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2026-04-26 - 23:18
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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 rackcslot6.osadl.org (updated Sun Apr 26, 2026 12:46:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28855999356355,1cyclictest0-21swapper/510:00:015
28855999355354,1cyclictest0-21swapper/510:10:025
28855999355354,1cyclictest0-21swapper/508:25:025
28855999354353,1cyclictest0-21swapper/509:14:025
28855999354352,1cyclictest0-21swapper/510:09:015
28855999352351,1cyclictest0-21swapper/508:35:025
28855999350349,1cyclictest448850-21kworker/5:011:40:015
28855999350349,1cyclictest0-21swapper/509:48:025
28855999350349,1cyclictest0-21swapper/509:31:025
28855999350348,1cyclictest285402-21kworker/5:107:57:015
28855999349348,1cyclictest358609-21kworker/5:209:40:025
28855999349348,1cyclictest0-21swapper/512:08:015
28855999349348,1cyclictest0-21swapper/509:19:025
28855999349347,1cyclictest0-21swapper/512:03:015
28855999349347,1cyclictest0-21swapper/512:03:015
28855999349347,1cyclictest0-21swapper/509:39:025
28855999349347,1cyclictest0-21swapper/509:06:025
28855999349347,1cyclictest0-21swapper/509:06:015
28855999349347,1cyclictest0-21swapper/508:11:025
28855999348347,1cyclictest285402-21kworker/5:107:25:025
28855999348347,1cyclictest0-21swapper/510:46:015
28855999348347,1cyclictest0-21swapper/510:18:025
28855999348347,1cyclictest0-21swapper/508:06:025
28855999348347,1cyclictest0-21swapper/507:53:015
28855999348346,1cyclictest0-21swapper/512:27:015
28855999347346,1cyclictest448850-21kworker/5:011:55:015
28855999347346,1cyclictest403725-21kworker/5:112:30:015
28855999347346,1cyclictest285402-21kworker/5:107:39:415
28855999347346,1cyclictest285402-21kworker/5:107:39:415
28855999347346,1cyclictest0-21swapper/512:23:015
28855999347346,1cyclictest0-21swapper/511:31:015
28855999347346,1cyclictest0-21swapper/511:02:015
28855999347346,1cyclictest0-21swapper/510:44:015
28855999347346,1cyclictest0-21swapper/508:31:025
28855999347346,1cyclictest0-21swapper/508:16:025
28855999347345,1cyclictest358609-21kworker/5:210:20:015
28855999347345,1cyclictest0-21swapper/510:26:025
28855999346345,1cyclictest448850-21kworker/5:011:45:015
28855999346345,1cyclictest358609-21kworker/5:209:51:025
28855999346345,1cyclictest0-21swapper/511:09:015
28855999346345,1cyclictest0-21swapper/509:29:025
28855999346345,1cyclictest0-21swapper/508:22:025
28855999346344,1cyclictest285402-21kworker/5:109:00:025
28855999345344,1cyclictest0-21swapper/512:12:015
28855999345343,1cyclictest285402-21kworker/5:108:01:025
28855999344341,2cyclictest358609-21kworker/5:210:38:015
28855999343341,1cyclictest285402-21kworker/5:108:52:025
28855999343341,1cyclictest285402-21kworker/5:107:12:015
28855999342341,1cyclictest358609-21kworker/5:210:52:015
28855999342340,1cyclictest403725-21kworker/5:112:36:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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