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2024-04-21 - 06:54
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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 rack0slot7.osadl.org (updated Sun Apr 21, 2024 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16290352195178,9sleep10-21swapper/119:08:411
16290282185141,34sleep140-21swapper/1419:08:376
16287302182175,3sleep70-21swapper/719:06:2213
15627532173156,9sleep120-21swapper/1219:05:064
16290692161143,9sleep60-21swapper/619:09:0212
16291372154136,10sleep30-21swapper/319:09:479
15627542150131,10sleep130-21swapper/1319:05:075
19769201360,133pipewire-pulse0-21swapper/819:05:1414
16288672133115,9sleep90-21swapper/919:07:1215
19777201210,114pipewire0-21swapper/019:07:070
16289532113105,4sleep40-21swapper/419:07:5610
16289002111110,0sleep110-21swapper/1119:07:313
16291392110107,2sleep50-21swapper/519:09:4911
1628998210950,51sleep150-21swapper/1519:08:227
162884527154,9sleep100-21swapper/1019:06:582
162750726156,2sleep20-21swapper/219:06:028
1629921994442,2cyclictest3727582-21Renderer00:06:378
1629921994442,2cyclictest3727582-21Renderer00:06:378
143999400,0ntpd0-21swapper/021:29:400
1629961993812,26cyclictest3727582-21Renderer21:38:415
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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