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2026-03-10 - 09:46
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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 Tue Mar 10, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41889942236179,17sleep40-21swapper/419:09:204
41868782233177,44sleep30-21swapper/319:06:473
41889952227171,18sleep50-21swapper/519:09:215
41890312226171,43sleep10-21swapper/119:09:511
41889582220167,42sleep60-21swapper/619:08:516
41868682216186,19sleep20-21swapper/219:06:382
41869132215185,19sleep00-21swapper/019:07:170
41867902209176,21sleep70-21swapper/719:05:317
4189284993230,1cyclictest16450irq/4-ttyS019:40:007
4189259993230,1cyclictest698-21in:imuxsock19:15:020
4189284993127,3cyclictest66413-21cron21:20:007
4189284993125,5cyclictest91490-21unin-run22:05:027
4189284993125,5cyclictest91490-21unin-run22:05:017
4189282993128,2cyclictest102215-21dump-pmu-power22:25:016
418926999310,30cyclictest153898-21latency_hist00:00:002
4189279993028,1cyclictest53330-21apt-get20:58:045
4189279993028,1cyclictest1-21systemd20:40:005
4189279993027,2cyclictest1-21systemd22:10:015
418927999300,2cyclictest96802-21cron22:15:015
418927999300,2cyclictest159290-21turbostat.cron00:10:005
418927999300,29cyclictest88481-21apt22:00:015
418927799300,2cyclictest60785-21dump-pmu-power21:10:004
418926999300,29cyclictest170321-21sh00:30:012
418925999300,29cyclictest63464-21sh21:15:010
4189284992928,0cyclictest0-21swapper/719:13:037
4189284992927,1cyclictest121950-21apt-get23:03:047
4189284992927,1cyclictest0-21swapper/723:23:037
4189284992925,3cyclictest44477-21base6420:40:017
418928499290,28cyclictest110354-21apt-config22:40:027
418928499290,28cyclictest0-21swapper/723:55:027
418928499290,28cyclictest0-21swapper/722:08:047
418928499290,1cyclictest151809-21apt-get23:58:037
4189282992929,0cyclictest0-21swapper/620:20:016
4189282992927,1cyclictest278-21plymouthd21:05:006
4189282992927,1cyclictest121313-21munin-run23:00:026
4189282992927,1cyclictest0-21swapper/619:58:056
418928299290,28cyclictest0-21swapper/623:23:036
418928299290,28cyclictest0-21swapper/600:08:036
418928299290,1cyclictest0-21swapper/623:45:016
418928299290,1cyclictest0-21swapper/621:45:006
4189279992926,2cyclictest28212-21latency_hist20:10:015
418927999290,28cyclictest0-21swapper/519:13:035
418927999290,1cyclictest50059-21systemd-run20:50:015
4189277992927,1cyclictest0-21swapper/422:00:024
418927799290,28cyclictest159302-21munin-run00:10:014
418927799290,1cyclictest9370-21apt19:35:004
418927799290,1cyclictest0-21swapper/422:33:034
418927399290,29cyclictest0-21swapper/321:05:013
418927399290,28cyclictest0-21swapper/322:38:023
418927399290,28cyclictest0-21swapper/322:08:033
4189269992927,1cyclictest278-21plymouthd19:45:012
418926999290,28cyclictest0-21swapper/220:58:042
418926999290,1cyclictest0-21swapper/222:25:022
4189264992927,1cyclictest80148-21cron21:45:001
4189264992927,1cyclictest0-21swapper/122:48:031
418926499290,28cyclictest0-21swapper/120:13:031
4189259992928,1cyclictest0-21swapper/022:43:030
418925999290,28cyclictest0-21swapper/020:38:030
418925999290,28cyclictest0-21swapper/020:18:040
418925999290,28cyclictest0-21swapper/019:43:020
418925999290,1cyclictest0-21swapper/023:35:010
418925999290,1cyclictest0-21swapper/023:20:020
418928499280,28cyclictest85576-21apt-key21:55:017
418928499280,28cyclictest85576-21apt-key21:55:017
418928499280,1cyclictest0-21swapper/720:23:077
418928299280,28cyclictest146176-21apt-get23:48:046
418928299280,28cyclictest0-21swapper/619:43:026
4189279992827,1cyclictest0-21swapper/523:55:025
4189279992826,1cyclictest681-21dbus-daemon21:30:005
418927999280,28cyclictest0-21swapper/521:40:015
418927999280,27cyclictest0-21swapper/522:35:015
418927999280,27cyclictest0-21swapper/520:18:035
418927999280,1cyclictest12700-21apt-get19:43:035
4189277992824,3cyclictest369-21systemd-journal20:20:004
418927799280,27cyclictest0-21swapper/421:48:044
418927399280,28cyclictest0-21swapper/323:45:023
418927399280,28cyclictest0-21swapper/321:58:043
418927399280,28cyclictest0-21swapper/320:20:003
418927399280,28cyclictest0-21swapper/300:18:033
418927399280,28cyclictest0-21swapper/300:08:043
418927399280,28cyclictest0-21swapper/300:03:043
418927399280,1cyclictest0-21swapper/319:23:043
418927399280,0cyclictest0-21swapper/320:55:013
4189269992827,1cyclictest0-21swapper/223:43:022
4189269992827,1cyclictest0-21swapper/219:58:042
4189269992827,0cyclictest0-21swapper/220:43:052
418926999280,0cyclictest0-21swapper/221:08:022
4189264992827,1cyclictest0-21swapper/123:08:041
4189264992826,1cyclictest0-21swapper/100:03:041
418926499280,28cyclictest0-21swapper/123:58:021
418926499280,27cyclictest0-21swapper/122:38:041
418926499280,0cyclictest0-21swapper/123:43:021
418926499280,0cyclictest0-21swapper/121:58:031
418926499280,0cyclictest0-21swapper/120:53:041
4189259992828,0cyclictest0-21swapper/020:58:040
4189259992828,0cyclictest0-21swapper/019:33:040
4189259992827,1cyclictest0-21swapper/020:10:000
4189259992826,1cyclictest86423-21apt-get21:58:030
4189259992825,2cyclictest369-21systemd-journal20:45:010
418925999280,28cyclictest0-21swapper/022:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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