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2026-05-27 - 08:05
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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 Wed May 27, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146579912712,33cyclictest0-21swapper/019:10:130
146579912711,32cyclictest0-21swapper/020:00:130
146579912512,36cyclictest0-21swapper/019:50:120
146579912511,37cyclictest0-21swapper/023:30:130
146579911913,33cyclictest0-21swapper/022:35:110
146579911612,37cyclictest0-21swapper/019:30:110
146619910872,25cyclictest26-21ksoftirqd/120:15:221
146619910871,25cyclictest26-21ksoftirqd/121:20:131
146619910666,27cyclictest26-21ksoftirqd/123:00:221
146619910665,28cyclictest26-21ksoftirqd/121:15:131
146619910424,68cyclictest0-21swapper/121:25:121
146579910313,31cyclictest0-21swapper/023:55:120
146579910312,78cyclictest0-21swapper/020:40:120
146579910011,30cyclictest0-21swapper/020:50:150
146579910011,30cyclictest0-21swapper/020:50:150
14661999952,34cyclictest26-21ksoftirqd/122:20:161
14661999750,35cyclictest26-21ksoftirqd/100:25:131
14661999616,67cyclictest0-21swapper/100:00:131
1466199947,66cyclictest801-21gpm00:10:141
14661999443,36cyclictest26-21ksoftirqd/122:40:121
14661999441,37cyclictest26-21ksoftirqd/123:10:131
14661999422,51cyclictest0-21swapper/120:55:121
14661999421,53cyclictest0-21swapper/119:25:141
14661999420,53cyclictest0-21swapper/122:30:111
14661999413,63cyclictest0-21swapper/119:40:111
14661999411,66cyclictest0-21swapper/121:40:111
14661999411,31cyclictest0-21swapper/121:30:141
14661999339,36cyclictest26-21ksoftirqd/100:35:141
14661999339,36cyclictest26-21ksoftirqd/100:35:131
14661999314,65cyclictest0-21swapper/123:20:101
14661999312,60cyclictest0-21swapper/120:05:141
14661999235,34cyclictest26-21ksoftirqd/120:10:151
14661999220,54cyclictest0-21swapper/119:15:111
14661999220,53cyclictest0-21swapper/122:10:111
14661999219,52cyclictest0-21swapper/119:55:131
14661999213,64cyclictest0-21swapper/121:45:131
14661999135,38cyclictest15623-21seq23:45:131
14661999121,51cyclictest0-21swapper/123:50:231
14661999112,62cyclictest0-21swapper/120:50:141
14661999112,62cyclictest0-21swapper/120:50:141
14661999112,59cyclictest0-21swapper/120:40:131
14661999040,31cyclictest26-21ksoftirqd/121:35:151
14661999022,50cyclictest2210-21taskset23:05:271
14661999020,50cyclictest0-21swapper/123:35:121
14661999020,50cyclictest0-21swapper/123:25:121
14661999020,50cyclictest0-21swapper/119:10:121
14661999020,49cyclictest0-21swapper/120:30:251
14661999019,52cyclictest0-21swapper/122:45:151
14661999019,52cyclictest0-21swapper/122:45:151
14661999019,49cyclictest0-21swapper/122:15:111
14661999014,59cyclictest0-21swapper/123:55:141
14661999012,59cyclictest0-21swapper/120:45:141
14661999011,61cyclictest0-21swapper/122:05:101
14657999011,65cyclictest0-21swapper/023:05:150
14661998940,32cyclictest26-21ksoftirqd/122:50:131
14661998925,41cyclictest25642-21diskmemload21:10:121
14661998921,45cyclictest0-21swapper/100:15:121
14661998921,45cyclictest0-21swapper/100:15:121
14661998920,50cyclictest0-21swapper/121:05:141
14661998920,49cyclictest0-21swapper/119:20:121
14661998920,48cyclictest0-21swapper/121:55:111
14661998913,58cyclictest0-21swapper/120:00:141
14661998912,56cyclictest0-21swapper/119:50:151
14661998911,58cyclictest0-21swapper/122:00:151
1421728919,25sleep00-21swapper/019:07:200
14661998822,46cyclictest0-21swapper/122:35:121
14661998821,46cyclictest0-21swapper/122:25:141
14661998820,50cyclictest0-21swapper/120:20:131
14661998819,49cyclictest0-21swapper/120:25:121
14661998819,48cyclictest0-21swapper/100:05:141
14661998811,58cyclictest0-21swapper/119:45:121
14661998721,48cyclictest0-21swapper/100:20:121
14661998719,47cyclictest0-21swapper/122:55:141
14661998619,45cyclictest0-21swapper/123:30:111
14661998611,57cyclictest0-21swapper/119:35:121
14657998637,32cyclictest14-21ksoftirqd/023:35:140
1466199856,53cyclictest31707-21taskset00:30:131
14661998520,46cyclictest0-21swapper/120:35:161
14661998519,46cyclictest0-21swapper/123:40:131
14661998518,50cyclictest0-21swapper/121:00:231
14661998419,46cyclictest0-21swapper/123:15:131
14661998311,54cyclictest0-21swapper/121:50:141
1466199827,54cyclictest0-21swapper/119:30:141
1424527843,26sleep10-21swapper/119:07:391
14657997438,30cyclictest14-21ksoftirqd/021:00:000
14657997231,10cyclictest14-21ksoftirqd/000:10:270
1465799717,44cyclictest36-21kcompactd021:00:250
14657997113,38cyclictest0-21swapper/023:45:110
14657996924,21cyclictest31734-21aten2.4-expect00:30:160
14657996834,26cyclictest14-21ksoftirqd/022:55:370
14657996811,33cyclictest32240-21apt-get23:00:150
14657996734,20cyclictest14-21ksoftirqd/019:15:360
14657996712,34cyclictest0-21swapper/022:00:140
14657996637,10cyclictest14-21ksoftirqd/019:35:350
14657996636,23cyclictest14-21ksoftirqd/000:20:200
14657996613,33cyclictest0-21swapper/021:55:130
14657996532,28cyclictest14-21ksoftirqd/022:40:330
14657996435,17cyclictest14-21ksoftirqd/022:32:180
14657996434,23cyclictest14-21ksoftirqd/021:05:310
1465799633,54cyclictest17839-21aten2.4-expect23:50:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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