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2026-04-19 - 13:20
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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 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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