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2024-09-11 - 18:40
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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 rack5slot3.osadl.org (updated Wed Sep 11, 2024 12:50:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294529589,3sleep10-21swapper/107:05:251
330028453,26sleep70-21swapper/707:07:307
332328249,29sleep30-21swapper/307:07:513
318528046,30sleep50-21swapper/507:05:535
337327945,30sleep60-21swapper/607:08:346
337127945,30sleep40-21swapper/407:08:334
342527844,30sleep20-21swapper/207:09:182
317127743,29sleep00-21swapper/007:05:400
207232660,0sleep20-21swapper/212:35:132
52252480,0sleep20-21swapper/211:40:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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