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2026-05-19 - 01:18
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Mon May 18, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12117232263179,20sleep00-21swapper/007:07:490
12118812259219,27sleep10-21swapper/107:09:331
179699770,3rtkit-daemon1795-21rtkit-daemon11:09:151
13378422760,4sleep10-21swapper/110:52:491
179699690,4rtkit-daemon1795-21rtkit-daemon11:25:350
179699660,4rtkit-daemon1795-21rtkit-daemon08:30:330
121207799641,33cyclictest1357654-21latency_hist11:20:011
179699600,5rtkit-daemon1795-21rtkit-daemon10:56:571
121207799582,36cyclictest1294903-21apt-get09:55:101
179699570,4rtkit-daemon1795-21rtkit-daemon11:37:351
121207799572,36cyclictest1279808-21apt-get09:35:131
121207799572,35cyclictest1287229-21apt-get09:45:141
121207799561,36cyclictest1268451-21apt-get09:20:101
121207799552,34cyclictest1376599-21apt-get11:45:121
121207799551,35cyclictest1291392-21apt-get09:50:121
121207799551,34cyclictest1391470-21apt-get12:05:071
121207799542,26cyclictest1306155-21apt-get10:10:121
121207799541,34cyclictest1372970-21apt-get11:40:121
121207799541,33cyclictest1256673-21apt-get09:00:121
121207799533,31cyclictest1361736-21apt-get11:25:111
121207799533,26cyclictest1403536-21apt-get12:20:181
121207799532,33cyclictest1414486-21apt-get12:35:141
121207799532,32cyclictest1328172-21apt-get10:40:121
1212077995311,22cyclictest1306035-21date10:10:011
121207799530,38cyclictest1320820-21apt-get10:30:131
179699520,3rtkit-daemon1795-21rtkit-daemon08:55:181
121207799522,32cyclictest1258619-21apt-get09:05:131
179699510,3rtkit-daemon0-21swapper/110:01:410
121207799513,30cyclictest1240621-21apt-get08:20:131
121207799512,32cyclictest1331682-21apt-get10:45:141
121207799512,31cyclictest1246473-21apt-get08:35:141
121207799512,30cyclictest1218641-21apt-get07:25:121
121207799512,29cyclictest1212195-21apt-get07:10:141
121207799511,32cyclictest1399463-21apt-get12:15:121
121207799511,32cyclictest1264574-21apt-get09:15:131
1212077995113,26cyclictest1279289-21sh09:34:301
121207799510,29cyclictest1342718-21apt-get11:00:141
121207799510,20cyclictest1222471-21cut07:35:001
121207799509,22cyclictest1310912-21sed10:15:251
121207799507,32cyclictest1358467-21cat11:20:181
121207799502,31cyclictest1283417-21apt-get09:40:131
121207799502,30cyclictest1214720-21apt-get07:15:131
121207799501,31cyclictest1298757-21apt-get10:00:131
121207799500,21cyclictest1224911-21cnf-update-db07:40:021
121207799492,30cyclictest1365329-21apt-get11:30:121
121207799491,33cyclictest1224139-21package-data-do07:37:561
1212077994911,21cyclictest1353523-21sh11:14:541
121207799482,34cyclictest1410903-21/usr/sbin/munin12:30:251
121207799482,30cyclictest1230828-21apt-get07:55:121
121207799481,30cyclictest1248444-21apt-get08:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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