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2025-07-06 - 00:28
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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 rack4slot6.osadl.org (updated Sat Jul 05, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12619521040,96pltrace0-21swapper/507:06:265
12619521040,96pltrace0-21swapper/507:06:255
15406521020,94pltrace0-21swapper/107:09:261
15406521020,94pltrace0-21swapper/107:09:251
1261952990,89pltrace0-21swapper/207:05:232
1261952990,89pltrace0-21swapper/207:05:232
1261952930,84pltrace0-21swapper/607:05:196
1261952930,84pltrace0-21swapper/607:05:186
1548726147,10sleep70-21swapper/707:08:177
1548726147,10sleep70-21swapper/707:08:177
1530126147,10sleep30-21swapper/307:05:573
1530126147,10sleep30-21swapper/307:05:573
1548026046,10sleep00-21swapper/007:08:110
1548026046,10sleep00-21swapper/007:08:100
1545725844,10sleep40-21swapper/407:07:504
1545725844,10sleep40-21swapper/407:07:504
2622952340,2pltrace0-21swapper/711:19:477
947352330,3pltrace0-21swapper/710:50:237
1459752310,3pltrace0-21swapper/708:05:157
2128152290,3pltrace0-21swapper/709:15:137
108152280,2pltrace0-21swapper/710:35:147
1055352280,3pltrace0-21swapper/711:50:187
3009652240,3pltrace0-21swapper/712:26:577
1578599230,16cyclictest0-21swapper/011:43:440
1786552220,7pltrace0-21swapper/711:04:077
1179152190,0pltrace0-21swapper/708:00:227
3180152180,5pltrace0-21swapper/711:30:227
2514952180,0pltrace0-21swapper/710:18:067
1957752180,5pltrace0-21swapper/710:08:547
1957752180,5pltrace0-21swapper/710:08:547
15815991812,5cyclictest0-21swapper/709:14:477
1580899181,13cyclictest0-21swapper/511:57:315
1287052180,0pltrace0-21swapper/708:58:377
1055352180,0pltrace0-21swapper/711:49:417
606052160,4pltrace0-21swapper/712:38:007
2468352160,9pltrace27402-21taskset07:26:305
191422160,1sleep30-21swapper/307:15:023
15815991611,3cyclictest0-21swapper/710:04:377
15815991610,5cyclictest0-21swapper/711:27:247
1581599161,4cyclictest0-21swapper/712:10:187
1581299160,8cyclictest0-21swapper/610:00:016
15808991611,4cyclictest0-21swapper/510:21:165
15808991611,3cyclictest0-21swapper/507:22:595
15808991610,3cyclictest0-21swapper/510:02:375
1580899161,7cyclictest0-21swapper/509:52:365
1580899161,14cyclictest0-21swapper/508:48:065
1580899160,15cyclictest0-21swapper/509:41:395
1580399161,4cyclictest0-21swapper/412:17:384
1580399161,4cyclictest0-21swapper/408:27:064
1580399161,14cyclictest0-21swapper/412:09:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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