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2025-07-19 - 23:27
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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 rack3slot3.osadl.org (updated Sat Jul 19, 2025 12:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2894210992sleep00-21swapper/007:06:040
3011210894sleep50-21swapper/507:07:217
2856210895sleep90-21swapper/907:05:3711
3008210793sleep20-21swapper/207:07:174
31882106100sleep80-21swapper/807:09:0010
2014050910irq/53-eth0-rx-0-21swapper/307:07:035
2014050900irq/53-eth0-rx-0-21swapper/107:06:491
323127775sleep100-21swapper/1007:09:382
321527570sleep70-21swapper/707:09:239
3242626655sleep110-21swapper/1107:05:033
296526657sleep40-21swapper/407:06:446
301225853sleep60-21swapper/607:07:218
3413993617cyclictest0-21swapper/1109:20:353
3375992826cyclictest0-21swapper/008:15:200
3413992322cyclictest0-21swapper/1109:16:593
3375992321cyclictest0-21swapper/009:30:100
337599230cyclictest0-21swapper/009:23:330
3413992120cyclictest0-21swapper/1109:14:353
341399210cyclictest0-21swapper/1108:15:483
3375992120cyclictest0-21swapper/009:16:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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