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2025-12-01 - 00:25
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3.osadl.org (updated Sun Nov 30, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1902919997235,35cyclictest1927222-21kworker/1:008:35:011
1902919996731,34cyclictest3901301-1kworker/1:0H10:59:591
1902919996637,28cyclictest1958188-21kworker/1:110:05:161
1902919996562,2cyclictest0-21swapper/111:51:191
1902919996543,21cyclictest1985087-1kworker/1:1H12:05:001
190291999650,64cyclictest0-21swapper/107:29:191
1902919996437,26cyclictest3901301-1kworker/1:0H10:50:191
1902919996360,2cyclictest0-21swapper/108:52:491
1902919996329,32cyclictest2004317-21kworker/1:012:15:161
1902919996235,26cyclictest1905565-21kworker/1:208:00:001
1902919996231,30cyclictest1958188-21kworker/1:110:35:161
1902919996231,30cyclictest1958188-21kworker/1:110:35:161
1902919996130,30cyclictest3901301-1kworker/1:0H11:15:161
1902925996044,13cyclictest1395319-1kworker/3:0H09:15:173
1902919996039,20cyclictest1985087-1kworker/1:1H12:30:141
1902919996034,25cyclictest1958188-21kworker/1:110:05:011
1902919996028,30cyclictest1953404-21kworker/1:309:40:121
190291999601,1cyclictest0-21swapper/109:05:131
1902919995943,15cyclictest1920177-21kworker/1:108:10:051
1902919995931,27cyclictest1985087-1kworker/1:1H12:25:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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