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2026-03-16 - 04:52
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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 Mon Mar 16, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256579911213,83cyclictest0-21swapper/019:50:130
256609911110,32cyclictest0-21swapper/119:30:121
25657991107,89cyclictest14-21ksoftirqd/019:30:130
256579911071,26cyclictest14-21ksoftirqd/019:25:120
256579910970,27cyclictest14-21ksoftirqd/021:55:130
256609910812,28cyclictest0-21swapper/120:40:101
256609910812,28cyclictest0-21swapper/120:25:221
256579910812,83cyclictest0-21swapper/023:20:120
256579910711,82cyclictest0-21swapper/023:15:230
256579910661,30cyclictest14-21ksoftirqd/019:15:240
256579910510,81cyclictest0-21swapper/020:40:120
256579910336,53cyclictest0-21swapper/022:55:120
256579910325,66cyclictest879-21gpm23:35:240
256579910313,32cyclictest0-21swapper/020:50:120
256579910256,32cyclictest0-21swapper/019:35:140
256579910137,49cyclictest500-21snmpd22:35:090
256579910053,34cyclictest14-21ksoftirqd/020:25:250
25657999933,54cyclictest0-21swapper/000:20:110
25657999852,34cyclictest14-21ksoftirqd/000:00:160
25657999850,34cyclictest14-21ksoftirqd/021:30:120
25657999828,50cyclictest0-21swapper/022:10:120
25657999751,34cyclictest14-21ksoftirqd/020:00:240
25657999711,70cyclictest0-21swapper/023:25:130
25657999646,33cyclictest14-21ksoftirqd/000:25:130
25657999547,34cyclictest14-21ksoftirqd/021:45:130
25657999545,32cyclictest14-21ksoftirqd/022:45:100
25657999530,44cyclictest0-21swapper/020:45:130
25657999528,49cyclictest0-21swapper/021:10:140
25657999446,31cyclictest14-21ksoftirqd/023:45:150
25657999430,44cyclictest0-21swapper/020:20:130
25657999427,50cyclictest0-21swapper/020:05:230
25657999426,47cyclictest0-21swapper/019:10:110
25657999411,66cyclictest0-21swapper/021:50:120
2565799936,67cyclictest548-21runrttasks21:00:090
25657999342,35cyclictest14-21ksoftirqd/022:30:130
25657999327,47cyclictest0-21swapper/021:15:230
25657999311,63cyclictest0-21swapper/019:20:120
25657999311,60cyclictest0-21swapper/023:05:160
25657999311,60cyclictest0-21swapper/023:05:160
25657999241,36cyclictest14-21ksoftirqd/020:30:140
25657999223,51cyclictest0-21swapper/022:50:130
25657999213,62cyclictest0-21swapper/000:35:140
25657999140,32cyclictest14-21ksoftirqd/019:40:130
25657999125,46cyclictest0-21swapper/022:15:150
25657999114,57cyclictest0-21swapper/023:30:110
25657999112,60cyclictest0-21swapper/021:40:110
2565799907,61cyclictest9884-21seq19:55:150
2565799907,61cyclictest3969-21runrttasks00:10:140
25657999028,44cyclictest0-21swapper/022:25:110
25657998926,44cyclictest0-21swapper/023:40:130
25657998911,62cyclictest0-21swapper/020:35:130
25657998811,55cyclictest0-21swapper/023:55:140
25657998717,50cyclictest0-21swapper/020:10:130
25657998715,51cyclictest0-21swapper/021:35:120
25657998715,49cyclictest0-21swapper/021:25:110
25657998629,33cyclictest14-21ksoftirqd/021:20:130
25657998617,49cyclictest0-21swapper/022:40:120
25657998617,49cyclictest0-21swapper/022:00:150
25657998617,24cyclictest0-21swapper/020:55:100
25657998615,51cyclictest0-21swapper/023:50:100
25657998615,49cyclictest0-21swapper/019:45:120
25657998518,47cyclictest0-21swapper/022:20:120
25657998516,49cyclictest0-21swapper/023:00:110
25657998320,22cyclictest0-21swapper/000:15:120
25657998318,22cyclictest0-21swapper/023:10:110
25657998315,49cyclictest0-21swapper/020:15:130
25657998237,28cyclictest0-21swapper/000:30:110
25657998116,48cyclictest0-21swapper/021:05:140
25657997916,46cyclictest0-21swapper/000:05:130
250502775,59sleep00-21swapper/019:05:320
25660997132,23cyclictest26-21ksoftirqd/100:20:351
25660997110,41cyclictest6727-21apt-get21:15:161
246222715,25sleep124635-21awk19:05:261
25657997011,37cyclictest14-21ksoftirqd/022:05:130
25660996813,34cyclictest0-21swapper/100:05:121
25660996731,28cyclictest30226-21basename20:50:171
25660996242,13cyclictest26-21ksoftirqd/119:40:001
25660996144,11cyclictest26-21ksoftirqd/122:55:011
25660996142,11cyclictest26-21ksoftirqd/100:35:221
25660996042,11cyclictest26-21ksoftirqd/123:00:001
25660996041,13cyclictest26-21ksoftirqd/120:10:011
25660995942,10cyclictest26-21ksoftirqd/121:09:011
25660995942,10cyclictest26-21ksoftirqd/119:15:111
25660995941,11cyclictest26-21ksoftirqd/122:40:001
25660995940,11cyclictest26-21ksoftirqd/121:10:211
25660995931,11cyclictest500-21snmpd19:20:531
2566099585,15cyclictest17503-21apt-get20:15:131
25660995841,11cyclictest26-21ksoftirqd/122:00:011
25660995841,10cyclictest26-21ksoftirqd/123:30:011
25660995840,11cyclictest26-21ksoftirqd/123:20:001
25660995840,11cyclictest26-21ksoftirqd/122:20:001
25660995840,11cyclictest26-21ksoftirqd/121:40:221
25660995840,10cyclictest26-21ksoftirqd/121:20:101
25660995840,10cyclictest26-21ksoftirqd/120:15:011
25660995839,12cyclictest26-21ksoftirqd/120:50:011
25660995839,12cyclictest26-21ksoftirqd/100:00:011
25660995839,11cyclictest26-21ksoftirqd/121:35:141
25660995828,11cyclictest500-21snmpd22:49:211
173042580,5sleep117303-21/usr/sbin/munin21:45:151
25660995739,11cyclictest26-21ksoftirqd/123:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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