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2025-07-12 - 11:11
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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 20 highest latencies:
System rackeslot3.osadl.org (updated Sat Jul 12, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3484244997541,33cyclictest1340270-1kworker/1:0H23:45:151
3484244996863,3cyclictest0-21swapper/120:01:571
3484244996663,2cyclictest0-21swapper/120:31:521
3484244996662,3cyclictest0-21swapper/121:57:541
3484244996562,2cyclictest0-21swapper/122:12:291
3484244996461,2cyclictest0-21swapper/119:55:361
3484244996461,2cyclictest0-21swapper/100:24:271
3484244996460,2cyclictest0-21swapper/119:36:031
3484244996459,3cyclictest3488701-21fschecks_count19:20:131
3484244996447,16cyclictest3572317-21kworker/1:223:55:151
3484244996443,18cyclictest3484077-21kworker/1:019:50:001
3484244996342,19cyclictest3543125-21kworker/1:122:30:141
3484244996338,20cyclictest3555206-21kworker/1:222:55:151
348424499630,62cyclictest0-21swapper/123:08:531
348424499630,62cyclictest0-21swapper/122:49:281
3484244996258,3cyclictest0-21swapper/122:50:051
3484244996241,19cyclictest1340270-1kworker/1:0H22:05:001
3484244996241,19cyclictest1340270-1kworker/1:0H00:10:001
3484244996233,26cyclictest1340270-1kworker/1:0H20:15:141
348424499620,1cyclictest0-21swapper/122:38:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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