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2025-11-26 - 21:35
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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 10 highest latencies:
System rack0slot4.osadl.org (updated Wed Nov 26, 2025 00:46:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5799799972400,7239cyclictest683828-21modprobe21:10:0013
5782502380373,5sleep60-21swapper/619:05:2512
5785532377369,5sleep100-21swapper/1019:05:292
5795172375353,14sleep140-21swapper/1419:09:196
5794682355310,14sleep80-21swapper/819:08:4014
5793492353311,14sleep90-21swapper/919:07:0515
5759892347336,7sleep50-21swapper/519:05:0811
5794152346323,15sleep130-21swapper/1319:07:575
5794902341319,14sleep110-21swapper/1119:09:003
5793972340317,15sleep150-21swapper/1519:07:427
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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