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2026-03-24 - 07:12
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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 24, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22450232234174,48sleep20-21swapper/219:07:142
22449852227195,21sleep00-21swapper/019:06:410
22449322225168,19sleep30-21swapper/319:05:553
22449452224191,21sleep70-21swapper/719:06:087
22470682220188,21sleep60-21swapper/619:08:486
22450702216184,21sleep10-21swapper/119:07:551
22471522212185,17sleep40-21swapper/419:09:594
22449432204177,17sleep50-21swapper/519:06:065
2247381995910,48cyclictest0-21swapper/321:44:153
2247387993535,0cyclictest0-21swapper/522:10:025
2247377993529,5cyclictest0-21swapper/223:40:012
2247391993430,3cyclictest0-21swapper/623:40:006
224737799340,1cyclictest2378471-21dump-pmu-power23:10:002
224737799340,0cyclictest681-21dbus-daemon22:15:012
224739199330,1cyclictest278-21plymouthd22:15:026
224739199330,1cyclictest2378472-21apt23:10:016
224737799330,28cyclictest0-21swapper/223:18:012
224739199320,31cyclictest369-21systemd-journal22:55:006
224739199320,0cyclictest0-21swapper/621:53:036
224739299310,29cyclictest2319099-21apt-get21:23:037
2247391993125,5cyclictest2305002-21munin-run20:55:016
224738199310,29cyclictest0-21swapper/319:43:033
2247392993028,1cyclictest2348077-21dump-pmu-power22:15:027
2247392993027,2cyclictest369-21systemd-journal20:15:017
2247392993027,2cyclictest2307678-21cron21:00:017
224739299300,29cyclictest2389241-21turbostat.cron23:30:017
2247391993029,0cyclictest2329282-21systemd-run21:40:016
224739199300,29cyclictest0-21swapper/620:58:046
224739199300,1cyclictest2406391-21apt-get00:03:016
224739199300,1cyclictest2397322-21cron23:45:016
224739199300,0cyclictest0-21swapper/623:18:006
2247387993027,2cyclictest369-21systemd-journal23:00:005
224738599300,29cyclictest2375776-21sh23:05:014
2247381993028,1cyclictest2247889-21apt-get19:13:033
224738199300,29cyclictest2427799-21sh00:40:013
224738199300,29cyclictest0-21swapper/319:33:003
224738199300,29cyclictest0-21swapper/300:30:013
2247377993028,1cyclictest2305624-21apt-get20:58:042
224737799300,29cyclictest2297564-21apt-get20:43:042
224737799300,0cyclictest0-21swapper/219:58:012
224736899300,29cyclictest369-21systemd-journal19:45:000
2247392992928,1cyclictest0-21swapper/723:18:017
2247392992928,1cyclictest0-21swapper/722:03:017
2247392992927,1cyclictest2264732-21apt-get19:43:027
2247392992926,2cyclictest369-21systemd-journal19:20:007
224739299290,28cyclictest2329865-21apt-get21:43:017
224739299290,28cyclictest0-21swapper/723:48:027
224739299290,28cyclictest0-21swapper/719:53:037
224739299290,1cyclictest2258703-21sh19:30:017
2247391992927,1cyclictest1-21systemd20:25:016
2247391992927,1cyclictest0-21swapper/622:10:026
224739199290,28cyclictest0-21swapper/619:17:596
224738799290,28cyclictest0-21swapper/500:05:005
224738599290,28cyclictest681-21dbus-daemon00:35:004
224738599290,28cyclictest0-21swapper/422:05:024
224738599290,28cyclictest0-21swapper/421:05:024
224738599290,28cyclictest0-21swapper/420:53:034
2247381992927,1cyclictest2356192-21awk22:30:023
2247381992927,1cyclictest2277557-21apt20:05:013
2247381992926,2cyclictest2256023-21idleruntime-cro19:25:013
224738199290,28cyclictest0-21swapper/323:13:023
224738199290,28cyclictest0-21swapper/322:53:053
224738199290,28cyclictest0-21swapper/321:13:023
224738199290,28cyclictest0-21swapper/320:30:013
224738199290,28cyclictest0-21swapper/320:30:013
224738199290,28cyclictest0-21swapper/319:48:013
224738199290,1cyclictest2294227-21sh20:35:013
224738199290,1cyclictest2294227-21sh20:35:003
2247377992928,1cyclictest0-21swapper/221:40:022
2247377992926,3cyclictest0-21swapper/200:08:002
2247377992923,6cyclictest0-21swapper/220:55:012
224737799290,28cyclictest0-21swapper/222:43:012
224737799290,28cyclictest0-21swapper/220:38:022
224737799290,28cyclictest0-21swapper/220:33:032
224737799290,28cyclictest0-21swapper/220:33:032
224737799290,1cyclictest0-21swapper/223:45:012
2247372992928,1cyclictest700-21rs:main1
224737299290,28cyclictest2313701-21apt-get21:13:031
224737299290,28cyclictest0-21swapper/119:55:011
224737299290,1cyclictest0-21swapper/120:28:041
224737299290,1cyclictest0-21swapper/120:28:031
2247368992927,1cyclictest2368073-21apt-get22:53:050
224736899290,28cyclictest0-21swapper/020:43:030
224736899290,28cyclictest0-21swapper/000:08:010
2247392992827,1cyclictest0-21swapper/720:40:027
224739299280,0cyclictest0-21swapper/700:38:017
2247391992827,1cyclictest0-21swapper/623:53:026
2247391992827,1cyclictest0-21swapper/623:50:016
2247391992827,1cyclictest0-21swapper/622:58:036
224739199280,0cyclictest0-21swapper/622:03:006
224739199280,0cyclictest0-21swapper/600:20:016
2247387992828,0cyclictest0-21swapper/521:58:025
2247387992827,1cyclictest0-21swapper/520:23:025
224738799280,28cyclictest2357047-21apt-get22:33:025
224738799280,28cyclictest0-21swapper/521:48:025
224738799280,0cyclictest0-21swapper/519:28:015
2247385992827,1cyclictest1-21systemd23:45:004
2247385992827,1cyclictest0-21swapper/422:45:014
2247385992825,2cyclictest369-21systemd-journal19:15:014
224738599280,27cyclictest0-21swapper/420:25:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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