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2025-08-22 - 00:11
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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 Thu Aug 21, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14966999827,936cyclictest0-21swapper/009:00:230
146422950931,13sleep10-21swapper/107:07:071
1496799917787,60cyclictest0-21swapper/109:00:231
147292728703,18sleep00-21swapper/007:07:570
1496699450376,45cyclictest0-21swapper/007:10:260
1496799368297,41cyclictest0-21swapper/107:10:261
149679911613,70cyclictest0-21swapper/107:23:001
14966999512,78cyclictest0-21swapper/011:04:580
105842890,4sleep010585-21ssh09:36:350
216899860,4rtkit-daemon2167-21rtkit-daemon11:36:041
14966998469,9cyclictest0-21swapper/009:47:590
14967998345,19cyclictest0-21swapper/112:17:581
14966998317,59cyclictest0-21swapper/009:10:000
216899810,4rtkit-daemon2167-21rtkit-daemon11:23:191
14967998110,57cyclictest0-21swapper/110:06:591
14966998113,59cyclictest0-21swapper/007:59:000
14966998015,58cyclictest0-21swapper/011:43:590
14966998013,59cyclictest0-21swapper/010:55:590
216899780,5rtkit-daemon2167-21rtkit-daemon12:30:361
216899780,5rtkit-daemon2167-21rtkit-daemon12:07:351
216899780,4rtkit-daemon2167-21rtkit-daemon11:40:141
14967997816,41cyclictest0-21swapper/111:59:591
216899770,4rtkit-daemon2167-21rtkit-daemon10:11:331
14967997716,40cyclictest0-21swapper/111:15:581
14966997722,49cyclictest0-21swapper/009:23:590
216899760,5rtkit-daemon2167-21rtkit-daemon09:23:011
216899750,5rtkit-daemon2167-21rtkit-daemon12:25:211
216899750,4rtkit-daemon2167-21rtkit-daemon11:09:091
216899750,4rtkit-daemon2167-21rtkit-daemon10:33:581
14967997512,49cyclictest0-21swapper/110:43:591
14966997416,37cyclictest0-21swapper/007:41:590
216899730,5rtkit-daemon2167-21rtkit-daemon07:45:221
216899730,4rtkit-daemon2167-21rtkit-daemon10:24:381
216899730,4rtkit-daemon2167-21rtkit-daemon07:19:161
14966997324,32cyclictest0-21swapper/007:39:590
14966997320,38cyclictest0-21swapper/011:05:020
216899720,4rtkit-daemon2167-21rtkit-daemon12:37:011
216899720,3rtkit-daemon2167-21rtkit-daemon09:57:481
216899720,11rtkit-daemon0-21swapper/011:27:041
14966997212,53cyclictest0-21swapper/008:59:000
216899710,4rtkit-daemon2167-21rtkit-daemon12:21:151
216899710,4rtkit-daemon2167-21rtkit-daemon09:43:171
216899710,3rtkit-daemon2167-21rtkit-daemon09:26:131
14966997121,35cyclictest0-21swapper/008:26:590
14966997120,36cyclictest0-21swapper/011:38:000
216899700,4rtkit-daemon2167-21rtkit-daemon12:28:520
216899700,4rtkit-daemon2167-21rtkit-daemon09:11:261
216899700,4rtkit-daemon2167-21rtkit-daemon08:57:071
216899700,3rtkit-daemon2167-21rtkit-daemon09:34:571
1496799707,38cyclictest0-21swapper/109:50:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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