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2025-12-23 - 22:14
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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 Tue Dec 23, 2025 12:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12489399368366,1cyclictest0-21swapper/109:55:021
12493299360359,1cyclictest0-21swapper/612:16:026
12489399359358,1cyclictest0-21swapper/109:03:021
12491799351350,1cyclictest4028943-21kworker/4:107:54:024
12491799344342,1cyclictest4028943-21kworker/4:107:45:024
12491799343341,1cyclictest0-21swapper/411:05:024
12491799341340,1cyclictest243061-21kworker/4:210:35:024
12491799341340,1cyclictest0-21swapper/407:55:024
12491799340338,1cyclictest243061-21kworker/4:211:25:024
12491799339338,1cyclictest243061-21kworker/4:211:43:034
12491799338337,1cyclictest4028943-21kworker/4:107:10:024
12491799338336,1cyclictest300206-21kworker/4:012:10:024
12491799336335,1cyclictest0-21swapper/408:05:024
12491799335333,1cyclictest300206-21kworker/4:012:01:024
12491799333332,1cyclictest0-21swapper/409:05:024
12491799333331,1cyclictest0-21swapper/411:30:024
12491799332330,1cyclictest173864-21kworker/4:208:45:034
12491799332330,1cyclictest0-21swapper/412:07:024
12491799332330,1cyclictest0-21swapper/410:05:024
12491799331329,1cyclictest300206-21kworker/4:012:21:024
12491799331328,1cyclictest203956-21kworker/4:109:51:024
12491799330329,1cyclictest0-21swapper/411:45:034
12491799330328,1cyclictest173864-21kworker/4:209:01:024
12491799330328,1cyclictest173864-21kworker/4:208:51:034
12491799329328,1cyclictest4028943-21kworker/4:107:41:024
12491799329328,1cyclictest173864-21kworker/4:209:20:024
12491799329328,1cyclictest0-21swapper/409:27:034
12491799329327,1cyclictest203956-21kworker/4:109:57:024
12491799328327,1cyclictest0-21swapper/410:14:024
12491799328327,1cyclictest0-21swapper/408:15:014
12491799328326,1cyclictest203956-21kworker/4:110:15:034
12491799328326,1cyclictest173864-21kworker/4:209:19:034
12491799327326,1cyclictest4028943-21kworker/4:107:33:024
12491799327326,1cyclictest243061-21kworker/4:211:00:024
12491799327326,1cyclictest0-21swapper/411:54:034
12491799327326,1cyclictest0-21swapper/411:24:024
12491799327326,1cyclictest0-21swapper/411:12:024
12491799327326,1cyclictest0-21swapper/409:38:014
12491799326325,1cyclictest300206-21kworker/4:012:25:024
12491799326325,1cyclictest0-21swapper/411:19:024
12491799326324,1cyclictest243061-21kworker/4:210:44:024
12491799325324,1cyclictest4028943-21kworker/4:108:24:024
12491799325324,1cyclictest243061-21kworker/4:210:28:024
12491799324323,1cyclictest243061-21kworker/4:210:30:024
12491799324323,1cyclictest203956-21kworker/4:110:23:024
12491799323322,1cyclictest203956-21kworker/4:109:32:024
12491799323321,1cyclictest300206-21kworker/4:012:19:024
12491799323321,1cyclictest173864-21kworker/4:208:56:024
12491799322321,1cyclictest173864-21kworker/4:208:44:034
12491799322321,1cyclictest0-21swapper/412:34:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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