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2023-12-04 - 03:41
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack1slot6.osadl.org (updated Mon Dec 04, 2023 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3611330,0irq_work/3381rcuc/321:35:463
3611300,0irq_work/3381rcuc/321:46:403
3611300,0irq_work/3381rcuc/319:06:593
3611270,0irq_work/3381rcuc/322:46:463
3611270,0irq_work/3381rcuc/320:21:233
3611240,0irq_work/3381rcuc/323:28:203
3611180,0irq_work/3381rcuc/319:26:563
3611170,0irq_work/3381rcuc/323:26:233
3611170,0irq_work/3381rcuc/321:06:233
3611160,0irq_work/3381rcuc/323:02:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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