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2026-04-12 - 03:39
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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 Sun Apr 12, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6734992232180,17sleep50-21swapper/519:08:155
6714882225169,18sleep70-21swapper/719:07:137
6735412220166,43sleep00-21swapper/019:08:510
6735362219161,17sleep40-21swapper/419:08:474
6715252218187,20sleep60-21swapper/619:07:446
6714932217187,20sleep30-21swapper/319:07:173
6715092216187,19sleep10-21swapper/119:07:301
6713622207178,18sleep20-21swapper/219:05:222
7484002630,0sleep10-21swapper/121:27:591
67384399557,24cyclictest0-21swapper/222:08:202
67384399343,30cyclictest0-21swapper/220:15:012
67385599330,2cyclictest766223-21latency_hist22:00:025
673861993129,1cyclictest832679-21apt-get00:03:007
67386199310,3cyclictest799158-21cron23:00:017
67386199310,30cyclictest815587-21apt23:30:017
673858993128,2cyclictest679792-21apt19:20:006
67385899310,30cyclictest834742-21debian-sa100:05:016
67385899310,29cyclictest0-21swapper/623:02:596
67385899310,29cyclictest0-21swapper/622:02:596
67385599310,30cyclictest736644-21awk21:05:025
67385599310,28cyclictest723778-21apt-get20:42:595
67384399310,29cyclictest0-21swapper/222:53:002
673861993028,1cyclictest688495-21apt-get19:37:577
673858993026,3cyclictest824561-21http23:47:596
67385899300,29cyclictest701333-21turbostat.cron20:00:016
673855993025,4cyclictest0-21swapper/500:20:005
67385599300,2cyclictest744681-21idleruntime-cro21:20:015
67385599300,29cyclictest737238-21apt-get21:07:595
673852993028,1cyclictest0-21swapper/422:35:014
673848993028,1cyclictest775239-21apt-get22:18:003
673848993028,1cyclictest0-21swapper/322:12:593
67384899300,29cyclictest369-21systemd-journal19:35:013
673843993029,1cyclictest0-21swapper/200:02:592
67384399300,29cyclictest0-21swapper/220:55:012
673839993028,1cyclictest0-21swapper/120:12:591
673837993028,1cyclictest0-21swapper/021:32:590
67383799300,29cyclictest0-21swapper/021:25:020
673861992927,1cyclictest699267-21apt-get19:57:597
67386199290,28cyclictest0-21swapper/723:52:597
67386199290,28cyclictest0-21swapper/721:42:597
67386199290,28cyclictest0-21swapper/721:35:027
67386199290,28cyclictest0-21swapper/720:47:597
673858992927,1cyclictest794406-21apt-get22:53:006
673858992926,2cyclictest747388-21idleruntime-cro21:25:026
67385899290,28cyclictest0-21swapper/600:10:016
67385899290,1cyclictest744745-21systemd-run21:20:026
673855992927,2cyclictest733916-21munin-run21:00:025
673855992927,1cyclictest0-21swapper/519:22:575
673855992925,3cyclictest278-21plymouthd20:05:015
67385599290,28cyclictest0-21swapper/522:47:595
67385599290,1cyclictest1-21systemd23:40:015
67385599290,0cyclictest0-21swapper/522:07:595
67385299290,29cyclictest832044-21munin-run00:00:004
67385299290,28cyclictest691202-21apt-get19:42:584
67385299290,28cyclictest0-21swapper/419:33:004
67385299290,1cyclictest725838-21sh20:45:014
673848992927,1cyclictest0-21swapper/322:07:583
67384899290,29cyclictest755455-21latency_hist21:40:023
67384899290,28cyclictest0-21swapper/322:23:003
67384899290,28cyclictest0-21swapper/300:33:003
67384399290,28cyclictest0-21swapper/200:17:582
67384399290,28cyclictest0-21swapper/200:15:012
67384399290,1cyclictest823930-21latency_hist23:45:012
673839992928,1cyclictest278-21plymouthd20:20:011
673839992928,1cyclictest278-21plymouthd20:20:001
673839992928,1cyclictest0-21swapper/122:32:571
673839992927,1cyclictest0-21swapper/120:42:591
67383999290,28cyclictest0-21swapper/123:12:591
67383999290,28cyclictest0-21swapper/120:23:001
67383999290,28cyclictest0-21swapper/119:20:011
67383999290,28cyclictest0-21swapper/100:32:591
67383999290,1cyclictest771488-21fwupd22:08:211
67383999290,1cyclictest0-21swapper/123:20:001
673837992927,1cyclictest0-21swapper/021:47:590
673837992927,1cyclictest0-21swapper/000:27:580
67383799290,28cyclictest0-21swapper/023:52:580
67383799290,28cyclictest0-21swapper/023:13:000
67383799290,28cyclictest0-21swapper/021:05:020
67383799290,28cyclictest0-21swapper/019:15:000
673861992828,0cyclictest0-21swapper/721:53:007
673861992826,1cyclictest760850-21idleruntime-cro21:50:027
673861992826,1cyclictest731840-21apt-get20:57:597
67386199280,28cyclictest0-21swapper/722:00:017
673858992827,1cyclictest0-21swapper/619:27:586
67385899280,28cyclictest0-21swapper/622:10:026
67385899280,0cyclictest0-21swapper/621:53:006
673855992825,2cyclictest804814-21turbostat.cron23:10:015
673855992825,2cyclictest1-21systemd23:30:005
67385599280,28cyclictest0-21swapper/500:15:015
673852992828,0cyclictest0-21swapper/420:25:014
673852992827,1cyclictest0-21swapper/422:57:594
673852992827,1cyclictest0-21swapper/400:05:014
673852992826,1cyclictest700-21rs:main4
673852992826,1cyclictest0-21swapper/419:37:584
673852992825,2cyclictest850891-21dump-pmu-power00:35:014
67385299280,1cyclictest722931-21http20:40:014
67385299280,1cyclictest0-21swapper/421:15:024
673848992826,1cyclictest1-21systemd23:35:003
673843992828,0cyclictest0-21swapper/221:00:012
673843992827,1cyclictest0-21swapper/220:35:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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