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2025-11-23 - 12:35
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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 rack1slot3.osadl.org (updated Sun Nov 23, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239626099170,11cyclictest0-21swapper/323:30:123
2396260991311,1cyclictest0-21swapper/321:10:123
239626099130,1cyclictest0-21swapper/323:20:123
239626099130,12cyclictest0-21swapper/323:10:123
239626099130,12cyclictest0-21swapper/320:00:143
239626099130,11cyclictest0-21swapper/321:20:133
2396260991211,1cyclictest69450irq/121-eno100:25:143
239626099120,1cyclictest0-21swapper/321:25:143
239626099120,1cyclictest0-21swapper/320:55:133
239626099120,1cyclictest0-21swapper/319:20:133
239626099120,11cyclictest0-21swapper/323:05:123
239626099120,11cyclictest0-21swapper/322:15:023
239626099120,11cyclictest0-21swapper/322:15:013
239626099120,11cyclictest0-21swapper/322:05:123
239626099120,11cyclictest0-21swapper/300:15:013
2396260991110,0cyclictest69450irq/121-eno120:20:203
239626099110,9cyclictest69450irq/121-eno121:55:133
239626099110,1cyclictest0-21swapper/319:35:133
239626099110,10cyclictest69450irq/121-eno119:50:173
239626099110,10cyclictest69450irq/121-eno100:33:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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