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2025-11-22 - 04:43
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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 rackeslot8.osadl.org (updated Sat Nov 22, 2025 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4111750992723,1cyclictest0-21swapper/323:00:003
4111750992623,1cyclictest0-21swapper/323:34:593
4111750992623,1cyclictest0-21swapper/323:20:153
4111750992623,1cyclictest0-21swapper/300:25:013
4111750992623,1cyclictest0-21swapper/300:25:003
4111750992523,1cyclictest0-21swapper/322:30:173
4111750992218,1cyclictest0-21swapper/321:25:013
4111750992118,1cyclictest0-21swapper/322:05:003
4111750992118,1cyclictest0-21swapper/319:15:003
4111750992017,1cyclictest0-21swapper/323:55:003
411175099199,6cyclictest754932sleep321:12:243
4111750991916,1cyclictest0-21swapper/322:40:003
4111750991916,1cyclictest0-21swapper/321:45:003
4111750991916,1cyclictest0-21swapper/319:30:003
411175099191,15cyclictest62559-21turbostat21:09:553
411175099191,13cyclictest31288-21taskset20:39:573
1072972190,10sleep2107305-21ssh21:31:582
411175099188,6cyclictest3403042sleep323:58:543
4111750991815,1cyclictest0-21swapper/300:35:193
411175099181,13cyclictest76991-21taskset21:15:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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