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2025-04-02 - 04:26
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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
Characteristics of the 20 highest latencies:
System rack7slot1.osadl.org (updated Wed Apr 02, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16500212463,56sleep20-21swapper/219:05:492
16669211353,21sleep30-21swapper/319:08:003
16820211150,56sleep10-21swapper/119:09:501
1673729051,34sleep00-21swapper/019:08:480
9162385,13sleep20-21swapper/219:45:032
306902385,13sleep20-21swapper/219:37:292
305862385,13sleep20-21swapper/220:56:172
284652385,13sleep20-21swapper/220:51:562
261242385,13sleep30-21swapper/319:25:323
252042380,1sleep225203-21netstat23:35:282
252042380,1sleep225203-21netstat23:35:282
188402385,13sleep30-21swapper/319:11:523
174642385,13sleep20-21swapper/220:27:312
16942993815,20cyclictest0-21swapper/121:39:011
16937993815,20cyclictest0-21swapper/021:17:010
16937993815,20cyclictest0-21swapper/021:17:010
100312380,1sleep12992-21stress21:26:471
268972375,13sleep30-21swapper/319:30:173
197682375,13sleep30-21swapper/320:33:483
188962375,13sleep20-21swapper/219:12:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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