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2026-01-04 - 05:31
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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 rackeslot2.osadl.org (updated Sun Jan 04, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
337805321600,3sleep30-21swapper/321:28:173
36973092900,2sleep30-21swapper/300:28:133
36929412390,2sleep20-21swapper/200:23:232
3196384992623,2cyclictest0-21swapper/123:00:001
3196383992414,5cyclictest0-21swapper/000:25:010
35062592220,1sleep10-21swapper/122:40:261
3196384992118,2cyclictest0-21swapper/119:20:011
3196384992117,2cyclictest134050irq/121-eno121:15:011
3196383992110,6cyclictest0-21swapper/023:50:020
3196383992110,6cyclictest0-21swapper/022:15:010
3196383992110,6cyclictest0-21swapper/021:38:110
3196384992017,2cyclictest1290-21dbus-daemon22:35:021
3196384992017,2cyclictest1288-1atopacctd23:05:011
3196384992017,2cyclictest0-21swapper/122:30:021
3196383992016,3cyclictest70-21kcompactd023:25:020
3196383992016,3cyclictest70-21kcompactd023:25:020
319638399201,2cyclictest0-21swapper/021:51:120
3196383992011,3cyclictest3343794-21diskmemload21:15:280
2902298200,5rtkit-daemon0-21swapper/022:40:130
3196386991917,1cyclictest0-21swapper/222:20:022
3196386991916,1cyclictest0-21swapper/223:30:012
3196384991916,2cyclictest3442418-21apt-get22:05:021
3196384991911,3cyclictest3420418-21kthreadcore21:53:151
2649091191,2phc2sys0-21swapper/300:24:003
2649091190,2phc2sys0-21swapper/323:44:463
3196386991815,1cyclictest0-21swapper/222:30:012
3196386991814,2cyclictest0-21swapper/200:40:002
319638499184,4cyclictest3388187-21kworker/u16:3+nfsiod22:07:111
3196384991815,2cyclictest3532564-21dump-pmu-power22:55:001
3196384991814,3cyclictest2016-21snmpd23:45:011
3196384991812,1cyclictest32303591idleruntime19:38:131
3196384991811,4cyclictest1-21systemd23:10:011
3196383991815,2cyclictest3571637-21grep23:18:140
319638399180,6cyclictest3649664-21munin-run00:00:030
2649091182,1phc2sys0-21swapper/321:10:153
2649091180,2phc2sys0-21swapper/323:53:283
2649091180,2phc2sys0-21swapper/323:28:423
2649091180,2phc2sys0-21swapper/321:08:193
319638699172,10cyclictest0-21swapper/221:20:012
319638699171,8cyclictest0-21swapper/222:10:012
3196386991714,1cyclictest0-21swapper/222:15:002
3196386991714,1cyclictest0-21swapper/219:30:012
3196386991714,1cyclictest0-21swapper/200:29:042
3196386991713,2cyclictest32592792sleep220:00:002
319638499178,3cyclictest501rcuop/223:21:081
319638499178,3cyclictest501rcuop/223:21:081
319638499177,4cyclictest3460573-21kworker/1:0+events22:20:351
319638499171,5cyclictest0-21swapper/121:57:121
3196384991714,2cyclictest3522080-21mailstats22:48:201
3196384991714,2cyclictest3355627-21tr21:18:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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