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2025-01-13 - 11:39
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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 rackcslot6.osadl.org (updated Mon Jan 13, 2025 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2838558993830,382cyclictest0-21swapper/223:28:022
2838558993820,381cyclictest0-21swapper/200:34:012
2838564993810,1cyclictest0-21swapper/323:37:023
283855899381378,2cyclictest132509-21kworker/2:122:13:032
283855899380379,1cyclictest2975167-21kworker/2:222:35:032
283855899380378,1cyclictest2975167-21kworker/2:223:59:022
283855899379378,1cyclictest2975167-21kworker/2:223:05:032
283855899379378,1cyclictest132509-21kworker/2:121:16:022
283855899378377,1cyclictest132509-21kworker/2:119:36:032
283855899377375,1cyclictest132509-21kworker/2:120:40:032
283855899376375,1cyclictest132509-21kworker/2:121:09:032
283855899376375,1cyclictest132509-21kworker/2:120:07:032
283855899376375,1cyclictest0-21swapper/223:42:032
283855899376374,1cyclictest2975167-21kworker/2:223:47:032
283855899376374,1cyclictest132509-21kworker/2:119:16:032
2838558993760,375cyclictest3097792-21ssh00:01:022
283855899375373,1cyclictest2975167-21kworker/2:223:30:032
283855899374373,1cyclictest3094595-21kworker/2:100:25:032
283855899374373,1cyclictest2975167-21kworker/2:223:15:022
283855899374373,1cyclictest132509-21kworker/2:119:20:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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