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2026-08-10 - 05:12
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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 Aug 10, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178529911380,23cyclictest26-21ksoftirqd/100:05:171
377921100,5chrt3782-21sed20:00:020
17852991074,40cyclictest26-21ksoftirqd/123:30:131
17852991069,83cyclictest0-21swapper/100:25:151
178529910658,35cyclictest26-21ksoftirqd/121:15:151
178499910412,78cyclictest0-21swapper/021:00:120
178499910212,76cyclictest0-21swapper/022:30:110
178499910113,77cyclictest0-21swapper/023:25:120
178499910111,28cyclictest0-21swapper/021:50:130
178529910054,31cyclictest26-21ksoftirqd/121:10:171
178529910042,43cyclictest26-21ksoftirqd/119:50:141
17852999849,29cyclictest26-21ksoftirqd/120:35:151
17852999811,63cyclictest0-21swapper/100:15:251
17849999712,72cyclictest0-21swapper/000:20:110
1785299966,60cyclictest20295-21runrttasks23:50:121
17852999631,47cyclictest26-21ksoftirqd/123:00:131
1609429660,25sleep10-21swapper/119:05:081
17852999548,29cyclictest26-21ksoftirqd/121:35:121
17852999512,29cyclictest0-21swapper/120:55:161
17852999510,64cyclictest0-21swapper/120:30:141
17849999512,29cyclictest0-21swapper/019:15:140
1785299949,63cyclictest0-21swapper/121:45:121
17852999413,26cyclictest0-21swapper/123:45:121
17852999412,59cyclictest0-21swapper/122:20:121
17849999413,70cyclictest0-21swapper/020:45:120
17849999412,25cyclictest0-21swapper/020:40:150
17849999411,26cyclictest0-21swapper/022:00:160
1754929420,27sleep00-21swapper/019:08:480
17852999311,60cyclictest0-21swapper/122:45:121
17849999212,27cyclictest0-21swapper/022:50:110
17852999113,60cyclictest0-21swapper/122:15:121
17852999112,58cyclictest0-21swapper/121:40:151
17852999034,34cyclictest26-21ksoftirqd/122:05:151
1784999898,32cyclictest28284-21diskmemload21:10:160
17849998942,15cyclictest457-21dbus-daemon00:00:000
17852998811,57cyclictest0-21swapper/100:20:121
17852998612,55cyclictest0-21swapper/120:45:151
17852998534,33cyclictest26-21ksoftirqd/119:45:131
17852998515,52cyclictest0-21swapper/122:40:121
17849998539,11cyclictest0-21swapper/021:45:010
1784999853,44cyclictest31272-21munin-run00:20:000
1784999853,43cyclictest31052-21taskset19:45:160
17852998436,30cyclictest0-21swapper/120:50:111
17852998411,53cyclictest0-21swapper/122:10:141
17852998411,51cyclictest0-21swapper/119:35:151
1784999843,23cyclictest3581-21cstates21:30:210
1784999843,23cyclictest3581-21cstates21:30:210
17849998426,19cyclictest243-21systemd-journal20:52:330
17849998419,31cyclictest24164-21aten2.4-expect19:25:280
17852998311,52cyclictest0-21swapper/100:30:121
1784999833,42cyclictest562-21runrttasks20:55:350
1784999833,28cyclictest4258-21apt-get00:35:130
17849998310,28cyclictest0-21swapper/019:40:150
1785299827,53cyclictest0-21swapper/123:05:131
1785299825,54cyclictest0-21swapper/120:20:121
17852998231,29cyclictest0-21swapper/123:35:131
1785299816,51cyclictest10362-21chrt20:16:341
1785299809,51cyclictest0-21swapper/119:25:241
17852997831,28cyclictest26-21ksoftirqd/120:00:231
17852997829,29cyclictest0-21swapper/122:35:221
1785299777,54cyclictest0-21swapper/119:55:151
17852997533,24cyclictest0-21swapper/100:00:141
17852997530,29cyclictest0-21swapper/121:30:171
17852997530,29cyclictest0-21swapper/121:30:171
17852997528,30cyclictest0-21swapper/123:15:121
17852997528,30cyclictest0-21swapper/119:10:121
17852997428,27cyclictest0-21swapper/123:20:121
17849997150,13cyclictest8018-21apt-get23:15:120
17852997027,26cyclictest0-21swapper/122:00:161
17849997043,20cyclictest14-21ksoftirqd/021:20:300
1785299693,46cyclictest0-21swapper/119:30:141
17852996920,31cyclictest0-21swapper/100:35:141
17852996820,30cyclictest0-21swapper/120:05:141
17852996812,34cyclictest0-21swapper/120:40:131
320042670,8chrt0-21swapper/121:20:161
17852996622,24cyclictest0-21swapper/119:15:151
17852996614,31cyclictest0-21swapper/121:05:111
1785299653,46cyclictest0-21swapper/121:55:121
17852996520,28cyclictest26-21ksoftirqd/120:25:141
17852996520,27cyclictest0-21swapper/120:10:171
17852996417,28cyclictest0-21swapper/123:40:121
17852996414,30cyclictest0-21swapper/123:10:121
17849996439,19cyclictest14-21ksoftirqd/023:50:160
17849996439,19cyclictest14-21ksoftirqd/021:25:160
17849996430,28cyclictest14-21ksoftirqd/022:15:350
17852996315,30cyclictest0-21swapper/122:55:141
17852996314,30cyclictest0-21swapper/119:40:141
17852996313,32cyclictest0-21swapper/121:25:141
17852996312,32cyclictest0-21swapper/100:10:111
17852996312,32cyclictest0-21swapper/100:10:111
1784999637,16cyclictest15572-21apt-get22:05:120
17849996338,19cyclictest14-21ksoftirqd/000:05:220
17852996215,27cyclictest0-21swapper/122:25:121
17852996212,30cyclictest0-21swapper/121:50:151
17849996234,20cyclictest24929-21unixbench_singl00:00:440
17852996116,26cyclictest0-21swapper/121:00:141
1785299611,43cyclictest0-21swapper/119:20:121
1785299611,43cyclictest0-21swapper/119:20:121
17852996114,27cyclictest0-21swapper/123:55:121
17849996142,10cyclictest14-21ksoftirqd/023:00:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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