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2023-10-04 - 09:52
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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 Oct 04, 2023 00:45:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29834702357318,11sleep70-21swapper/719:09:5813
29834702357318,11sleep70-21swapper/719:09:5713
29833982351311,12sleep140-21swapper/1419:09:016
29833982351311,12sleep140-21swapper/1419:09:016
29833652349311,11sleep40-21swapper/419:08:3310
29833652349311,11sleep40-21swapper/419:08:3310
29834412348309,11sleep00-21swapper/019:09:340
29834412348309,11sleep00-21swapper/019:09:340
29832002347310,10sleep130-21swapper/1319:06:195
29832002347310,10sleep130-21swapper/1319:06:185
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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