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2026-06-01 - 14:34
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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 rackfslot7.osadl.org (updated Mon Jun 01, 2026 00:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325152599700,69cyclictest0-21swapper/722:00:157
3251519997031,39cyclictest0-21swapper/120:55:511
3251519997031,39cyclictest0-21swapper/120:45:401
3251519997031,39cyclictest0-21swapper/120:45:391
3251519996931,38cyclictest3382159-21ntpq23:05:191
3251519996830,38cyclictest0-21swapper/121:31:071
3251519996123,38cyclictest0-21swapper/122:55:191
3251523995612,19cyclictest0-21swapper/519:50:175
3251519995637,19cyclictest331ktimers/123:36:381
3251519995615,2cyclictest874-21mta-sts-daemon19:37:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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