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2025-06-23 - 21:30
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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 Mon Jun 23, 2025 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22499996735123,4539cyclictest10362-21kworker/0:208:04:510
22499996565112,4532cyclictest30729-21kworker/0:108:35:400
22499996115092,4508cyclictest30205-21kworker/0:111:56:100
22499995325053,4468cyclictest10362-21kworker/0:207:52:580
22499990814543,4533cyclictest15567-21kworker/0:109:19:080
22499989284567,4350cyclictest8576-21kworker/0:112:09:080
22499989144557,4346cyclictest19206-21kworker/0:012:34:260
22499988924546,4335cyclictest30729-21kworker/0:108:54:040
22499988774543,4329cyclictest10362-21kworker/0:207:32:370
22499987864660,4076cyclictest14856-21kworker/0:110:12:060
22499987404445,4272cyclictest14856-21kworker/0:110:22:450
22499987334334,4348cyclictest10362-21kworker/0:207:46:550
22499986684434,4223cyclictest12653-21kworker/0:211:22:260
22499986684416,4229cyclictest15567-21kworker/0:109:31:070
22499984934447,4035cyclictest10362-21kworker/0:207:40:150
22499984394538,3898cyclictest24232-21kworker/0:107:13:380
22499982554204,4037cyclictest12653-21kworker/0:211:34:110
22499981284240,3837cyclictest30729-21kworker/0:108:47:440
22499981244064,4055cyclictest30205-21kworker/0:111:49:350
22499980944296,3747cyclictest8576-21kworker/0:112:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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