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2026-05-03 - 10:25
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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 May 03, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
729026660,4sleep0191irq_work/019:05:190
297812980,6chrt29779-21grep20:05:360
816629416,32sleep10-21swapper/119:06:461
8663998874,10cyclictest26-21ksoftirqd/100:10:121
8663998627,52cyclictest457-21dbus-daemon22:00:001
866399858,62cyclictest29782-21apt-get23:10:141
8663998520,52cyclictest0-21swapper/123:45:121
8663998515,58cyclictest0-21swapper/122:00:131
8663998511,59cyclictest0-21swapper/123:55:131
8663998422,54cyclictest8651-21cyclictest19:55:131
8663998418,54cyclictest0-21swapper/120:25:091
8663998415,59cyclictest0-21swapper/122:25:121
8663998414,57cyclictest0-21swapper/120:30:131
866399837,59cyclictest1107-21apt-get21:50:121
8663998368,9cyclictest26-21ksoftirqd/120:20:111
8663998340,32cyclictest26-21ksoftirqd/122:35:141
8663998315,55cyclictest0-21swapper/122:05:231
8663998314,59cyclictest0-21swapper/123:20:121
8663998314,58cyclictest0-21swapper/100:15:131
8663998217,52cyclictest0-21swapper/123:05:231
8663998217,50cyclictest0-21swapper/119:40:241
8663998216,57cyclictest0-21swapper/119:50:131
8663998213,56cyclictest0-21swapper/122:50:111
8663998212,56cyclictest0-21swapper/120:35:121
8663998212,54cyclictest0-21swapper/123:50:151
866399818,59cyclictest27941-21apt-get21:35:141
866399817,60cyclictest13922-21apt-get20:55:111
8663998115,52cyclictest0-21swapper/121:00:151
8663998111,61cyclictest0-21swapper/119:35:131
8663998017,54cyclictest0-21swapper/100:00:141
8663998015,56cyclictest0-21swapper/123:25:121
8663998015,56cyclictest0-21swapper/121:05:151
8663998015,51cyclictest0-21swapper/123:15:141
8663998014,57cyclictest0-21swapper/121:45:131
8663998013,57cyclictest0-21swapper/122:30:151
8663998012,58cyclictest0-21swapper/100:05:241
8663998012,57cyclictest0-21swapper/100:35:141
8663998012,55cyclictest0-21swapper/100:20:141
866399797,59cyclictest30601-21apt-get20:10:121
866399797,59cyclictest26200-21apt-get21:30:111
866399796,59cyclictest12757-21apt-get19:20:121
8663997920,52cyclictest243-21systemd-journal20:46:281
8663997916,53cyclictest0-21swapper/123:30:231
8663997916,53cyclictest0-21swapper/123:30:231
8663997914,53cyclictest0-21swapper/119:10:141
8663997913,54cyclictest0-21swapper/120:50:141
8663997913,53cyclictest0-21swapper/100:30:141
8663997912,59cyclictest0-21swapper/100:25:131
866399787,59cyclictest21830-21apt-get19:45:141
866399786,58cyclictest20952-21apt-get21:15:131
8663997815,52cyclictest0-21swapper/122:20:141
8663997813,54cyclictest0-21swapper/120:15:121
8663997812,54cyclictest0-21swapper/122:45:131
866399777,56cyclictest8434-21apt-get22:10:141
866399777,56cyclictest14494-21apt-get19:25:111
866399777,55cyclictest8190-21apt-get23:40:121
8663997721,51cyclictest243-21systemd-journal21:25:001
8663997715,48cyclictest0-21swapper/119:15:121
8663997713,52cyclictest0-21swapper/123:35:131
8663997620,49cyclictest25383-21sshd22:56:061
8663997520,45cyclictest457-21dbus-daemon21:30:001
8663997512,55cyclictest0-21swapper/122:40:121
8663997510,52cyclictest25947-21apt-get23:00:101
8663997413,50cyclictest0-21swapper/120:05:131
8663997310,53cyclictest0-21swapper/122:15:161
865999736,35cyclictest0-21swapper/019:35:290
8663997213,53cyclictest17245-21cat19:30:361
865999727,33cyclictest0-21swapper/022:45:190
8663997116,48cyclictest30109-21aten2.4_r3power21:40:261
865999717,52cyclictest0-21swapper/021:40:230
866399707,49cyclictest19213-21apt-get21:10:111
866399696,50cyclictest8708-21apt-get20:40:131
8663996919,44cyclictest28651-21basename20:05:001
865999685,33cyclictest0-21swapper/022:10:210
865999676,47cyclictest0-21swapper/000:35:120
865999675,33cyclictest0-21swapper/022:15:210
865999667,38cyclictest151rcu_preempt23:30:430
865999667,38cyclictest151rcu_preempt23:30:430
8659996436,18cyclictest11679-21apt-get23:50:130
8659996430,27cyclictest0-21swapper/022:50:120
865999636,16cyclictest19048-21apt-get00:10:120
865999635,31cyclictest0-21swapper/020:00:210
8659996334,19cyclictest6641-21apt-get22:05:250
865999627,14cyclictest151rcu_preempt00:20:370
8659996238,13cyclictest4604-21apt-get22:00:130
8659996212,43cyclictest0-21swapper/019:20:120
8659996128,27cyclictest0-21swapper/021:50:140
8659996123,32cyclictest0-21swapper/022:30:150
8659996114,41cyclictest15217-21apt-get00:00:120
8659996030,24cyclictest0-21swapper/020:20:120
8659996018,36cyclictest8000-21cron23:40:000
865999598,37cyclictest0-21swapper/021:25:110
8659995935,10cyclictest20786-21apt-get00:15:130
8659995930,24cyclictest0-21swapper/019:45:130
865999589,44cyclictest0-21swapper/020:45:320
865999587,38cyclictest151rcu_preempt20:35:330
865999585,13cyclictest151rcu_preempt21:30:300
8659995835,10cyclictest2596-21apt-get23:25:120
8659995834,10cyclictest856-21apt-get23:20:120
8659995831,17cyclictest9935-21apt-get23:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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