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2026-07-03 - 03:48
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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 Fri Jul 03, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
703329637,42sleep00-21swapper/019:05:200
842699936,48cyclictest21602-21apt-get19:45:240
709128738,35sleep10-21swapper/119:05:211
8431998636,44cyclictest270-21systemd-udevd21:14:201
843199859,60cyclictest0-21swapper/121:40:131
842699852,76cyclictest30689-21cat20:10:170
842699846,65cyclictest0-21swapper/000:15:130
843199839,62cyclictest0-21swapper/120:05:131
843199839,59cyclictest0-21swapper/123:35:131
842699838,61cyclictest0-21swapper/021:35:240
843199829,57cyclictest0-21swapper/123:45:161
8431998211,57cyclictest0-21swapper/119:55:121
8431998211,57cyclictest0-21swapper/119:55:121
8431998210,57cyclictest0-21swapper/119:20:141
843199816,61cyclictest21166-21apt-get00:15:131
8431998110,60cyclictest0-21swapper/120:30:131
8431998110,59cyclictest0-21swapper/121:05:241
842699817,66cyclictest0-21swapper/020:00:140
843199809,57cyclictest0-21swapper/122:35:101
843199808,55cyclictest0-21swapper/100:20:151
843199808,54cyclictest1446-21apt-get20:20:141
843199807,60cyclictest28980-21apt-get23:05:121
843199807,60cyclictest17642-21apt-get00:05:151
843199807,57cyclictest26408-21apt-get00:30:121
843199806,62cyclictest3586-21apt-get23:25:151
8431998010,58cyclictest0-21swapper/121:15:141
8431998010,55cyclictest0-21swapper/119:45:221
8431998010,54cyclictest0-21swapper/122:10:111
842699807,64cyclictest0-21swapper/022:05:110
842699807,62cyclictest0-21swapper/000:30:120
842699807,59cyclictest0-21swapper/023:25:150
842699807,58cyclictest0-21swapper/022:45:130
842699807,58cyclictest0-21swapper/022:45:130
843199799,60cyclictest0-21swapper/120:15:111
843199799,58cyclictest0-21swapper/122:55:121
843199799,56cyclictest0-21swapper/120:45:241
843199797,60cyclictest24840-21apt-get21:25:141
843199797,60cyclictest19427-21apt-get00:10:121
843199796,61cyclictest10773-21apt-get19:15:121
8431997936,36cyclictest26-21ksoftirqd/121:59:591
8431997911,53cyclictest0-21swapper/122:40:121
8431997910,57cyclictest0-21swapper/120:35:131
842699799,59cyclictest0-21swapper/023:15:140
842699798,64cyclictest0-21swapper/021:50:130
842699798,59cyclictest0-21swapper/023:05:120
842699798,59cyclictest0-21swapper/000:05:150
842699798,58cyclictest0-21swapper/020:55:120
842699797,59cyclictest0-21swapper/023:00:190
842699796,61cyclictest18148-21apt-get22:35:100
842699795,63cyclictest30436-21apt-get21:40:130
8426997930,43cyclictest5288-21apt-get22:00:250
843199789,59cyclictest0-21swapper/123:20:131
843199789,58cyclictest0-21swapper/119:35:141
843199789,58cyclictest0-21swapper/119:35:141
843199789,57cyclictest0-21swapper/123:40:131
843199789,57cyclictest0-21swapper/123:40:131
843199789,57cyclictest0-21swapper/120:10:131
843199789,56cyclictest0-21swapper/120:40:121
843199787,62cyclictest28624-21apt-get21:35:231
843199787,55cyclictest32509-21apt-get23:15:141
843199787,55cyclictest15901-21apt-get00:00:131
8431997810,59cyclictest0-21swapper/122:50:241
8431997810,57cyclictest0-21swapper/121:00:131
8431997810,53cyclictest0-21swapper/123:30:131
842699787,59cyclictest25082-21apt-get19:55:120
842699787,59cyclictest25082-21apt-get19:55:120
842699787,59cyclictest0-21swapper/021:25:140
842699787,59cyclictest0-21swapper/000:10:120
842699787,58cyclictest17809-21apt-get21:05:240
842699786,58cyclictest0-21swapper/019:25:130
842699782,70cyclictest21959-21sed21:15:280
8426997824,48cyclictest243-21systemd-journal23:41:430
8426997824,48cyclictest243-21systemd-journal23:41:430
843199779,58cyclictest0-21swapper/122:20:231
843199777,60cyclictest23102-21apt-get21:20:131
843199777,54cyclictest21701-21apt-get22:45:141
843199777,54cyclictest21701-21apt-get22:45:141
843199776,55cyclictest14271-21apt-get19:25:121
843199776,54cyclictest19564-21apt-get19:40:121
843199776,54cyclictest1484-21apt-get21:50:131
8431997710,57cyclictest0-21swapper/122:25:121
8431997710,56cyclictest0-21swapper/100:35:131
8431997710,55cyclictest0-21swapper/121:30:141
842699778,61cyclictest0-21swapper/020:20:140
842699777,63cyclictest0-21swapper/019:40:130
842699777,62cyclictest0-21swapper/023:30:120
842699777,61cyclictest0-21swapper/021:55:130
842699777,60cyclictest0-21swapper/023:10:100
842699777,58cyclictest0-21swapper/019:15:120
842699776,59cyclictest8485-21apt-get20:40:120
842699776,57cyclictest28581-21apt-get20:05:130
842699776,56cyclictest1847-21apt-get23:20:130
842699776,55cyclictest4930-21apt-get20:30:130
8426997723,48cyclictest243-21systemd-journal22:31:290
843199769,57cyclictest0-21swapper/120:50:131
843199769,55cyclictest0-21swapper/122:30:251
843199769,53cyclictest0-21swapper/122:05:121
843199769,53cyclictest0-21swapper/120:25:111
843199767,55cyclictest14005-21apt-get20:55:121
843199767,54cyclictest30767-21apt-get23:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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