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2024-02-24 - 16:43
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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 rackaslot8.osadl.org (updated Sat Feb 24, 2024 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316332289218,21sleep30-21swapper/307:09:463
316062279244,23sleep10-21swapper/107:09:221
315032263229,22sleep00-21swapper/007:08:020
313962263228,22sleep20-21swapper/207:06:382
68362620,0sleep20-21swapper/208:35:272
160132600,0sleep20-21swapper/211:50:572
133362600,0sleep30-21swapper/309:30:313
259812570,0sleep10-21swapper/111:32:021
189442560,0sleep10-21swapper/110:05:021
157272440,0sleep10-21swapper/109:33:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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