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2026-05-18 - 23:28
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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 May 18, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274399911311,31cyclictest0-21swapper/109:30:171
274349911316,84cyclictest0-21swapper/012:10:110
274349911069,30cyclictest14-21ksoftirqd/007:15:130
274349910914,81cyclictest0-21swapper/008:40:120
274349910911,30cyclictest0-21swapper/011:30:130
274349910710,81cyclictest0-21swapper/009:20:120
274399910613,30cyclictest0-21swapper/109:55:111
274349910514,77cyclictest0-21swapper/008:30:260
274349910461,32cyclictest0-21swapper/009:45:130
274349910334,49cyclictest0-21swapper/012:00:130
274349910216,65cyclictest0-21swapper/010:40:120
274349910154,34cyclictest14-21ksoftirqd/008:20:140
274349910110,29cyclictest0-21swapper/008:00:110
27270210116,40sleep00-21swapper/007:09:430
274349910056,33cyclictest14-21ksoftirqd/007:20:120
274349910053,33cyclictest14-21ksoftirqd/007:10:140
274349910029,54cyclictest0-21swapper/009:00:120
27439999912,33cyclictest0-21swapper/112:15:111
27434999947,36cyclictest14-21ksoftirqd/009:35:140
27434999931,49cyclictest0-21swapper/011:15:130
27434999928,53cyclictest0-21swapper/007:55:110
27434999923,26cyclictest27425-21cyclictest12:05:160
27434999852,31cyclictest14-21ksoftirqd/008:55:140
27434999828,49cyclictest0-21swapper/012:35:130
27434999733,46cyclictest0-21swapper/012:25:130
27434999714,64cyclictest0-21swapper/007:40:120
27434999713,63cyclictest0-21swapper/012:20:140
2743499967,70cyclictest503-21snmpd09:10:120
27434999628,47cyclictest0-21swapper/011:35:150
27434999612,61cyclictest0-21swapper/010:45:150
27434999611,65cyclictest0-21swapper/009:15:130
27434999547,30cyclictest14-21ksoftirqd/007:35:140
27434999545,32cyclictest14-21ksoftirqd/010:00:140
27434999528,52cyclictest14-21ksoftirqd/007:30:150
27434999514,60cyclictest0-21swapper/011:05:150
2699429515,31sleep10-21swapper/107:07:161
27434999412,62cyclictest0-21swapper/011:45:110
27434999412,58cyclictest0-21swapper/008:50:100
27434999411,65cyclictest0-21swapper/007:25:130
2743499939,62cyclictest0-21swapper/012:30:140
2743499937,61cyclictest19768-21chrt09:50:120
27434999327,50cyclictest0-21swapper/011:50:120
27434999327,50cyclictest0-21swapper/011:50:120
27434999312,26cyclictest0-21swapper/010:35:250
27434999311,63cyclictest0-21swapper/009:25:110
2743499929,60cyclictest0-21swapper/011:55:130
27434999212,58cyclictest0-21swapper/011:20:140
27434999119,52cyclictest0-21swapper/008:10:130
27434999015,53cyclictest0-21swapper/009:40:120
27434999010,59cyclictest0-21swapper/009:30:130
27434998916,52cyclictest0-21swapper/011:25:100
27434998916,51cyclictest0-21swapper/011:00:120
27434998915,51cyclictest0-21swapper/011:10:130
27434998914,53cyclictest0-21swapper/010:30:130
27434998815,52cyclictest0-21swapper/008:25:120
27434998811,56cyclictest0-21swapper/008:05:120
27434998731,39cyclictest0-21swapper/009:05:130
27434998716,50cyclictest0-21swapper/010:05:130
27434998716,48cyclictest0-21swapper/010:55:170
27434998715,48cyclictest0-21swapper/010:50:110
27434998615,48cyclictest0-21swapper/007:50:120
27434998611,53cyclictest0-21swapper/011:40:110
27434998610,53cyclictest0-21swapper/010:15:150
27434998533,30cyclictest0-21swapper/012:15:140
27434998516,48cyclictest0-21swapper/008:15:110
27434998514,51cyclictest0-21swapper/008:35:130
27434998416,49cyclictest0-21swapper/008:45:120
27434998416,47cyclictest0-21swapper/009:55:120
27434998315,47cyclictest0-21swapper/010:20:120
27434998114,47cyclictest0-21swapper/010:25:150
2743499809,53cyclictest0-21swapper/007:45:120
2743499809,53cyclictest0-21swapper/007:45:120
27434998015,45cyclictest0-21swapper/010:10:140
27439996636,18cyclictest26-21ksoftirqd/107:49:551
27439996636,18cyclictest26-21ksoftirqd/107:49:551
2743999638,33cyclictest24066-21apt-get08:30:151
27439996345,10cyclictest26-21ksoftirqd/111:00:001
2743999633,9cyclictest26-21ksoftirqd/111:33:341
2743999625,26cyclictest16786-21apt-get08:10:141
2743999615,11cyclictest0-21swapper/107:12:471
27439996043,10cyclictest26-21ksoftirqd/111:20:211
27439996013,42cyclictest0-21swapper/108:20:181
2743999599,44cyclictest0-21swapper/110:45:311
2743999596,13cyclictest0-21swapper/109:35:401
2743999595,11cyclictest0-21swapper/112:31:301
27439995941,11cyclictest26-21ksoftirqd/110:10:001
27439995940,12cyclictest26-21ksoftirqd/109:09:011
27439995939,13cyclictest26-21ksoftirqd/110:20:011
27439995939,12cyclictest26-21ksoftirqd/109:24:001
27439995938,17cyclictest26-21ksoftirqd/111:48:011
2743999593,49cyclictest12177-21/usr/sbin/munin11:00:161
27439995929,18cyclictest26-21ksoftirqd/112:27:171
2743999589,20cyclictest29713-21apt-get11:50:121
2743999589,20cyclictest29713-21apt-get11:50:121
2743999585,11cyclictest0-21swapper/108:48:161
2743999585,10cyclictest0-21swapper/111:44:271
27439995841,10cyclictest26-21ksoftirqd/109:50:001
27439995840,11cyclictest26-21ksoftirqd/112:10:001
27439995840,11cyclictest26-21ksoftirqd/108:10:001
27439995839,11cyclictest26-21ksoftirqd/107:30:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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