21:524
283934993027,2cyclictest357914-21cron21:25:013
28393499300,29cyclictest293148-21apt-get19:30:013
28393499300,1cyclictest0-21swapper/321:30:043
28393199300,29cyclictest890-21systemd-logind21:30:012
283929993028,1cyclictest335577-21munin-run20:45:011
283929993025,4cyclictest380035-21922:05:021
28392999300,29cyclictest1037-21snmpd00:15:011
28392999300,29cyclictest0-21swapper/122:50:011
28392999300,0cyclictest0-21swapper/123:10:011
283925993029,1cyclictest0-21swapper/021:45:020
283943992928,1cyclictest0-21swapper/720:45:007
28394399290,29cyclictest433009-21expr23:40:017
28394399290,29cyclictest433009-21expr23:40:017
28394399290,28cyclictest107-21kcompactd021:59:237
28394399290,28cyclictest0-21swapper/720:45:037
28394399290,28cyclictest0-21swapper/719:45:007
28394399290,1cyclictest1-21systemd23:05:017
28394399290,1cyclictest0-21swapper/722:40:017
28394399290,1cyclictest0-21swapper/721:30:027
283941992928,1cyclictest0-21swapper/619:45:016
283941992927,1cyclictest0-21swapper/619:25:016
28394199290,29cyclictest377070-21grep22:00:026
28394199290,28cyclictest298712-21apt-get19:40:006
28394199290,28cyclictest0-21swapper/622:51:016
28394199290,28cyclictest0-21swapper/622:09:366
28394199290,28cyclictest0-21swapper/621:39:306
283937992929,0cyclictest0-21swapper/522:10:005
28393799290,1cyclictest369916-21/usr/sbin/munin21:45:055
28393799290,1cyclictest0-21swapper/520:42:315
283935992928,1cyclictest0-21swapper/422:25:004
283935992928,1cyclictest0-21swapper/422:00:014
283935992927,1cyclictest307060-21apt-get19:55:014
283935992927,1cyclictest0-21swapper/421:45:004
28393599290,28cyclictest0-21swapper/422:11:454
28393599290,28cyclictest0-21swapper/421:55:004
28393599290,28cyclictest0-21swapper/421:20:004
28393599290,28cyclictest0-21swapper/420:55:014
28393599290,28cyclictest0-21swapper/420:50:004
28393599290,28cyclictest0-21swapper/420:10:044
28393599290,28cyclictest0-21swapper/420:10:044
28393599290,28cyclictest0-21swapper/419:39:054
28393599290,28cyclictest0-21swapper/400:33:414
28393599290,1cyclictest435736-21cut23:45:014
28393599290,1cyclictest435736-21cut23:45:014
283934992928,1cyclictest0-21swapper/321:20:003
28393499290,28cyclictest0-21swapper/322:30:033
28393499290,28cyclictest0-21swapper/300:05:193
28393499290,1cyclictest0-21swapper/300:00:023
28393199290,28cyclictest290-21plymouthd22:50:002
28393199290,28cyclictest0-21swapper/221:35:002
28393199290,28cyclictest0-21swapper/219:13:162
283929992927,1cyclictest0-21swapper/100:25:011
28392999290,28cyclictest0-21swapper/121:55:001
28392999290,28cyclictest0-21swapper/119:37:281
28392999290,28cyclictest0-21swapper/100:20:001
28392999290,1cyclictest107-21kcompactd021:33:031
28392599290,29cyclictest0-21swapper/021:38:580
28392599290,28cyclictest0-21swapper/022:45:000
28392599290,1cyclictest390704-21apt-get22:24:590
283943992828,0cyclictest0-21swapper/700:40:017
283943992828,0cyclictest0-21swapper/700:23:297
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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