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2026-04-19 - 20:52
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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 19, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12580112226170,18sleep10-21swapper/107:08:571
12559322221168,18sleep30-21swapper/307:06:593
12559432215186,18sleep20-21swapper/207:07:062
12559272214184,19sleep70-21swapper/707:06:557
12559452209177,21sleep40-21swapper/407:07:094
12559832207174,21sleep60-21swapper/607:07:436
12559772206176,19sleep00-21swapper/007:07:370
12558492204173,21sleep50-21swapper/507:05:495
1258329993916,23cyclictest0-21swapper/707:23:427
1258321993429,4cyclictest1424823-21awk12:15:014
125832999320,31cyclictest369-21systemd-journal08:45:027
1258329993129,1cyclictest1286565-21updatedb.plocat08:01:077
125831099310,30cyclictest681-21dbus-daemon09:50:010
125832999300,1cyclictest1267854-21apt-get07:27:577
125832999300,1cyclictest0-21swapper/710:20:017
1258327993028,1cyclictest1387466-21apt-get11:07:576
125832799300,29cyclictest1329444-21latency_hist09:20:026
125832799300,29cyclictest0-21swapper/609:35:026
125832799300,29cyclictest0-21swapper/607:35:016
1258323993026,3cyclictest1315721-21turbostat.cron08:55:015
125832399300,2cyclictest1280722-21munin-run07:50:015
125832399300,2cyclictest1280722-21munin-run07:50:015
125832399300,1cyclictest1307639-21latency_hist08:40:025
125832199300,29cyclictest1392214-21latency_hist11:15:014
1258318993027,2cyclictest1327028-21packagekitd09:15:023
1258318993026,3cyclictest1315722-21dump-pmu-power08:55:023
125831899300,2cyclictest369-21systemd-journal08:40:023
125831899300,28cyclictest0-21swapper/308:32:573
125831899300,1cyclictest1365921-21apt-get10:27:583
125831899300,1cyclictest1286565-21updatedb.plocat08:01:083
125831899300,1cyclictest0-21swapper/312:35:003
125831899300,1cyclictest0-21swapper/311:02:563
125831699300,29cyclictest0-21swapper/210:42:582
125831199300,29cyclictest1414384-21apt-get11:57:581
1258310993027,2cyclictest1381443-21sh10:55:010
1258329992928,1cyclictest0-21swapper/707:37:577
1258329992927,1cyclictest1319050-21apt-get09:02:587
1258329992927,1cyclictest1258813-21apt-get07:12:567
125832999290,28cyclictest0-21swapper/711:27:597
125832999290,28cyclictest0-21swapper/711:02:567
125832999290,28cyclictest0-21swapper/709:07:577
125832999290,28cyclictest0-21swapper/707:47:587
125832999290,28cyclictest0-21swapper/707:47:587
125832799290,28cyclictest0-21swapper/610:42:596
125832799290,28cyclictest0-21swapper/607:25:026
125832799290,1cyclictest0-21swapper/610:00:016
125832799290,1cyclictest0-21swapper/608:35:026
1258323992927,1cyclictest1334843-21sh09:30:025
125832399290,28cyclictest0-21swapper/511:32:595
125832399290,28cyclictest0-21swapper/510:17:585
125832399290,1cyclictest0-21swapper/511:02:575
1258321992927,1cyclictest1371300-21apt-get10:37:574
125832199290,28cyclictest0-21swapper/411:22:594
125832199290,28cyclictest0-21swapper/409:02:584
125832199290,28cyclictest0-21swapper/407:37:574
125832199290,28cyclictest0-21swapper/407:12:574
125832199290,1cyclictest1398239-21apt-get11:27:584
1258318992927,1cyclictest700-21rs:main3
125831899290,28cyclictest1360529-21http10:17:583
125831899290,1cyclictest1267854-21apt-get07:27:563
125831699290,28cyclictest0-21swapper/211:30:012
125831699290,28cyclictest0-21swapper/210:17:572
125831699290,28cyclictest0-21swapper/210:02:592
125831699290,28cyclictest0-21swapper/209:47:572
125831699290,28cyclictest0-21swapper/209:17:572
125831699290,1cyclictest0-21swapper/211:25:012
1258311992928,1cyclictest0-21swapper/111:25:011
125831199290,28cyclictest0-21swapper/112:33:071
125831199290,28cyclictest0-21swapper/108:12:581
125831199290,1cyclictest1345930-21dpkg09:50:011
125831199290,1cyclictest0-21swapper/111:05:011
1258310992927,1cyclictest0-21swapper/012:25:010
125831099290,28cyclictest278-21plymouthd11:55:010
125831099290,28cyclictest1315751-21awk08:55:020
125831099290,28cyclictest1-21systemd08:15:020
125831099290,28cyclictest0-21swapper/012:25:030
125831099290,28cyclictest0-21swapper/009:30:020
125831099290,28cyclictest0-21swapper/009:12:570
125831099290,28cyclictest0-21swapper/009:07:580
125831099290,28cyclictest0-21swapper/007:25:020
125831099290,1cyclictest278-21plymouthd11:00:010
1258329992824,3cyclictest1329443-21sh09:20:027
125832999280,27cyclictest0-21swapper/712:37:597
125832999280,27cyclictest0-21swapper/709:52:597
125832999280,1cyclictest1349752-21apt-get09:57:567
125832999280,0cyclictest0-21swapper/711:17:577
125832999280,0cyclictest0-21swapper/709:32:587
1258327992827,1cyclictest0-21swapper/612:17:586
1258327992827,1cyclictest0-21swapper/612:17:576
1258327992826,1cyclictest0-21swapper/612:02:586
1258327992826,1cyclictest0-21swapper/608:38:006
1258327992825,2cyclictest1289424-21apt-get08:07:576
125832799280,28cyclictest0-21swapper/609:50:016
125832799280,1cyclictest1-21systemd08:05:016
1258323992826,1cyclictest1382070-21apt-get10:57:565
1258323992826,1cyclictest1299576-21debian-sa108:25:015
125832399280,1cyclictest0-21swapper/512:35:015
1258321992827,1cyclictest0-21swapper/410:45:014
1258321992826,1cyclictest1329447-21turbostat.cron09:20:024
1258321992826,1cyclictest1288836-21awk08:05:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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