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2026-05-11 - 21:03
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Mon May 11, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33762802311270,27sleep10-21swapper/107:09:201
33759352309268,26sleep00-21swapper/007:05:370
179699670,4rtkit-daemon1795-21rtkit-daemon09:30:551
179699640,3rtkit-daemon1795-21rtkit-daemon12:02:071
179699630,3rtkit-daemon1795-21rtkit-daemon07:27:161
179699620,4rtkit-daemon1795-21rtkit-daemon09:26:190
179699580,4rtkit-daemon1795-21rtkit-daemon12:27:171
179699580,4rtkit-daemon1795-21rtkit-daemon07:23:290
34997322570,4sleep13499731-21sendmail_mailtr10:45:241
35421302540,3sleep03542124-21ntp_states11:40:230
179699530,4rtkit-daemon1795-21rtkit-daemon09:30:110
179699480,3rtkit-daemon0-21swapper/007:28:110
179699450,3rtkit-daemon1795-21rtkit-daemon10:16:351
337645299410,9cyclictest284-20systemd-journal09:40:011
34969002390,3sleep10-21swapper/110:41:361
337645299398,9cyclictest26-21ksoftirqd/107:40:011
337645299380,8cyclictest26-21ksoftirqd/109:05:021
3376452993713,4cyclictest26-21ksoftirqd/109:46:571
179699370,6rtkit-daemon3378540-21munin-node12:24:121
179699360,3rtkit-daemon0-21swapper/110:33:291
179699360,3rtkit-daemon0-21swapper/109:15:021
179699360,3rtkit-daemon0-21swapper/109:09:151
3376452993530,3cyclictest18150irq/39-mmc009:45:001
337644399358,3cyclictest161rcuc/010:45:010
179699350,3rtkit-daemon0-21swapper/110:23:150
179699350,3rtkit-daemon0-21swapper/108:52:431
179699350,3rtkit-daemon0-21swapper/108:07:110
179699350,3rtkit-daemon0-21swapper/107:54:471
179699350,3rtkit-daemon0-21swapper/007:22:311
337645299341,7cyclictest3529298-21apt-get11:25:051
337645299341,11cyclictest26-21ksoftirqd/111:50:111
337645299341,10cyclictest26-21ksoftirqd/110:00:141
337645299340,8cyclictest3510294-21apt-get11:00:121
337645299340,8cyclictest3479280-21apt-get10:20:131
337645299340,7cyclictest3560480-21apt-get12:05:111
179699340,5rtkit-daemon3489468-21ssh10:32:050
179699340,4rtkit-daemon0-21swapper/109:37:490
179699340,3rtkit-daemon1795-21rtkit-daemon09:13:351
179699340,3rtkit-daemon0-21swapper/108:47:331
179699340,3rtkit-daemon0-21swapper/010:10:251
337645299331,8cyclictest3491182-21apt-get10:35:121
3376452993312,4cyclictest26-21ksoftirqd/111:16:301
179699330,4rtkit-daemon1795-21rtkit-daemon08:04:251
179699330,4rtkit-daemon1795-21rtkit-daemon07:46:130
179699330,3rtkit-daemon0-21swapper/109:15:080
337645299321,8cyclictest26-21ksoftirqd/110:06:571
3376452993212,3cyclictest26-21ksoftirqd/111:45:171
337645299320,7cyclictest3537474-21apt-get11:35:151
3376443993215,11cyclictest3408534-21apt-get08:30:140
179699320,4rtkit-daemon1795-21rtkit-daemon12:02:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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