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2026-06-14 - 15:23
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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 Jun 14, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3677769997141,28cyclictest3871222-21kworker/1:012:15:131
3677769997043,26cyclictest3140025-1kworker/1:0H10:10:141
3677769997043,25cyclictest3676254-21kworker/1:307:15:001
3677769997041,28cyclictest3719843-21kworker/1:209:25:141
3677769996938,30cyclictest3694128-21kworker/1:008:05:191
3677769996839,28cyclictest3140025-1kworker/1:0H07:50:141
3677769996838,29cyclictest3692538-21kworker/1:108:00:141
3677769996738,28cyclictest3140025-1kworker/1:0H10:35:061
3677769996640,24cyclictest3140025-1kworker/1:0H11:55:001
3677769996639,26cyclictest3692538-21kworker/1:107:55:151
3677769996637,27cyclictest3803513-21kworker/1:011:00:131
3677769996540,22cyclictest3140025-1kworker/1:0H07:20:011
3677769996461,2cyclictest0-21swapper/112:25:491
3677769996441,22cyclictest3698765-21kworker/1:208:22:391
3677769996438,25cyclictest3793728-21kworker/1:110:50:141
3677769996335,26cyclictest3821376-21kworker/1:211:15:131
3677769996335,26cyclictest3821376-21kworker/1:211:15:131
3677769996238,22cyclictest3140025-1kworker/1:0H08:14:591
3677769996231,29cyclictest3716254-21kworker/1:109:10:171
3677769996150,9cyclictest1-21systemd08:59:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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