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2026-03-10 - 15:43
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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 Tue Mar 10, 2026 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111339910874,20cyclictest14-21ksoftirqd/008:25:160
111339910874,20cyclictest14-21ksoftirqd/008:25:150
1556921040,5sleep10-21swapper/107:20:181
10741210422,37sleep00-21swapper/007:07:450
11133999969,17cyclictest14-21ksoftirqd/009:15:120
11133999865,20cyclictest0-21swapper/011:20:150
11133999668,18cyclictest14-21ksoftirqd/010:10:140
11133999566,17cyclictest14-21ksoftirqd/007:45:140
11133999566,16cyclictest0-21swapper/011:45:130
11133999565,18cyclictest0-21swapper/011:55:100
11133999366,17cyclictest14-21ksoftirqd/010:25:140
11133999365,19cyclictest14-21ksoftirqd/011:30:110
11133999361,20cyclictest14-21ksoftirqd/008:15:140
11133999262,19cyclictest14-21ksoftirqd/011:15:130
11133999158,21cyclictest14-21ksoftirqd/008:30:120
11135998918,31cyclictest26-21ksoftirqd/111:10:121
11133998960,17cyclictest14-21ksoftirqd/010:15:100
11133998959,19cyclictest14-21ksoftirqd/009:35:130
1068028934,44sleep10-21swapper/107:07:061
11133998862,15cyclictest14-21ksoftirqd/009:30:110
11133998859,19cyclictest14-21ksoftirqd/012:15:140
11133998857,21cyclictest14-21ksoftirqd/011:00:140
11133998857,20cyclictest14-21ksoftirqd/009:55:100
11133998757,20cyclictest14-21ksoftirqd/010:05:120
11133998653,21cyclictest14-21ksoftirqd/012:00:140
11133998554,20cyclictest14-21ksoftirqd/007:30:130
11133998554,20cyclictest14-21ksoftirqd/007:30:120
11133998458,18cyclictest14-21ksoftirqd/007:15:130
11133998453,19cyclictest14-21ksoftirqd/009:10:140
11133998453,18cyclictest14-21ksoftirqd/011:25:120
11133998451,21cyclictest14-21ksoftirqd/009:50:140
11133998451,20cyclictest14-21ksoftirqd/008:45:130
11133998451,20cyclictest14-21ksoftirqd/007:55:140
11133998355,20cyclictest14-21ksoftirqd/009:25:140
11133998355,18cyclictest14-21ksoftirqd/011:40:150
11133998354,19cyclictest14-21ksoftirqd/008:10:130
11133998353,20cyclictest14-21ksoftirqd/012:10:150
11133998349,20cyclictest14-21ksoftirqd/008:05:230
11133998251,19cyclictest14-21ksoftirqd/008:50:240
11133998251,19cyclictest14-21ksoftirqd/007:10:120
11133998213,27cyclictest0-21swapper/007:35:150
11133998052,18cyclictest14-21ksoftirqd/012:30:140
11133998052,16cyclictest14-21ksoftirqd/007:40:210
11133998012,59cyclictest0-21swapper/010:50:210
11133997811,27cyclictest0-21swapper/009:45:130
11133997749,17cyclictest14-21ksoftirqd/010:45:150
11133997745,20cyclictest14-21ksoftirqd/007:20:140
1113399769,53cyclictest19222-21chrt12:05:150
11133997645,20cyclictest14-21ksoftirqd/010:20:110
11133997644,19cyclictest14-21ksoftirqd/007:50:110
11133997546,24cyclictest14-21ksoftirqd/009:00:110
11133997442,21cyclictest14-21ksoftirqd/011:10:130
11133997439,22cyclictest14-21ksoftirqd/010:55:150
11133997439,22cyclictest14-21ksoftirqd/010:55:140
11133997341,25cyclictest14-21ksoftirqd/011:05:130
1113399728,51cyclictest548-21runrttasks09:20:130
1113399728,51cyclictest548-21runrttasks09:20:120
11133997245,20cyclictest14-21ksoftirqd/011:35:130
11133997237,23cyclictest14-21ksoftirqd/008:35:160
11133997234,28cyclictest14-21ksoftirqd/008:55:130
11133997138,20cyclictest14-21ksoftirqd/007:25:140
11133997137,21cyclictest0-21swapper/010:40:120
1113599708,45cyclictest0-21swapper/109:05:141
11133997040,19cyclictest14-21ksoftirqd/012:25:110
11133997036,25cyclictest14-21ksoftirqd/008:20:130
11133997013,44cyclictest0-21swapper/010:30:130
11133996933,25cyclictest14-21ksoftirqd/012:35:140
11133996932,27cyclictest14-21ksoftirqd/009:05:120
11133996736,25cyclictest14-21ksoftirqd/010:35:110
1113599666,44cyclictest0-21swapper/107:30:141
1113599666,44cyclictest0-21swapper/107:30:141
11133996636,19cyclictest0-21swapper/010:00:150
11133996634,23cyclictest14-21ksoftirqd/008:00:120
11135996428,20cyclictest26-21ksoftirqd/111:20:161
11133996431,25cyclictest14-21ksoftirqd/011:50:140
292892620,11sleep1251rcuc/109:30:001
11133996226,30cyclictest14-21ksoftirqd/012:20:230
1113599596,35cyclictest0-21swapper/109:15:121
11135995936,17cyclictest1068-21sendmail-mta08:05:301
11135995832,10cyclictest26-21ksoftirqd/108:20:001
11133995823,27cyclictest11124-21cyclictest09:40:130
11135995639,10cyclictest26-21ksoftirqd/112:00:221
11135995639,10cyclictest26-21ksoftirqd/110:45:311
11135995639,10cyclictest26-21ksoftirqd/109:38:151
11135995637,11cyclictest26-21ksoftirqd/108:00:171
11135995625,14cyclictest26-21ksoftirqd/111:40:011
11133995613,30cyclictest0-21swapper/008:40:110
11135995537,11cyclictest26-21ksoftirqd/110:00:231
11135995532,8cyclictest26-21ksoftirqd/108:50:011
11135995526,17cyclictest26-21ksoftirqd/108:13:181
2205625410,37sleep10-21swapper/110:40:261
1113599545,44cyclictest0-21swapper/109:34:561
11135995437,10cyclictest26-21ksoftirqd/107:15:311
11135995436,10cyclictest26-21ksoftirqd/112:25:011
11135995436,10cyclictest26-21ksoftirqd/111:50:381
11135995421,20cyclictest0-21swapper/112:15:141
11135995416,28cyclictest26-21ksoftirqd/110:55:131
11135995416,28cyclictest26-21ksoftirqd/110:55:121
11135995410,12cyclictest0-21swapper/112:25:201
11135995338,9cyclictest26-21ksoftirqd/110:15:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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