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2026-01-11 - 03:22
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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 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8584912720,2sleep10-21swapper/121:33:071
6960902390,0sleep1696093-21cut19:33:051
8362472340,2sleep00-21swapper/021:22:080
667986992623,2cyclictest1159950-21munin-run00:20:000
667986992615,10cyclictest1056625-21kthreadcore23:23:070
667986992512,8cyclictest1081392-21cut23:38:010
667986992414,5cyclictest1045140-21cstates23:18:010
667986992411,8cyclictest993683-21kthreadcore22:48:060
667986992314,5cyclictest1146345-21kthreadcore00:13:050
667986992310,8cyclictest874317-21kthreadcore21:43:050
667986992310,5cyclictest882125-21aten2.4-expect21:48:000
11365602230,2sleep20-21swapper/200:08:062
11365602230,2sleep20-21swapper/200:08:062
66798699229,8cyclictest1138152-21kthreadcore00:08:070
66798699229,8cyclictest1138152-21kthreadcore00:08:070
667986992212,5cyclictest954005-21/usr/sbin/munin22:28:020
667986992210,7cyclictest1105492-21perf23:50:000
66798699217,4cyclictest0-21swapper/023:53:080
667986992118,2cyclictest773630-21apt-key20:35:000
667986992113,4cyclictest931333-21kthreadcore22:13:080
667986992112,5cyclictest0-21swapper/023:15:010
66798699210,16cyclictest0-21swapper/000:33:430
667988992014,2cyclictest1086718-21runrttasks23:38:521
667988992012,3cyclictest0-21swapper/122:30:011
66798699208,7cyclictest0-21swapper/021:18:050
66798699206,4cyclictest0-21swapper/023:08:060
667986992016,2cyclictest1286-21avahi-daemon22:45:010
66798699200,6cyclictest1051628-21kworker/u16:3+rpciod23:59:150
66798699200,6cyclictest0-21swapper/023:40:500
2649091202,2phc2sys0-21swapper/300:24:243
2649091200,2phc2sys0-21swapper/322:10:223
66798899198,3cyclictest134050irq/121-eno100:10:021
66798899198,3cyclictest134050irq/121-eno100:10:021
667988991917,1cyclictest0-21swapper/122:20:001
667988991916,2cyclictest816406-21/usr/sbin/munin21:10:011
667988991916,2cyclictest1051431-21cron23:20:011
667988991912,3cyclictest887089-21/usr/sbin/munin21:48:111
66798699199,5cyclictest0-21swapper/023:33:120
66798699197,7cyclictest0-21swapper/019:30:010
66798699196,8cyclictest0-21swapper/021:28:070
66798699194,5cyclictest1329-21rs:main0
66798699193,6cyclictest0-21swapper/000:24:550
667986991916,2cyclictest816346-21gpgconf21:10:010
667986991913,5cyclictest1127228-21irqrtprio00:03:040
667986991910,5cyclictest1065947-21kthreadcore23:28:050
66798699190,9cyclictest889231-21ssh21:50:240
66798699190,5cyclictest973389-21sed22:38:110
66798699190,5cyclictest963152-21ssh22:32:530
2649091191,2phc2sys0-21swapper/323:59:503
7179672180,2sleep30-21swapper/319:48:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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