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2026-03-25 - 20:38
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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 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32177132239185,19sleep00-21swapper/007:07:500
32197572230174,42sleep40-21swapper/407:09:224
32177052228170,18sleep20-21swapper/207:07:442
32177062226173,42sleep30-21swapper/307:07:443
32175492226196,19sleep60-21swapper/607:05:316
32176362217133,18sleep70-21swapper/707:06:457
32176772212182,20sleep10-21swapper/107:07:191
32197492206176,19sleep50-21swapper/507:09:165
322004999354,30cyclictest3345811-21latency_hist11:00:017
322004299340,32cyclictest3277419-21munin-run08:55:014
322004799330,1cyclictest0-21swapper/607:20:016
322004299330,1cyclictest1-21systemd09:45:014
322004299320,28cyclictest3319213-21apt-get10:13:014
322004999310,3cyclictest3231364-21idleruntime-cro07:30:017
322004999310,29cyclictest0-21swapper/710:45:027
3220047993127,3cyclictest3384136-21apt-get12:13:016
322004799310,30cyclictest0-21swapper/610:48:016
322004799310,28cyclictest1-21systemd08:55:016
3220042993129,1cyclictest3353886-21sh11:15:024
3220037993128,2cyclictest3291132-21idleruntime-cro09:20:003
322003799310,30cyclictest3300107-21apt-get09:38:013
322003799310,29cyclictest3266646-21dump-pmu-power08:35:013
3220047993025,4cyclictest0-21swapper/611:45:026
322004799300,29cyclictest3346456-21apt-get11:03:006
322004799300,29cyclictest3313527-21latency_hist10:00:026
322004799300,0cyclictest0-21swapper/607:23:026
3220044993028,1cyclictest0-21swapper/511:25:025
322004499300,29cyclictest3394908-21apt-get12:33:015
322004499300,28cyclictest0-21swapper/509:18:025
322004299300,28cyclictest0-21swapper/407:58:014
322003799300,29cyclictest369-21systemd-journal12:10:013
322003599300,2cyclictest3228668-21sh07:25:012
322003599300,29cyclictest369-21systemd-journal11:25:022
322003599300,29cyclictest3315901-21turbostat.cron10:05:002
322003599300,29cyclictest3274737-21munin-run08:50:012
322003599300,29cyclictest0-21swapper/209:05:012
3220032993028,1cyclictest0-21swapper/112:33:021
3220032993027,2cyclictest3255883-21munin-run08:15:011
3220029993028,1cyclictest3237407-21apt-get07:43:010
3220029993027,2cyclictest3312944-21munin-run10:00:010
3220029993027,2cyclictest3288444-21apt09:15:010
322002999300,29cyclictest0-21swapper/011:20:020
322004999290,28cyclictest0-21swapper/712:33:027
322004999290,28cyclictest0-21swapper/711:48:017
322004999290,28cyclictest0-21swapper/709:03:007
322004999290,1cyclictest3330036-21apt-get10:33:017
322004999290,1cyclictest1-21systemd08:05:017
3220047992926,3cyclictest0-21swapper/609:23:016
3220047992925,3cyclictest3329409-21latency_hist10:30:026
322004499290,28cyclictest0-21swapper/509:25:015
3220042992927,1cyclictest3391604-21munin-run12:25:014
322004299290,28cyclictest0-21swapper/409:23:014
322004299290,28cyclictest0-21swapper/409:18:024
322004299290,28cyclictest0-21swapper/408:48:004
322004299290,28cyclictest0-21swapper/408:08:014
322003799290,28cyclictest0-21swapper/312:23:003
322003799290,28cyclictest0-21swapper/310:30:023
322003799290,1cyclictest0-21swapper/308:00:003
3220035992927,1cyclictest0-21swapper/209:53:022
3220035992927,1cyclictest0-21swapper/209:53:022
322003599290,28cyclictest0-21swapper/209:48:002
322003599290,28cyclictest0-21swapper/209:48:002
322003599290,28cyclictest0-21swapper/209:40:012
322003599290,28cyclictest0-21swapper/209:30:012
322003599290,28cyclictest0-21swapper/208:08:012
322003599290,28cyclictest0-21swapper/207:30:012
322003599290,28cyclictest0-21swapper/207:20:002
3220032992928,1cyclictest0-21swapper/108:33:031
322003299290,28cyclictest0-21swapper/112:03:011
322003299290,28cyclictest0-21swapper/111:33:001
322003299290,28cyclictest0-21swapper/110:33:011
322003299290,28cyclictest0-21swapper/107:58:021
322003299290,28cyclictest0-21swapper/107:18:001
322002999290,28cyclictest0-21swapper/008:03:010
322002999290,28cyclictest0-21swapper/007:55:010
322002999290,28cyclictest0-21swapper/007:15:010
322002999290,1cyclictest3318631-21unin-run10:10:010
322004999280,28cyclictest0-21swapper/708:40:017
322004999280,27cyclictest0-21swapper/710:23:037
322004999280,27cyclictest0-21swapper/709:20:017
322004999280,0cyclictest0-21swapper/709:23:007
3220047992826,1cyclictest3248441-21apt-get08:03:016
3220047992826,1cyclictest0-21swapper/610:08:006
3220044992827,1cyclictest3313838-21apt-get10:03:005
3220044992827,1cyclictest0-21swapper/509:03:015
3220044992827,1cyclictest0-21swapper/507:48:015
3220044992826,1cyclictest3302813-21apt-get09:43:015
322004499280,27cyclictest0-21swapper/510:33:025
3220042992827,1cyclictest0-21swapper/412:18:014
3220042992825,3cyclictest0-21swapper/407:28:034
3220042992825,2cyclictest0-21swapper/407:20:014
3220037992827,1cyclictest1-21systemd07:45:013
3220037992826,1cyclictest0-21swapper/307:33:003
3220037992824,3cyclictest3272035-21latency_hist08:45:013
322003799280,27cyclictest0-21swapper/308:58:043
3220035992827,1cyclictest0-21swapper/212:38:022
3220035992827,1cyclictest0-21swapper/211:08:012
322003599280,28cyclictest0-21swapper/212:15:012
322003599280,0cyclictest0-21swapper/208:20:012
322003299280,28cyclictest3297158-21apt-get09:33:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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