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2026-04-21 - 22:25
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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 Apr 21, 2026 12:37:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38410482234177,19sleep50-21swapper/507:02:105
38388902229170,19sleep20-21swapper/206:59:002
38409532228172,44sleep30-21swapper/307:00:473
38388622218188,19sleep10-21swapper/106:58:361
38387752216187,19sleep60-21swapper/606:57:216
38388862213182,20sleep70-21swapper/706:58:587
38388562212182,19sleep40-21swapper/406:58:314
38410242208177,19sleep00-21swapper/007:01:490
384128499553,24cyclictest0-21swapper/509:12:525
384126899512,25cyclictest0-21swapper/008:57:050
3841291993932,4cyclictest4072240-21munin-run09:35:017
3841279993713,24cyclictest0-21swapper/408:57:144
3841279993611,25cyclictest0-21swapper/408:38:164
384128499350,29cyclictest0-21swapper/512:05:135
3841275993531,3cyclictest680-21avahi-daemon09:11:573
3841270993533,1cyclictest100-21kauditd11:55:011
384128899330,33cyclictest3912006-21dpkg-deb08:36:426
384128499330,2cyclictest4046190-21py3compile09:05:265
384128499330,29cyclictest3911558-21dpkg08:37:235
3841273993329,4cyclictest0-21swapper/208:53:492
384127099330,3cyclictest4164741-21cron12:25:011
3841291993229,0cyclictest0-21swapper/708:56:467
3841288993226,5cyclictest3930324-21py3compile08:39:546
384128899322,29cyclictest18-1pr/ttyS009:05:326
384128899320,30cyclictest4050320-21exec-inner09:11:556
3841284993228,1cyclictest0-21swapper/511:00:125
3841284993227,1cyclictest4115874-21apt-get10:55:045
384128499320,30cyclictest3979850-21dpkg08:52:185
3841275993229,2cyclictest3911558-21dpkg08:37:193
384127599322,1cyclictest18-1pr/ttyS009:40:013
384126899321,29cyclictest0-21swapper/010:10:120
384126899320,31cyclictest4052398-21systemd-cryptse09:12:170
384129199310,30cyclictest3861236-21latency_hist07:37:167
3841288993128,2cyclictest0-21swapper/612:05:116
384128899310,30cyclictest3980049-21sed08:52:196
384128899310,30cyclictest0-21swapper/608:48:156
3841284993126,1cyclictest4165181-21apt-get12:25:155
384128499310,30cyclictest4100058-21chrt10:25:125
3841279993128,0cyclictest0-21swapper/409:12:214
384127999310,30cyclictest3863931-21idleruntime-cro07:42:164
384127999310,29cyclictest4132600-21apt-get11:25:144
384127999310,29cyclictest0-21swapper/411:05:144
384127999310,29cyclictest0-21swapper/409:55:134
3841275993129,1cyclictest4096893-21journal-offline10:20:013
384127399310,31cyclictest4031265-21cp08:58:272
384127099312,29cyclictest33-21ksoftirqd/110:10:011
3841268993128,2cyclictest3930503-21systemd-tty-ask08:40:020
384126899310,29cyclictest4121781-21apt-get11:05:140
3841291993028,1cyclictest0-21swapper/708:37:477
3841291993027,2cyclictest3964981-21dpkg-deb08:48:147
384129199300,30cyclictest4170349-21tar12:35:027
384129199300,29cyclictest4078419-21apt-get09:45:137
384129199300,28cyclictest4102754-21apt-get10:30:127
3841288993027,3cyclictest0-21swapper/608:10:126
3841288993027,2cyclictest0-21swapper/610:50:126
3841288993026,3cyclictest0-21swapper/608:20:116
3841288993025,4cyclictest0-21swapper/612:17:016
384128899300,29cyclictest4052981-21systemd-cryptse09:12:206
384128899300,29cyclictest3986178-21systemd-journal11:15:016
384128899300,29cyclictest0-21swapper/610:15:116
3841284993028,1cyclictest4094631-21apt-get10:15:125
3841284993028,1cyclictest0-21swapper/511:05:135
384128499300,2cyclictest4050546-21sd-exec-strv09:11:575
384128499300,2cyclictest3912399-21py3clean08:36:485
3841279993028,1cyclictest0-21swapper/409:40:044
384127999300,29cyclictest3979009-21dpkg-deb08:52:104
384127999300,29cyclictest0-21swapper/409:11:554
384127999300,28cyclictest0-21swapper/409:25:124
3841275993028,1cyclictest0-21swapper/310:10:123
384127599300,30cyclictest3980984-21dpkg-query08:52:303
384127599300,2cyclictest4107805-21sendmail-msp10:40:013
384127599300,29cyclictest0-21swapper/309:50:133
384127599300,29cyclictest0-21swapper/308:27:153
384127599300,1cyclictest0-21swapper/312:20:143
384127599300,1cyclictest0-21swapper/311:35:133
3841273993027,3cyclictest0-21swapper/209:11:562
384127399300,2cyclictest4046653-21systemd-fstab-g09:05:312
384127399300,29cyclictest3979426-21dpkg08:52:172
3841270993028,2cyclictest3954372-21apt08:49:311
3841270993028,1cyclictest0-21swapper/111:35:141
3841270993028,1cyclictest0-21swapper/109:54:561
3841270993028,1cyclictest0-21swapper/109:30:111
3841270993027,2cyclictest3911558-21dpkg08:37:531
384127099300,30cyclictest4031497-21depmod08:58:271
384127099300,2cyclictest3983031-21dpkg-query08:52:591
384127099300,29cyclictest0-21swapper/111:45:131
3841268993028,1cyclictest0-21swapper/011:20:120
3841268993028,1cyclictest0-21swapper/010:20:130
384126899300,30cyclictest0-21swapper/012:00:010
384126899300,29cyclictest4156611-21sh12:10:000
3841291992928,1cyclictest0-21swapper/709:25:117
3841291992928,1cyclictest0-21swapper/709:20:137
3841291992927,1cyclictest4162481-21apt-get12:20:147
3841291992927,1cyclictest3954372-21apt08:46:417
3841291992927,1cyclictest0-21swapper/711:55:187
384129199290,29cyclictest0-21swapper/710:55:147
384129199290,28cyclictest0-21swapper/709:40:127
384129199290,28cyclictest0-21swapper/709:05:137
384129199290,28cyclictest0-21swapper/707:05:127
384129199290,1cyclictest4086533-21apt-get10:00:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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