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2024-02-27 - 01:22
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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 rack5slot2.osadl.org (updated Mon Feb 26, 2024 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1988928077,2sleep10-21swapper/107:06:031
231212470,0sleep00-21swapper/012:30:060
62272440,0sleep20-21swapper/212:39:382
17572430,0sleep3759-21snmpd11:56:313
203322420,0sleep10-21swapper/109:31:191
123822410,0sleep10-21swapper/107:55:301
2013323431,2sleep00-21swapper/007:09:110
1988623128,2sleep30-21swapper/307:06:023
2007622825,2sleep20-21swapper/207:08:282
200092130,0sleep10-21swapper/111:28:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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