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2023-12-09 - 09:05
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot8.osadl.org (updated Sat Dec 09, 2023 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7189995306,16cyclictest0-21swapper/020:10:010
67652524505,12sleep10-21swapper/119:06:071
719099501411,46cyclictest28882-21cut20:10:011
718999475398,51cyclictest0-21swapper/019:10:070
719099426347,48cyclictest0-21swapper/119:10:061
71132333309,16sleep00-21swapper/019:09:340
7190998712,61cyclictest0-21swapper/123:52:591
7190998712,61cyclictest0-21swapper/123:52:581
719099819,60cyclictest0-21swapper/121:27:591
227799800,4rtkit-daemon2276-21rtkit-daemon23:35:000
227799790,4rtkit-daemon2276-21rtkit-daemon22:38:381
227799760,4rtkit-daemon2276-21rtkit-daemon23:30:251
227799750,4rtkit-daemon2276-21rtkit-daemon00:20:551
227799750,4rtkit-daemon2276-21rtkit-daemon00:08:061
227799740,4rtkit-daemon2276-21rtkit-daemon19:46:471
227799740,4rtkit-daemon2276-21rtkit-daemon19:19:061
7189997361,8cyclictest19129-21ssh23:59:590
7189997361,8cyclictest0-21swapper/000:21:590
7189997312,55cyclictest0-21swapper/000:03:590
227799730,34rtkit-daemon2276-21rtkit-daemon00:26:371
7190997213,45cyclictest0-21swapper/120:36:591
227799720,5rtkit-daemon2276-21rtkit-daemon22:52:590
227799720,4rtkit-daemon2276-21rtkit-daemon22:19:091
227799710,5rtkit-daemon2276-21rtkit-daemon20:14:270
227799710,4rtkit-daemon2276-21rtkit-daemon23:03:540
227799710,4rtkit-daemon2276-21rtkit-daemon20:46:320
227799710,4rtkit-daemon2276-21rtkit-daemon20:33:160
227799710,4rtkit-daemon2276-21rtkit-daemon20:22:060
227799710,4rtkit-daemon2276-21rtkit-daemon19:45:470
227799710,4rtkit-daemon2276-21rtkit-daemon19:17:360
227799700,4rtkit-daemon2276-21rtkit-daemon23:40:100
227799700,4rtkit-daemon2276-21rtkit-daemon23:29:441
227799700,4rtkit-daemon2276-21rtkit-daemon22:01:180
227799700,4rtkit-daemon2276-21rtkit-daemon20:52:061
227799700,4rtkit-daemon2276-21rtkit-daemon20:26:420
227799700,4rtkit-daemon2276-21rtkit-daemon19:50:311
227799700,4rtkit-daemon2276-21rtkit-daemon00:37:010
227799700,4rtkit-daemon2276-21rtkit-daemon00:27:210
7190996922,35cyclictest0-21swapper/123:14:591
7190996912,42cyclictest0-21swapper/119:23:581
227799690,4rtkit-daemon2276-21rtkit-daemon22:21:080
227799690,4rtkit-daemon2276-21rtkit-daemon21:29:230
227799690,4rtkit-daemon2276-21rtkit-daemon20:50:560
227799690,4rtkit-daemon2276-21rtkit-daemon20:25:421
227799690,4rtkit-daemon2276-21rtkit-daemon19:32:010
227799690,4rtkit-daemon2276-21rtkit-daemon19:26:510
227799690,3rtkit-daemon2276-21rtkit-daemon20:37:020
7189996849,15cyclictest0-21swapper/023:16:590
227799680,4rtkit-daemon2276-21rtkit-daemon23:14:440
227799680,4rtkit-daemon2276-21rtkit-daemon22:11:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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