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2026-03-25 - 12:57
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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 Wed Mar 25, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15006722238180,20sleep10-21swapper/119:08:381
15007522228170,20sleep30-21swapper/319:09:443
15007152225172,18sleep50-21swapper/519:09:145
15007082220190,19sleep70-21swapper/719:09:087
14985802218190,18sleep40-21swapper/419:06:234
14985622214170,35sleep60-21swapper/619:06:106
15007692206177,19sleep00-21swapper/019:09:580
14986892205177,18sleep20-21swapper/219:07:582
150100699360,4cyclictest1-21systemd23:00:023
1501001993426,7cyclictest369-21systemd-journal23:30:001
150100199340,29cyclictest0-21swapper/100:25:011
150100899330,1cyclictest1610017-21sh22:30:024
1501001993327,5cyclictest0-21swapper/120:40:011
1501014993231,1cyclictest0-21swapper/621:35:016
150100199320,1cyclictest0-21swapper/121:43:001
1500997993232,0cyclictest0-21swapper/019:15:010
150101299313,28cyclictest0-21swapper/500:00:005
1501008993127,4cyclictest0-21swapper/423:00:024
150100899310,30cyclictest369-21systemd-journal20:55:014
150100899310,30cyclictest0-21swapper/419:48:024
150100899310,28cyclictest0-21swapper/419:13:034
150100199310,30cyclictest0-21swapper/119:20:001
150101499300,29cyclictest1591536-21apt-get21:58:016
1501008993028,1cyclictest1561674-21apt-get21:03:004
1501008993026,3cyclictest0-21swapper/400:25:014
1501008993025,4cyclictest0-21swapper/419:20:014
150100899300,29cyclictest369-21systemd-journal23:50:014
1501006993027,2cyclictest369-21systemd-journal21:10:013
1501006993025,4cyclictest278-21plymouthd00:25:013
1501003993026,3cyclictest1542831-21taskset20:28:012
150100399300,30cyclictest1658495-21sh00:00:012
150100399300,2cyclictest1520445-21idleruntime-cro19:45:012
150100399300,29cyclictest0-21swapper/223:13:022
1501001993026,3cyclictest369-21systemd-journal20:30:001
150100199300,29cyclictest278-21plymouthd20:15:011
150100199300,29cyclictest1593611-21munin-run22:00:021
150100199300,29cyclictest1542241-21systemd-run20:25:011
1500997993028,1cyclictest0-21swapper/000:05:010
1501017992927,1cyclictest0-21swapper/721:08:037
150101799290,28cyclictest0-21swapper/722:38:037
150101799290,28cyclictest0-21swapper/722:03:027
150101799290,28cyclictest0-21swapper/721:28:027
1501014992928,1cyclictest1-21systemd19:50:006
150101499290,28cyclictest0-21swapper/623:53:006
150101499290,28cyclictest0-21swapper/622:53:006
150101499290,28cyclictest0-21swapper/622:13:026
1501012992928,1cyclictest0-21swapper/521:05:005
1501012992927,1cyclictest1678564-21gmain00:35:025
1501012992927,1cyclictest1670491-21apt-get00:23:025
1501012992927,1cyclictest1585538-21debian-sa121:45:015
150101299290,28cyclictest1577822-21apt-get21:33:025
150101299290,1cyclictest278-21plymouthd20:05:015
150101299290,1cyclictest1550263-21apt20:40:005
1501008992927,2cyclictest0-21swapper/421:43:014
1501008992922,6cyclictest1642326-21cron23:30:014
150100899290,28cyclictest0-21swapper/423:20:024
150100899290,28cyclictest0-21swapper/421:53:024
1501006992927,1cyclictest0-21swapper/320:50:003
150100699290,28cyclictest0-21swapper/323:30:013
150100699290,28cyclictest0-21swapper/321:28:023
150100699290,1cyclictest0-21swapper/322:50:023
1501003992928,1cyclictest0-21swapper/220:13:022
150100399290,28cyclictest1537439-21apt-get20:18:052
150100399290,1cyclictest1-21systemd20:40:012
150100399290,1cyclictest0-21swapper/221:50:022
150100199290,28cyclictest0-21swapper/122:43:021
150100199290,28cyclictest0-21swapper/122:38:031
150100199290,28cyclictest0-21swapper/122:25:021
150100199290,28cyclictest0-21swapper/121:48:011
150100199290,28cyclictest0-21swapper/121:18:011
150100199290,28cyclictest0-21swapper/119:55:011
1500997992928,1cyclictest0-21swapper/000:35:010
150099799291,28cyclictest1-21systemd23:10:020
150099799290,29cyclictest221rcuc/000:35:020
150099799290,29cyclictest1585542-21sh21:45:000
150099799290,1cyclictest0-21swapper/022:38:020
1501017992826,1cyclictest1626177-21munin-run23:00:027
150101799280,0cyclictest0-21swapper/720:48:017
1501014992827,1cyclictest761rcuc/622:40:026
1501014992827,1cyclictest0-21swapper/620:13:016
1501014992827,1cyclictest0-21swapper/620:05:016
1501014992827,1cyclictest0-21swapper/619:13:026
1501014992827,1cyclictest0-21swapper/600:35:016
150101499280,28cyclictest1515641-21apt-get19:38:026
150101499280,28cyclictest0-21swapper/623:10:026
150101499280,28cyclictest0-21swapper/621:53:026
150101499280,28cyclictest0-21swapper/621:00:006
150101299280,28cyclictest0-21swapper/523:53:025
150101299280,28cyclictest0-21swapper/523:25:015
150101299280,28cyclictest0-21swapper/521:55:015
150101299280,0cyclictest0-21swapper/500:16:365
1501008992827,1cyclictest0-21swapper/419:58:014
1501008992825,2cyclictest369-21systemd-journal21:00:014
1501008992823,4cyclictest1-21systemd20:40:004
150100899280,27cyclictest0-21swapper/422:23:024
150100899280,1cyclictest1571816-21munin-run21:20:014
1501006992825,2cyclictest0-21swapper/323:40:013
1501006992824,4cyclictest0-21swapper/321:35:013
150100699280,28cyclictest0-21swapper/322:25:013
150100699280,0cyclictest0-21swapper/322:28:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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