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2025-12-02 - 07:24
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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 Tue Dec 02, 2025 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313692197181,11sleep00-21swapper/019:08:430
312982193178,10sleep10-21swapper/119:07:471
314332186170,12sleep20-21swapper/219:09:342
314192179162,12sleep30-21swapper/319:09:233
168512460,0sleep10-21swapper/121:36:211
113242450,0sleep30-21swapper/323:28:153
22762430,0sleep20-21swapper/223:07:002
301542380,0sleep30-21swapper/323:37:413
102892110,0sleep10-21swapper/123:44:231
3165299103,5cyclictest1292-21ssh21:12:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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