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2026-04-29 - 09:26
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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 rack3slot6.osadl.org (updated Wed Apr 29, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
203759911684,19cyclictest0-21swapper/021:25:130
203759911080,20cyclictest14-21ksoftirqd/020:35:240
203759910959,40cyclictest14-21ksoftirqd/023:35:120
203779910658,32cyclictest26-21ksoftirqd/121:40:151
203779910450,34cyclictest26-21ksoftirqd/121:45:121
203779910414,25cyclictest0-21swapper/122:45:151
203779910411,26cyclictest0-21swapper/122:35:141
203779910411,26cyclictest0-21swapper/122:35:141
203779910312,30cyclictest0-21swapper/119:30:141
203779910312,29cyclictest0-21swapper/121:30:161
203779910312,23cyclictest0-21swapper/100:15:141
203779910213,25cyclictest0-21swapper/120:30:141
203779910213,25cyclictest0-21swapper/100:20:151
203779910211,26cyclictest0-21swapper/119:25:151
203779910211,25cyclictest0-21swapper/123:25:141
203779910211,24cyclictest0-21swapper/123:30:141
203779910112,27cyclictest0-21swapper/120:15:141
203779910111,23cyclictest0-21swapper/122:15:261
203779910014,22cyclictest0-21swapper/122:55:141
203779910013,23cyclictest0-21swapper/122:05:161
203779910012,27cyclictest0-21swapper/119:10:151
203779910011,27cyclictest0-21swapper/100:10:151
203779910011,26cyclictest0-21swapper/123:50:111
203779910010,26cyclictest0-21swapper/100:00:121
203759910070,18cyclictest0-21swapper/023:30:120
20377999910,26cyclictest0-21swapper/122:25:231
20375999964,20cyclictest14-21ksoftirqd/019:40:120
20377999812,24cyclictest0-21swapper/123:55:151
20377999811,27cyclictest0-21swapper/123:05:121
20377999811,23cyclictest0-21swapper/120:40:131
20377999810,26cyclictest0-21swapper/122:00:131
20377999712,25cyclictest0-21swapper/123:40:161
20375999766,21cyclictest14-21ksoftirqd/022:20:120
20377999612,25cyclictest0-21swapper/120:05:141
20377999611,28cyclictest0-21swapper/119:15:151
20375999664,21cyclictest14-21ksoftirqd/023:00:240
20375999662,22cyclictest14-21ksoftirqd/019:20:250
20375999611,72cyclictest0-21swapper/022:10:130
20375999563,21cyclictest14-21ksoftirqd/021:30:150
20377999413,29cyclictest0-21swapper/120:20:151
20377999412,60cyclictest0-21swapper/122:20:141
20375999459,23cyclictest14-21ksoftirqd/021:35:130
20375999211,69cyclictest0-21swapper/022:15:240
20375999159,22cyclictest14-21ksoftirqd/019:45:110
20377999011,24cyclictest0-21swapper/120:50:121
20375999051,28cyclictest14-21ksoftirqd/020:30:150
20375998949,26cyclictest14-21ksoftirqd/021:15:150
20377998814,28cyclictest0-21swapper/122:40:141
20377998812,30cyclictest0-21swapper/120:55:141
20375998853,24cyclictest14-21ksoftirqd/019:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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