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2024-06-15 - 12:50
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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 Jun 15, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16946521220,118pltrace0-21swapper/119:10:011
14155521220,113pltrace0-21swapper/219:05:202
14155521200,112pltrace0-21swapper/619:05:156
14155521040,89pltrace0-21swapper/719:07:197
14155521020,86pltrace0-21swapper/519:05:245
1415552950,87pltrace0-21swapper/319:07:273
1688626046,10sleep00-21swapper/019:07:150
1691025844,10sleep40-21swapper/419:07:344
1732599230,12cyclictest0-21swapper/421:15:174
2983852220,0pltrace0-21swapper/719:36:467
1267252200,4pltrace0-21swapper/723:00:197
114072200,0sleep40-21swapper/423:50:234
3222352180,1pltrace32227-21pltrace-run23:32:482
2107252180,0pltrace0-21swapper/723:17:207
17331991812,5cyclictest0-21swapper/622:59:386
17331991812,3cyclictest0-21swapper/623:54:016
1732999180,13cyclictest0-21swapper/520:39:075
17320991812,4cyclictest0-21swapper/323:10:003
17316991812,3cyclictest0-21swapper/222:17:572
1158952180,0pltrace0-21swapper/722:00:197
3267652170,11pltrace54-21ksoftirqd/419:40:004
2344252170,11pltrace0-21swapper/119:20:581
2168452170,12pltrace0-21swapper/621:17:576
213052170,12pltrace78-21ksoftirqd/720:47:207
1732999171,3cyclictest0-21swapper/519:27:025
1732999171,15cyclictest0-21swapper/520:01:155
1732999170,13cyclictest0-21swapper/523:23:595
1732099171,4cyclictest0-21swapper/320:03:403
1730899171,4cyclictest0-21swapper/019:49:270
3179352160,0pltrace0-21swapper/700:31:277
3113752160,1pltrace0-21swapper/122:33:561
2616252160,12pltrace54-21ksoftirqd/420:30:504
2616252160,0pltrace0-21swapper/720:30:267
2447352160,9pltrace54-21ksoftirqd/421:25:504
2385652160,3pltrace0-21swapper/723:21:037
2168452160,1pltrace0-21swapper/721:18:397
1733699160,4cyclictest0-21swapper/721:35:217
1733199161,13cyclictest0-21swapper/622:03:316
1733199160,8cyclictest0-21swapper/622:42:286
1733199160,3cyclictest0-21swapper/620:42:596
1733199160,14cyclictest21352-21cpuspeed_turbos00:10:176
1732999161,7cyclictest0-21swapper/523:56:365
1732999161,4cyclictest0-21swapper/500:33:385
1732999161,14cyclictest0-21swapper/523:36:005
1732999161,14cyclictest0-21swapper/523:26:355
1732999160,8cyclictest0-21swapper/519:22:145
1732999160,4cyclictest0-21swapper/523:50:415
17325991614,1cyclictest0-21swapper/422:29:284
1732599160,8cyclictest0-21swapper/400:19:224
1732599160,8cyclictest0-21swapper/400:19:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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