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2026-03-22 - 02:09
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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 Sun Mar 22, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1202929813,37sleep00-21swapper/019:06:430
1201829232,49sleep10-21swapper/119:06:371
12527998448,24cyclictest701-21apt-get00:35:241
12522998335,42cyclictest2890-21irqstats23:10:230
1252299816,64cyclictest25998-21apt-get19:45:120
12527997946,18cyclictest4164-21apt-get23:15:131
246722780,7sleep023820-21diskmemload21:10:280
12527997840,28cyclictest6138-21apt-get20:20:131
1252299782,69cyclictest548-21runrttasks22:15:090
1252299778,59cyclictest846-21apt-get20:05:150
12522997710,55cyclictest0-21swapper/021:30:230
12527997646,18cyclictest31569-21apt-get21:30:231
12527997638,28cyclictest7668-21apt-get23:25:131
12527997633,27cyclictest0-21swapper/121:25:131
1252299767,57cyclictest16743-21apt-get23:50:140
1252299763,66cyclictest9417-21taskset23:30:160
12522997628,42cyclictest21021-21ntp_states00:00:300
12522997610,55cyclictest0-21swapper/023:15:120
12527997549,15cyclictest16951-21apt-get20:50:241
12527997541,23cyclictest27617-21apt-get00:20:241
12527997536,27cyclictest27823-21apt-get22:50:241
1252299759,52cyclictest0-21swapper/021:00:130
1252299758,52cyclictest0-21swapper/020:20:120
12522997525,44cyclictest448-21dbus-daemon22:40:000
12527997448,16cyclictest22196-21apt-get21:05:141
12527997448,12cyclictest15249-21apt-get22:15:131
12527997446,14cyclictest18480-21apt-get23:55:131
12527997445,15cyclictest627-21apt-get23:05:121
12527997436,24cyclictest0-21swapper/120:05:141
1252299749,51cyclictest0-21swapper/021:05:150
1252299749,51cyclictest0-21swapper/020:50:240
1252299748,52cyclictest0-21swapper/023:25:120
1252299745,62cyclictest0-21swapper/023:35:190
12522997427,42cyclictest488-21gdbus19:44:590
12522997427,41cyclictest20819-21cut19:30:160
1252299742,67cyclictest18964-21kernelversion23:55:230
12527997347,16cyclictest20455-21apt-get21:00:131
12527997347,15cyclictest5930-21apt-get23:20:131
12527997345,18cyclictest883-21apt-get21:35:111
12527997345,18cyclictest883-21apt-get21:35:101
12527997345,14cyclictest26025-21apt-get21:15:221
12527997344,14cyclictest15162-21apt-get19:15:251
12527997343,19cyclictest20706-21apt-get19:30:131
12527997342,18cyclictest29357-21apt-get00:25:121
12527997341,19cyclictest27735-21apt-get19:50:111
12527997340,19cyclictest13509-21apt-get22:10:121
12527997335,26cyclictest31094-21apt-get00:30:121
1252299739,49cyclictest0-21swapper/022:55:120
1252299733,64cyclictest27615-21apt00:20:110
12527997248,14cyclictest18693-21apt-get20:55:121
12527997244,14cyclictest9977-21apt-get22:00:141
12527997244,13cyclictest20287-21apt-get00:00:121
12527997240,16cyclictest11357-21apt-get20:35:131
12527997236,26cyclictest4376-21apt-get20:15:111
12527997236,25cyclictest13168-21apt-get20:40:111
12527997234,25cyclictest0-21swapper/123:50:131
1252299729,56cyclictest0-21swapper/019:20:250
1252299729,53cyclictest0-21swapper/022:10:120
1252299729,50cyclictest0-21swapper/021:35:110
1252299729,50cyclictest0-21swapper/021:35:110
1252299729,50cyclictest0-21swapper/021:20:140
1252299729,50cyclictest0-21swapper/021:20:130
1252299729,49cyclictest0-21swapper/023:20:130
1252299729,48cyclictest0-21swapper/023:40:220
1252299727,58cyclictest6476-21apt-get21:50:210
1252299727,51cyclictest29774-21apt-get19:55:220
1252299723,63cyclictest29706-21cpu21:25:170
1252299723,44cyclictest8561-21diskstats21:55:210
1252299722,64cyclictest24152-21df_inode00:10:210
12522997226,41cyclictest3487-21python320:10:320
12522997220,47cyclictest15868-21wc23:45:340
12522997219,48cyclictest448-21dbus-daemon00:40:000
12522997210,56cyclictest0-21swapper/023:00:100
12527997143,18cyclictest29561-21apt-get22:55:111
12527997143,14cyclictest27792-21apt-get21:20:141
12527997143,14cyclictest27792-21apt-get21:20:131
12527997143,14cyclictest12603-21apt-get19:10:131
12527997134,27cyclictest0-21swapper/119:55:231
12527997123,33cyclictest0-21swapper/121:50:221
1252299719,50cyclictest0-21swapper/020:00:160
1252299719,50cyclictest0-21swapper/000:25:120
1252299719,49cyclictest0-21swapper/020:25:120
1252299719,49cyclictest0-21swapper/020:25:120
1252299717,50cyclictest11716-21apt-get22:05:120
1252299714,61cyclictest27601-21cron21:20:000
1252299713,61cyclictest548-21runrttasks22:40:120
12522997113,52cyclictest0-21swapper/020:55:130
12522997111,52cyclictest0-21swapper/019:50:120
12522997110,53cyclictest0-21swapper/019:35:130
12527997043,16cyclictest13262-21apt-get23:40:231
12527997043,14cyclictest2423-21apt-get23:10:111
12527997043,13cyclictest20493-21apt-get22:30:121
12527997042,14cyclictest17012-21apt-get22:20:131
12527997040,15cyclictest22450-21apt-get19:35:121
12527997039,22cyclictest7877-21apt-get20:25:131
12527997039,22cyclictest7877-21apt-get20:25:121
12527997036,23cyclictest25998-21apt-get19:45:141
12527997036,21cyclictest31541-21apt-get20:00:161
12527997033,27cyclictest0-21swapper/122:05:131
1252299709,51cyclictest0-21swapper/023:05:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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