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2026-08-12 - 07:26
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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 Aug 12, 2026 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6702999748,40cyclictest25450-21apt-get21:30:150
627828923,16sleep10-21swapper/119:07:291
6702998640,12cyclictest1536-21apt-get23:25:120
6702998640,12cyclictest1536-21apt-get23:25:120
6702998554,17cyclictest32141-21apt-get20:20:140
63532848,28sleep00-21swapper/019:08:170
6702998151,19cyclictest26862-21apt-get20:05:210
6702998151,19cyclictest26862-21apt-get20:05:210
6702998044,30cyclictest0-21swapper/021:50:120
670499793,69cyclictest5361-21latency_hist20:35:011
6702997943,28cyclictest0-21swapper/000:20:140
6702997851,17cyclictest14150-21apt-get00:00:140
6702997843,29cyclictest0-21swapper/021:20:160
6704997729,42cyclictest1439-21grep20:25:021
6702997749,18cyclictest10886-21apt-get22:20:130
6702997744,28cyclictest0-21swapper/022:40:110
670499769,52cyclictest0-21swapper/123:25:141
670499769,52cyclictest0-21swapper/123:25:141
670499769,51cyclictest0-21swapper/122:55:131
670499769,51cyclictest0-21swapper/119:10:131
670499766,60cyclictest7384-21apt-get22:10:121
6704997611,51cyclictest0-21swapper/119:45:131
6702997643,26cyclictest0-21swapper/020:50:120
6702997642,27cyclictest0-21swapper/022:35:140
6702997641,29cyclictest0-21swapper/000:05:150
6702997640,21cyclictest0-21swapper/021:35:120
670499757,52cyclictest17914-21apt-get22:40:111
6704997526,44cyclictest457-21dbus-daemon22:10:001
6702997551,12cyclictest7136-21apt-get23:40:140
6702997550,17cyclictest12840-21apt-get19:25:240
6702997549,16cyclictest6779-21apt-get19:10:140
6702997547,19cyclictest21389-21apt-get22:50:140
6702997546,20cyclictest28641-21apt-get20:10:150
6702997542,28cyclictest0-21swapper/019:45:110
6702997542,27cyclictest0-21swapper/021:10:140
6702997541,27cyclictest0-21swapper/019:40:130
6702997539,22cyclictest0-21swapper/022:10:120
670499747,53cyclictest9038-21apt-get19:15:141
670499746,58cyclictest10612-21apt-get23:50:141
670499746,53cyclictest16105-21apt-get22:35:141
6704997410,53cyclictest0-21swapper/122:00:141
6702997449,11cyclictest3853-21apt-get22:00:140
6702997447,13cyclictest14582-21apt-get19:30:130
6702997442,27cyclictest0-21swapper/000:35:250
6702997442,27cyclictest0-21swapper/000:35:250
6702997440,28cyclictest0-21swapper/023:30:120
240842740,10sleep126-21ksoftirqd/119:55:301
670499739,54cyclictest0-21swapper/123:30:131
670499739,52cyclictest0-21swapper/123:00:111
670499739,52cyclictest0-21swapper/122:20:131
670499738,54cyclictest0-21swapper/100:15:141
670499736,54cyclictest9127-21apt-get22:15:131
670499736,53cyclictest10800-21apt-get19:20:161
670499736,50cyclictest10830-21apt-get20:50:131
670499735,57cyclictest17673-21apt-get00:10:151
6704997310,50cyclictest0-21swapper/123:45:151
6702997352,10cyclictest29000-21apt-get21:40:120
6702997351,10cyclictest31038-21apt-get21:45:230
6702997348,13cyclictest21606-21apt-get19:50:110
6702997342,24cyclictest0-21swapper/023:50:120
6702997341,26cyclictest0-21swapper/023:15:140
670499729,50cyclictest0-21swapper/123:35:131
670499729,50cyclictest0-21swapper/100:00:141
670499729,48cyclictest0-21swapper/121:30:151
670499727,53cyclictest28722-21apt-get23:10:241
670499727,52cyclictest16372-21apt-get21:05:141
670499726,55cyclictest27189-21apt-get21:35:121
670499726,52cyclictest24650-21apt-get00:30:131
670499726,51cyclictest12571-21apt-get20:55:141
670499726,51cyclictest12571-21apt-get20:55:141
6704997222,45cyclictest1921-21cron21:55:001
6702997252,10cyclictest23126-21apt-get22:55:130
6702997250,10cyclictest32222-21apt-get23:20:120
6702997249,13cyclictest20201-21apt-get21:15:230
6702997248,15cyclictest25121-21apt-get20:00:170
6702997247,14cyclictest19653-21apt-get22:45:130
6702997246,12cyclictest14330-21apt-get21:00:130
6702997243,21cyclictest0-21swapper/022:15:140
6702997226,40cyclictest14136-21munin-run21:00:010
6702997226,40cyclictest14136-21munin-run21:00:010
670499719,52cyclictest0-21swapper/120:15:131
670499719,49cyclictest0-21swapper/121:45:231
670499719,49cyclictest0-21swapper/120:05:211
670499719,49cyclictest0-21swapper/120:05:211
670499718,52cyclictest0-21swapper/122:30:151
670499718,52cyclictest0-21swapper/122:30:151
670499718,51cyclictest0-21swapper/100:05:161
670499716,52cyclictest14330-21apt-get21:00:151
670499716,52cyclictest12355-21apt-get23:55:151
670499716,52cyclictest12355-21apt-get23:55:151
670499716,51cyclictest5540-21apt-get20:35:161
670499713,62cyclictest32023-21cron23:20:001
6704997121,43cyclictest457-21dbus-daemon00:39:001
6704997121,43cyclictest457-21dbus-daemon00:39:001
6704997110,47cyclictest0-21swapper/121:15:231
6702997152,10cyclictest12355-21apt-get23:55:150
6702997152,10cyclictest12355-21apt-get23:55:150
6702997150,10cyclictest30380-21apt-get20:15:140
6702997148,11cyclictest24887-21apt-get23:00:110
6702997146,16cyclictest8877-21apt-get23:45:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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