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2025-06-28 - 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
Characteristics of the 20 highest latencies:
System rack6slot5.osadl.org (updated Sat Jun 28, 2025 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284899101635233,4919cyclictest20744-21kworker/0:112:38:220
28489998295146,4672cyclictest21275-21kworker/0:109:18:290
28489997655220,4534cyclictest11484-21kworker/0:008:57:370
28489997655123,4637cyclictest15588-21kworker/0:012:17:520
28489997135081,4621cyclictest24649-21kworker/0:210:41:110
28489994454770,4664cyclictest21275-21kworker/0:109:51:230
28489990504681,4365cyclictest11484-21kworker/0:009:01:530
28489989844543,4437cyclictest12258-21kworker/0:011:21:510
28489989534528,4415cyclictest26815-21kworker/0:208:40:230
28489988324656,4161cyclictest20365-21kworker/0:107:56:020
28489988314571,4255cyclictest6361-21kworker/0:007:25:070
28489988284520,4266cyclictest29592-21kworker/0:211:40:010
28489987374414,4312cyclictest24649-21kworker/0:210:56:030
28489986544382,4268cyclictest21275-21kworker/0:109:41:430
28489985934543,4039cyclictest26815-21kworker/0:208:20:000
28489985684339,4218cyclictest26815-21kworker/0:208:32:190
28489985604331,4214cyclictest6361-21kworker/0:007:22:570
28489985384514,4013cyclictest7324-21kworker/0:209:56:220
28489984884213,4252cyclictest20744-21kworker/0:112:21:440
28489984764590,3875cyclictest26815-21kworker/0:208:28:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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