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2026-07-11 - 03:57
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Jul 11, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
42309913266,17cyclictest14-21ksoftirqd/020:50:120
42309911354,16cyclictest14-21ksoftirqd/020:15:110
42309911253,19cyclictest14-21ksoftirqd/000:05:150
42309911016,23cyclictest0-21swapper/022:10:110
42309911013,25cyclictest0-21swapper/020:55:120
42309910814,24cyclictest0-21swapper/019:10:110
42309910714,24cyclictest0-21swapper/022:45:120
4230991039,44cyclictest503-21snmpd22:15:130
42309910315,23cyclictest0-21swapper/019:55:120
42309910235,20cyclictest14-21ksoftirqd/019:40:100
42359910148,28cyclictest26-21ksoftirqd/123:55:111
42309910115,23cyclictest0-21swapper/023:35:120
42309910113,24cyclictest0-21swapper/000:30:110
42309910113,23cyclictest0-21swapper/021:55:120
42309910017,20cyclictest0-21swapper/019:35:120
4230999917,23cyclictest0-21swapper/020:30:110
4230999715,18cyclictest0-21swapper/022:00:110
4230999612,22cyclictest0-21swapper/020:05:120
156362950,5chrt15639-21kernelversion21:10:251
4235998712,60cyclictest0-21swapper/100:20:251
4230998454,19cyclictest0-21swapper/023:05:110
423599837,17cyclictest0-21swapper/123:50:111
4230998353,19cyclictest14-21ksoftirqd/020:10:170
371428325,46sleep10-21swapper/119:06:221
423599817,15cyclictest0-21swapper/120:20:111
423599817,15cyclictest0-21swapper/120:00:251
4230998138,34cyclictest14-21ksoftirqd/023:40:190
39292815,28sleep00-21swapper/019:08:410
423599809,14cyclictest0-21swapper/119:29:231
423599808,14cyclictest0-21swapper/100:05:121
423599807,16cyclictest0-21swapper/121:00:121
423599807,14cyclictest0-21swapper/123:40:121
423599807,14cyclictest0-21swapper/121:55:131
423599807,14cyclictest0-21swapper/120:10:201
423599807,12cyclictest0-21swapper/123:10:111
4235998010,13cyclictest0-21swapper/123:35:121
4235998010,13cyclictest0-21swapper/123:15:131
423599797,15cyclictest0-21swapper/100:00:111
423599797,14cyclictest0-21swapper/122:25:091
423599797,12cyclictest0-21swapper/119:55:141
423599796,15cyclictest0-21swapper/123:45:111
4235997912,53cyclictest0-21swapper/119:45:271
4235997911,13cyclictest0-21swapper/120:35:121
4230997949,17cyclictest14-21ksoftirqd/019:20:120
423599788,11cyclictest0-21swapper/122:45:131
423599787,16cyclictest0-21swapper/122:05:121
423599787,12cyclictest0-21swapper/123:25:101
4235997830,42cyclictest12588-21seq19:30:301
4235997810,13cyclictest0-21swapper/122:35:141
423599779,14cyclictest0-21swapper/121:40:221
423599778,12cyclictest0-21swapper/100:35:131
423599777,15cyclictest0-21swapper/121:35:121
423599777,13cyclictest0-21swapper/122:50:261
423599776,13cyclictest0-21swapper/123:00:251
4235997729,40cyclictest511-21apt-get22:00:111
4235997726,45cyclictest22156-21sort00:30:251
4230997750,20cyclictest14-21ksoftirqd/019:15:110
4230997748,18cyclictest14-21ksoftirqd/021:50:090
4230997742,21cyclictest14-21ksoftirqd/022:25:100
423599769,13cyclictest0-21swapper/119:50:151
423599767,12cyclictest0-21swapper/120:40:131
423599767,12cyclictest0-21swapper/120:30:131
423599767,12cyclictest0-21swapper/120:15:121
423599766,19cyclictest5798-21apt-get22:15:131
423599766,16cyclictest0-21swapper/122:55:111
423599766,12cyclictest0-21swapper/122:20:111
423599766,12cyclictest0-21swapper/121:15:121
423599765,23cyclictest23907-21apt-get23:05:111
423599758,13cyclictest0-21swapper/119:15:131
423599757,15cyclictest0-21swapper/121:30:161
423599757,13cyclictest0-21swapper/121:45:131
423599757,12cyclictest0-21swapper/123:30:131
423599757,12cyclictest0-21swapper/119:40:121
423599757,11cyclictest0-21swapper/122:30:131
423599756,14cyclictest0-21swapper/119:10:121
4235997519,50cyclictest481-21gdbus21:30:001
4230997543,22cyclictest14-21ksoftirqd/021:25:140
423599747,13cyclictest0-21swapper/119:20:151
423599747,12cyclictest0-21swapper/122:40:151
423599746,19cyclictest29446-21apt-get21:50:091
423599746,12cyclictest0-21swapper/100:25:141
423599746,11cyclictest0-21swapper/120:45:151
423599737,12cyclictest0-21swapper/121:05:131
423599736,12cyclictest0-21swapper/123:20:151
423599736,12cyclictest0-21swapper/123:20:151
423599735,23cyclictest14342-21apt-get00:10:111
4230997345,17cyclictest14-21ksoftirqd/000:15:120
4230997339,20cyclictest0-21swapper/021:30:150
423599728,59cyclictest20252-21latency_hist21:25:011
423599728,13cyclictest0-21swapper/122:10:121
423599726,18cyclictest24739-21apt-get20:05:131
423599717,15cyclictest0-21swapper/100:15:141
423599716,12cyclictest0-21swapper/120:50:131
4235997117,10cyclictest243-21systemd-journal20:55:581
4230997141,18cyclictest14-21ksoftirqd/022:20:140
4230997131,33cyclictest14-21ksoftirqd/000:20:040
4230997038,21cyclictest14-21ksoftirqd/019:25:150
423599696,15cyclictest0-21swapper/120:25:131
4230996939,23cyclictest14-21ksoftirqd/021:35:310
4230996838,19cyclictest14-21ksoftirqd/021:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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