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2026-05-24 - 02:48
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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 May 24, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5308912226164,19sleep60-21swapper/619:05:586
5311142220160,19sleep20-21swapper/219:09:072
5309262218158,19sleep30-21swapper/319:06:273
5309362215185,19sleep40-21swapper/419:06:374
5311282214184,19sleep70-21swapper/719:09:217
5310752214185,19sleep10-21swapper/119:08:351
5311302213184,19sleep00-21swapper/019:09:220
5310522212184,18sleep50-21swapper/519:08:145
53141599550,54cyclictest0-21swapper/123:50:011
531436995246,5cyclictest290-21plymouthd23:50:017
53142199350,31cyclictest1-21systemd20:35:023
53142799340,32cyclictest632344-21sh22:10:015
53142199330,28cyclictest0-21swapper/319:40:123
53142199330,28cyclictest0-21swapper/319:40:123
53141799330,32cyclictest576609-21awk20:30:012
531421993229,3cyclictest0-21swapper/323:50:013
531421993227,4cyclictest703223-21latency_hist00:15:023
53141599320,31cyclictest107-21kcompactd020:47:461
53141399320,31cyclictest641009-21tar22:25:010
53142199310,30cyclictest0-21swapper/323:55:123
53142199310,0cyclictest290-21plymouthd00:07:533
53141799310,30cyclictest534088-21dump-pmu-power19:15:012
531415993126,4cyclictest621218-21true21:50:011
53141599310,30cyclictest540821-21apt-get19:25:111
53143699300,29cyclictest0-21swapper/720:25:117
531431993027,3cyclictest587723-21apt-get20:50:056
53143199300,29cyclictest0-21swapper/621:10:116
53142499300,29cyclictest638362-21apt-get22:20:124
53142199300,29cyclictest0-21swapper/323:10:113
53142199300,28cyclictest0-21swapper/300:20:393
531417993028,2cyclictest714098-21munin-run00:35:022
531417993025,4cyclictest596091-21cron21:05:012
53141799300,30cyclictest565440-21cron20:10:012
53141599300,29cyclictest640749-21sqv22:25:011
53141399300,29cyclictest706191-21apt-get00:20:130
53141399300,29cyclictest545937-21unix_chkpwd19:35:010
53141399300,29cyclictest0-21swapper/000:36:150
531436992928,1cyclictest669046-21apt-get23:15:137
531436992928,1cyclictest669046-21apt-get23:15:127
531436992927,1cyclictest0-21swapper/720:40:107
53143699290,29cyclictest1-21systemd21:20:017
53143699290,28cyclictest0-21swapper/722:55:127
53143699290,28cyclictest0-21swapper/721:50:107
53143699290,28cyclictest0-21swapper/720:50:117
53143699290,28cyclictest0-21swapper/700:20:127
53143699290,28cyclictest0-21swapper/700:00:027
531431992928,1cyclictest0-21swapper/620:45:126
53143199290,28cyclictest0-21swapper/622:30:116
53143199290,28cyclictest0-21swapper/622:10:116
53143199290,1cyclictest714560-21apt-get00:35:136
53142799290,28cyclictest5825922sleep520:40:095
53142799290,28cyclictest1-21systemd19:50:015
53142799290,28cyclictest0-21swapper/523:05:045
53142799290,28cyclictest0-21swapper/521:45:155
53142799290,28cyclictest0-21swapper/519:35:115
53142799290,28cyclictest0-21swapper/519:35:115
53142799290,28cyclictest0-21swapper/500:35:135
53142799290,28cyclictest0-21swapper/500:02:555
53142799290,1cyclictest676951-21cron23:30:015
531424992928,1cyclictest0-21swapper/422:12:424
531424992928,0cyclictest0-21swapper/400:15:034
531424992927,1cyclictest674623-21apt-get23:25:114
531424992927,1cyclictest290-21plymouthd00:00:004
531424992927,1cyclictest0-21swapper/422:05:134
531424992927,1cyclictest0-21swapper/420:05:104
531424992927,1cyclictest0-21swapper/419:55:114
531424992927,1cyclictest0-21swapper/400:25:114
531424992927,1cyclictest0-21swapper/400:10:124
53142499290,28cyclictest1-21systemd23:20:014
53142499290,28cyclictest1-21systemd23:20:014
53142499290,28cyclictest0-21swapper/423:30:144
53142499290,28cyclictest0-21swapper/421:05:124
53142499290,28cyclictest0-21swapper/421:00:104
53142499290,28cyclictest0-21swapper/420:55:114
53142499290,28cyclictest0-21swapper/419:50:114
53142499290,1cyclictest623961-21apt-get21:55:044
53142499290,1cyclictest1-21systemd20:40:024
53142499290,1cyclictest0-21swapper/419:35:014
53142499290,1cyclictest0-21swapper/400:35:124
531421992928,1cyclictest708969-21apt-get00:25:123
531421992928,1cyclictest582589-21apt-get20:40:103
531421992925,3cyclictest537577-21unix_chkpwd19:20:013
53142199290,28cyclictest0-21swapper/322:35:013
53142199290,28cyclictest0-21swapper/321:50:113
53142199290,28cyclictest0-21swapper/320:15:123
531417992928,1cyclictest0-21swapper/219:25:012
531417992926,3cyclictest693838-21/usr/sbin/munin00:00:012
53141799290,29cyclictest0-21swapper/223:34:562
53141799290,29cyclictest0-21swapper/222:55:012
53141799290,28cyclictest0-21swapper/221:45:152
53141799290,28cyclictest0-21swapper/220:10:102
53141799290,28cyclictest0-21swapper/200:00:052
53141799290,1cyclictest585370-21apt-get20:45:132
531415992927,1cyclictest624368-21cut21:55:011
531415992927,1cyclictest0-21swapper/123:00:111
531415992927,1cyclictest0-21swapper/100:15:011
53141599290,29cyclictest657877-21apt-get22:55:121
53141599290,29cyclictest290-21plymouthd21:20:021
53141599290,28cyclictest543600-21apt-get19:30:111
53141599290,28cyclictest0-21swapper/121:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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