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2025-12-22 - 23:57
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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 Mon Dec 22, 2025 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21692521350,131pltrace0-21swapper/507:05:135
21692521350,131pltrace0-21swapper/507:05:135
21692521320,128pltrace0-21swapper/107:05:041
21692521320,128pltrace0-21swapper/107:05:031
21692521110,94pltrace0-21swapper/307:05:163
21692521110,94pltrace0-21swapper/307:05:163
21692521110,103pltrace0-21swapper/607:05:126
21692521110,103pltrace0-21swapper/607:05:126
21692521060,102pltrace0-21swapper/207:05:142
21692521060,102pltrace0-21swapper/207:05:142
2169252990,93pltrace0-21swapper/707:05:147
2169252990,93pltrace0-21swapper/707:05:147
2434025945,10sleep00-21swapper/007:07:220
2434025945,10sleep00-21swapper/007:07:220
2441825844,10sleep40-21swapper/407:08:304
2441825844,10sleep40-21swapper/407:08:304
2023952290,3pltrace0-21swapper/709:55:167
1187852270,2pltrace0-21swapper/709:40:257
24714992515,9cyclictest507-17jbd2/dm-0-808:20:011
2474499240,17cyclictest0-21swapper/709:20:077
2193752200,1pltrace21942-21pltrace-run08:59:075
1914852200,7pltrace0-21swapper/708:55:137
1636052200,4pltrace0-21swapper/708:50:007
1528352200,14pltrace16124-21cstates07:50:135
2874452190,0pltrace0-21swapper/712:09:477
2472099190,17cyclictest3236-21cstates08:25:122
749052180,3pltrace0-21swapper/712:34:077
2971252180,12pltrace30444-21tr11:10:145
24741991810,7cyclictest0-21swapper/610:56:216
24736991815,2cyclictest0-21swapper/512:28:205
2471499180,1cyclictest0-21swapper/107:40:261
243052180,0pltrace0-21swapper/708:27:467
2475452170,0pltrace0-21swapper/709:05:487
2474199172,12cyclictest0-21swapper/609:13:106
24741991711,5cyclictest0-21swapper/608:14:406
24741991711,3cyclictest0-21swapper/607:44:466
2474199170,17cyclictest0-21swapper/608:00:286
2474199170,13cyclictest0-21swapper/611:20:256
2473699171,15cyclictest0-21swapper/511:49:235
2473699171,15cyclictest0-21swapper/508:21:025
24727991714,2cyclictest1178-21runrttasks10:32:203
24727991711,5cyclictest0-21swapper/310:03:133
2471499170,16cyclictest0-21swapper/111:25:001
2471199171,8cyclictest0-21swapper/007:33:510
2471199171,15cyclictest0-21swapper/009:38:430
1914852170,2pltrace0-21swapper/708:54:227
1249852170,1pltrace13816-21perl07:45:167
1124652170,14pltrace0-21swapper/511:34:215
352152160,2pltrace0-21swapper/709:28:447
3153352160,4pltrace1863-21chrt12:18:397
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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