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2025-01-21 - 22:34
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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 rack1slot1.osadl.org (updated Tue Jan 21, 2025 12:45:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103932217150,23sleep20-21swapper/207:05:292
86252199161,25sleep00-21swapper/007:05:040
103972199160,26sleep10-21swapper/107:05:331
105382197157,26sleep30-21swapper/307:07:243
1081699170,16cyclictest0-21swapper/109:15:161
299912140,0sleep10-21swapper/110:20:141
44602130,0sleep10-21swapper/109:49:341
1082499130,12cyclictest0-21swapper/209:29:062
1082499130,1cyclictest0-21swapper/212:00:142
1081699120,0cyclictest0-21swapper/112:00:141
1081299123,4cyclictest12468-21perf10:40:000
10812991210,1cyclictest9-21ksoftirqd/007:20:000
1081699119,1cyclictest0-21swapper/109:30:111
1081699109,1cyclictest0-21swapper/110:40:181
1081699108,1cyclictest0-21swapper/110:30:171
1081699103,7cyclictest21-21ksoftirqd/107:59:421
1081699100,1cyclictest0-21swapper/108:40:191
1081299103,3cyclictest14903-21perf08:25:000
1081299100,5cyclictest24340-21perf08:45:000
30372290,0sleep20-21swapper/207:50:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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