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2025-05-03 - 02:09
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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 Fri May 02, 2025 12:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1112699104325219,5209cyclictest20171-21kworker/0:110:08:530
1112699103715487,4873cyclictest9304-21kworker/0:007:52:130
111269999415255,4674cyclictest25545-21kworker/0:111:05:530
111269999125241,4660cyclictest9304-21kworker/0:007:32:430
111269998695220,4638cyclictest9304-21kworker/0:008:11:130
111269997215054,4663cyclictest20171-21kworker/0:110:40:290
111269994485011,4422cyclictest20171-21kworker/0:110:03:080
111269994454828,4606cyclictest31654-21kworker/0:212:13:340
111269993824798,4573cyclictest315-21kworker/0:209:28:180
111269993314871,4456cyclictest11427-21kworker/0:112:36:360
111269992814745,4532cyclictest9304-21kworker/0:008:38:080
111269992254713,4501cyclictest18532-21kworker/0:211:51:380
111269991784793,4374cyclictest9304-21kworker/0:008:45:430
111269991644784,4369cyclictest9304-21kworker/0:009:01:210
111269991294669,4455cyclictest25545-21kworker/0:111:18:150
111269991234779,4341cyclictest9304-21kworker/0:007:16:520
111269991204661,4448cyclictest20171-21kworker/0:110:20:460
111269991134559,4543cyclictest16590-21kworker/0:210:57:390
111269991004658,4431cyclictest9304-21kworker/0:008:30:160
111269990964650,4435cyclictest31654-21kworker/0:212:32:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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