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2026-08-03 - 20:53
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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 100 highest latencies:
System rack4slot6.osadl.org (updated Mon Aug 03, 2026 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24910521050,100pltrace0-21swapper/107:05:161
179542910,0sleep50-21swapper/511:02:015
2769552890,73pltrace0-21swapper/707:08:057
2769552880,84pltrace0-21swapper/307:06:443
2491052800,73pltrace0-21swapper/207:05:122
2491052730,57pltrace0-21swapper/607:05:126
2491052670,59pltrace0-21swapper/507:05:525
2785826441,18sleep40-21swapper/407:08:294
2555325945,10sleep00-21swapper/007:05:040
1241652490,0pltrace0-21swapper/210:56:132
1241652450,0pltrace0-21swapper/711:00:167
228152410,1sleep40-21swapper/411:06:334
899152400,0pltrace0-21swapper/210:21:132
2945952390,0pltrace0-21swapper/712:21:067
2945952390,0pltrace0-21swapper/712:21:067
1412452380,2pltrace0-21swapper/710:26:377
3109852370,7pltrace78-21ksoftirqd/711:47:197
692652360,6pltrace78-21ksoftirqd/709:18:497
692652360,6pltrace78-21ksoftirqd/709:18:497
2593452350,7pltrace78-21ksoftirqd/710:07:367
2819799320,1cyclictest0-21swapper/609:50:106
2818399320,1cyclictest0-21swapper/312:10:023
2818399320,1cyclictest0-21swapper/312:10:023
1565352320,4pltrace0-21swapper/709:58:027
28199993129,1cyclictest0-21swapper/710:45:007
2797152300,0pltrace0-21swapper/709:05:107
2263352290,3pltrace0-21swapper/711:11:147
1241652290,1pltrace31049-21diskmemload11:00:007
28179992826,1cyclictest232442sleep210:05:022
2263352280,4pltrace0-21swapper/711:09:477
2595052270,6pltrace78-21ksoftirqd/711:44:107
1722352270,8pltrace0-21swapper/709:30:157
384352260,0pltrace0-21swapper/711:51:157
2946952260,5pltrace0-21swapper/710:44:287
157292260,1sleep50-21swapper/510:29:085
3262052250,7pltrace78-21ksoftirqd/709:42:597
1565352240,6pltrace78-21ksoftirqd/710:00:357
1406852240,7pltrace78-21ksoftirqd/712:04:377
1064552230,5pltrace78-21ksoftirqd/711:26:397
1400752210,13pltrace1146-21snmpd08:37:535
384352200,17pltrace54-21ksoftirqd/411:53:034
1239952200,1pltrace12403-21pltrace-run12:31:155
1239952200,1pltrace12403-21pltrace-run12:31:155
2516252190,0pltrace0-21swapper/708:58:207
727752180,13pltrace0-21swapper/212:30:382
727752180,13pltrace0-21swapper/212:30:382
28199991814,3cyclictest16020-21needreboot08:40:177
28183991814,2cyclictest0-21swapper/307:23:443
2817199180,10cyclictest1146-21snmpd10:44:190
1722352180,12pltrace0-21swapper/209:30:172
896852170,12pltrace0-21swapper/511:58:455
28192991711,3cyclictest0-21swapper/512:28:535
2819299170,15cyclictest0-21swapper/510:31:095
28188991713,3cyclictest0-21swapper/408:40:504
2818899171,3cyclictest0-21swapper/407:53:074
28179991711,4cyclictest0-21swapper/211:58:542
28174991712,4cyclictest7125-21fschecks_time08:25:151
2817199171,15cyclictest0-21swapper/008:44:060
1571552170,11pltrace0-21swapper/207:45:002
1292652170,0pltrace0-21swapper/707:39:117
3247952160,11pltrace0-21swapper/508:15:005
28199991613,2cyclictest0-21swapper/711:20:127
28199991611,3cyclictest0-21swapper/707:19:187
28199991610,5cyclictest0-21swapper/707:45:367
2819999160,8cyclictest0-21swapper/709:01:157
28197991611,3cyclictest0-21swapper/608:51:126
2819799161,8cyclictest0-21swapper/612:20:016
2819799161,8cyclictest0-21swapper/612:20:016
2819799160,2cyclictest15725-21ssh10:29:076
2819799160,15cyclictest31449-21ssh09:10:076
2819799160,15cyclictest0-21swapper/610:22:296
2819299161,8cyclictest0-21swapper/507:28:155
2819299161,14cyclictest0-21swapper/508:46:115
2819299160,15cyclictest0-21swapper/511:45:385
28188991612,3cyclictest0-21swapper/409:04:424
28188991611,2cyclictest0-21swapper/409:41:154
28188991610,5cyclictest0-21swapper/407:29:574
2818899161,8cyclictest0-21swapper/407:32:214
2818899161,14cyclictest0-21swapper/408:28:024
28183991611,3cyclictest0-21swapper/308:46:023
2818399161,8cyclictest0-21swapper/309:24:583
2818399161,7cyclictest0-21swapper/307:56:153
2818399161,4cyclictest0-21swapper/309:15:093
2818399161,4cyclictest0-21swapper/309:15:093
28179991613,2cyclictest0-21swapper/209:13:462
28179991612,3cyclictest0-21swapper/207:30:062
2817999161,8cyclictest0-21swapper/208:27:232
2817999161,8cyclictest0-21swapper/207:21:362
2817999160,8cyclictest0-21swapper/212:29:222
2817999160,4cyclictest0-21swapper/208:08:252
2817999160,15cyclictest0-21swapper/207:47:392
2817499160,15cyclictest0-21swapper/109:03:371
28171991611,3cyclictest0-21swapper/008:06:280
2817199161,8cyclictest0-21swapper/010:54:580
2817199161,14cyclictest0-21swapper/011:48:090
2817199160,15cyclictest0-21swapper/010:08:580
1412452160,12pltrace54-21ksoftirqd/410:30:224
1051252160,11pltrace0-21swapper/509:55:555
896852150,11pltrace54-21ksoftirqd/411:58:374
727752150,0pltrace0-21swapper/712:30:487
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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