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2026-06-26 - 08:52
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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 Jun 26, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21582432231173,18sleep70-21swapper/719:07:177
21581192218158,19sleep50-21swapper/519:05:305
21581682214186,18sleep60-21swapper/619:06:116
21583412213185,18sleep10-21swapper/119:08:401
21584342211182,19sleep00-21swapper/019:10:000
21581452210181,19sleep30-21swapper/319:05:523
21581912206176,20sleep20-21swapper/219:06:322
21584092204176,18sleep40-21swapper/419:09:394
2158682993732,4cyclictest279850-21systemd-journal00:15:012
215869499360,35cyclictest2324580-21cron00:10:016
2158682993633,2cyclictest81350irq/125-eno100:20:012
215869499340,1cyclictest0-21swapper/600:40:016
215869899330,32cyclictest2247568-21/usr/sbin/munin21:50:047
2158686993327,5cyclictest2176812-21munin-run19:45:014
2158686993326,7cyclictest0-21swapper/419:40:024
215868499330,33cyclictest2263314-21922:20:013
215867999330,32cyclictest0-21swapper/121:20:011
2158677993328,4cyclictest2227345-21apt-get21:15:020
215867799330,31cyclictest2221322-21cron21:05:010
2158694993227,4cyclictest0-21swapper/600:00:016
215869499320,4cyclictest2207896-21latency_hist20:40:006
215869499320,1cyclictest0-21swapper/600:15:036
2158686993226,5cyclictest2333372-21apt-get00:25:034
215868699320,0cyclictest0-21swapper/400:00:084
215868499320,31cyclictest2232525-21cron21:25:013
215868299320,31cyclictest2250833-21/usr/sbin/munin21:55:072
215868299320,31cyclictest2250833-21/usr/sbin/munin21:55:072
2158677993227,4cyclictest2338501-21idleruntime-cro00:35:010
215867799320,31cyclictest2207857-21sed20:40:010
2158698993127,3cyclictest856-21dbus-daemon23:55:017
215869899310,28cyclictest0-21swapper/700:20:047
215869899310,0cyclictest0-21swapper/723:55:037
215869499310,31cyclictest0-21swapper/619:45:016
215869499310,27cyclictest0-21swapper/619:55:036
2158686993127,3cyclictest2179539-21cron19:50:014
2158684993129,1cyclictest2255724-21cat22:05:063
2158684993129,1cyclictest2255724-21cat22:05:063
215868499310,30cyclictest966-21rs:main3
215867999310,30cyclictest1-21systemd23:05:011
215867799310,30cyclictest2332987-21900:25:010
2158698993028,1cyclictest0-21swapper/722:50:047
2158698993025,4cyclictest290-21plymouthd23:50:017
215869899300,29cyclictest0-21swapper/723:05:047
215869899300,29cyclictest0-21swapper/720:45:017
2158694993027,3cyclictest0-21swapper/620:00:026
215869499300,29cyclictest2255334-21apt-get22:05:046
215869499300,29cyclictest2255334-21apt-get22:05:046
215869499300,28cyclictest0-21swapper/600:25:036
215869499300,0cyclictest0-21swapper/623:15:016
2158689993029,1cyclictest1-21systemd22:35:015
2158689993028,1cyclictest2330147-21cron00:20:015
2158686993029,1cyclictest0-21swapper/423:15:014
2158686993028,2cyclictest2325010-21apt-get00:10:044
2158686993028,1cyclictest0-21swapper/422:55:014
2158686993027,3cyclictest0-21swapper/419:50:034
2158686993026,4cyclictest0-21swapper/400:20:014
215868699300,1cyclictest0-21swapper/420:00:024
2158682993028,1cyclictest0-21swapper/223:55:032
2158682993028,1cyclictest0-21swapper/221:55:012
2158682993027,2cyclictest2321819-21munin-run00:05:012
215868299300,29cyclictest2161456-21sed19:15:022
215867999300,30cyclictest0-21swapper/121:45:011
215867999300,29cyclictest0-21swapper/122:50:041
215867999300,29cyclictest0-21swapper/119:30:011
215867799300,29cyclictest2303050-21expr23:30:020
215867799300,29cyclictest2293860-21unix_chkpwd23:15:010
215867799300,29cyclictest2215790-21cron20:55:010
2158698992927,2cyclictest1-21systemd23:25:027
215869899290,28cyclictest0-21swapper/720:30:037
215869899290,0cyclictest0-21swapper/719:55:037
2158694992927,1cyclictest2302321-21apt-get23:30:016
215869499290,1cyclictest2218528-21cron21:00:016
2158689992928,1cyclictest2330596-21apt-get00:20:045
2158689992927,1cyclictest0-21swapper/519:50:015
2158689992924,4cyclictest2272031-21chrt22:35:035
215868999290,28cyclictest0-21swapper/523:15:035
215868999290,28cyclictest0-21swapper/522:05:055
215868999290,28cyclictest0-21swapper/522:05:055
215868999290,28cyclictest0-21swapper/520:55:025
215868999290,28cyclictest0-21swapper/519:35:045
215868999290,1cyclictest2319462-21apt-get00:00:085
215868999290,1cyclictest0-21swapper/521:50:015
2158686992927,1cyclictest0-21swapper/419:25:034
215868699290,28cyclictest2255294-21tar22:05:034
215868699290,28cyclictest2255294-21tar22:05:034
215868699290,28cyclictest0-21swapper/421:40:064
215868699290,28cyclictest0-21swapper/420:25:024
215868499290,29cyclictest2311056-21apt-get23:45:033
215868499290,28cyclictest0-21swapper/323:40:023
215868499290,28cyclictest0-21swapper/320:15:033
215868299290,29cyclictest0-21swapper/221:40:062
215868299290,28cyclictest0-21swapper/223:55:012
215868299290,28cyclictest0-21swapper/220:40:032
215868299290,28cyclictest0-21swapper/220:35:032
215868299290,28cyclictest0-21swapper/220:05:032
215868299290,28cyclictest0-21swapper/200:20:042
215868299290,1cyclictest2288364-21923:05:012
215868299290,1cyclictest2229702-21apt-get21:20:042
2158679992924,4cyclictest279850-21systemd-journal00:00:011
215867999290,29cyclictest0-21swapper/121:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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