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2026-04-19 - 07:56
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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 Sun Apr 19, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73119911580,21cyclictest0-21swapper/020:25:120
7319991146,66cyclictest562-21runrttasks20:15:141
73199911176,21cyclictest26-21ksoftirqd/119:20:231
73119910711,81cyclictest0-21swapper/021:40:130
73119910467,26cyclictest14-21ksoftirqd/022:40:100
73119910312,30cyclictest0-21swapper/020:55:130
73119910263,27cyclictest14-21ksoftirqd/019:15:140
73119910212,28cyclictest0-21swapper/023:40:120
152221020,5chrt599-21/usr/sbin/munin20:20:330
73119910012,26cyclictest0-21swapper/019:40:130
7311999860,28cyclictest14-21ksoftirqd/000:05:110
7319999650,36cyclictest26-21ksoftirqd/100:35:131
7311999648,36cyclictest14-21ksoftirqd/023:35:110
7311999552,32cyclictest14-21ksoftirqd/021:55:150
7311999514,67cyclictest0-21swapper/000:35:110
7311999512,70cyclictest0-21swapper/021:35:260
7311999512,70cyclictest0-21swapper/020:50:140
731999949,65cyclictest24882-21runrttasks23:00:161
7319999447,32cyclictest26-21ksoftirqd/100:25:261
7311999450,32cyclictest0-21swapper/019:35:120
7311999413,67cyclictest0-21swapper/022:55:150
7311999412,66cyclictest0-21swapper/019:25:130
7311999411,70cyclictest0-21swapper/000:20:130
731999939,68cyclictest17986-21diskmemload21:10:121
7311999347,30cyclictest14-21ksoftirqd/019:10:130
7311999344,37cyclictest14-21ksoftirqd/020:15:110
7311999332,48cyclictest0-21swapper/020:30:120
7311999313,67cyclictest0-21swapper/019:20:240
7311999313,65cyclictest0-21swapper/022:35:150
7311999313,65cyclictest0-21swapper/020:45:120
7311999312,68cyclictest0-21swapper/021:25:130
7311999311,68cyclictest0-21swapper/021:20:130
7311999310,70cyclictest0-21swapper/022:00:140
7319999212,66cyclictest0-21swapper/119:50:141
7311999240,41cyclictest16363-21seq21:05:130
7311999216,59cyclictest0-21swapper/019:50:140
7311999212,65cyclictest0-21swapper/021:50:140
7311999212,65cyclictest0-21swapper/000:30:160
7311999212,64cyclictest0-21swapper/022:10:110
7311999212,64cyclictest0-21swapper/000:10:140
7311999211,69cyclictest0-21swapper/020:10:130
7311999211,67cyclictest0-21swapper/021:45:140
7311999211,67cyclictest0-21swapper/000:15:130
7311999210,67cyclictest0-21swapper/023:05:240
7311999139,40cyclictest8860-21seq23:45:110
7311999114,63cyclictest0-21swapper/020:00:140
7311999113,61cyclictest0-21swapper/023:30:140
7311999112,65cyclictest0-21swapper/023:55:170
7311999112,65cyclictest0-21swapper/000:25:240
7311999112,63cyclictest0-21swapper/021:00:120
7311999111,68cyclictest0-21swapper/000:00:140
7311999111,67cyclictest0-21swapper/023:10:110
7311999111,64cyclictest0-21swapper/022:50:120
7311999111,62cyclictest0-21swapper/020:40:140
7311999110,66cyclictest0-21swapper/020:05:130
7319999012,66cyclictest0-21swapper/122:45:251
7319999011,67cyclictest0-21swapper/122:20:121
7319999010,26cyclictest0-21swapper/121:30:141
7311999013,62cyclictest0-21swapper/021:15:140
7311999012,65cyclictest0-21swapper/023:15:110
7311999012,65cyclictest0-21swapper/019:30:230
7311999010,64cyclictest0-21swapper/019:55:120
7319998912,64cyclictest0-21swapper/120:40:121
7319998912,61cyclictest0-21swapper/123:45:121
7311998913,62cyclictest0-21swapper/022:20:140
7311998912,64cyclictest0-21swapper/023:25:240
7311998911,66cyclictest0-21swapper/023:20:120
7311998911,66cyclictest0-21swapper/023:20:120
7311998911,63cyclictest0-21swapper/022:30:100
7311998910,64cyclictest0-21swapper/022:05:130
7311998812,61cyclictest0-21swapper/023:50:130
731199876,66cyclictest17986-21diskmemload21:10:150
7311998723,51cyclictest14-21ksoftirqd/022:15:130
7311998711,61cyclictest0-21swapper/019:45:120
693028724,16sleep10-21swapper/119:08:011
7319998537,32cyclictest26-21ksoftirqd/122:50:121
7319998512,57cyclictest0-21swapper/121:50:131
7319998410,54cyclictest0-21swapper/120:35:151
7319998139,28cyclictest0-21swapper/123:15:141
7311998111,54cyclictest0-21swapper/023:00:130
731999805,55cyclictest0-21swapper/123:30:131
7311997813,41cyclictest0-21swapper/021:30:150
601927834,29sleep00-21swapper/019:05:210
731999759,48cyclictest0-21swapper/123:25:221
731199757,56cyclictest5832-21apt-get20:35:150
7319997321,32cyclictest0-21swapper/122:05:151
7319997315,36cyclictest0-21swapper/122:15:141
731199738,55cyclictest19632-21apt-get22:45:240
7319997216,36cyclictest0-21swapper/121:55:121
7319997119,36cyclictest26-21ksoftirqd/119:30:251
731199708,52cyclictest12305-21apt-get22:25:130
7319996725,28cyclictest26-21ksoftirqd/122:40:131
7319996722,26cyclictest0-21swapper/120:05:141
7319996612,34cyclictest0-21swapper/122:25:101
7319996513,33cyclictest0-21swapper/120:55:151
7319996413,30cyclictest0-21swapper/119:35:131
7319996413,28cyclictest0-21swapper/100:10:141
7319996411,32cyclictest0-21swapper/100:30:151
7319996337,9cyclictest26-21ksoftirqd/122:34:531
7319996312,31cyclictest0-21swapper/121:15:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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