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2026-06-08 - 03:52
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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 Jun 08, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14395352239198,27sleep00-21swapper/019:07:340
14394242237195,28sleep10-21swapper/119:06:231
179699840,4rtkit-daemon1795-21rtkit-daemon20:50:240
179699740,13rtkit-daemon1795-21rtkit-daemon22:22:021
143988799592,38cyclictest1632169-21apt-get00:25:140
179699550,4rtkit-daemon1795-21rtkit-daemon22:31:180
143988799530,38cyclictest1487747-21diskmemload22:17:470
179699520,4rtkit-daemon1795-21rtkit-daemon22:22:390
179699520,3rtkit-daemon1795-21rtkit-daemon22:55:350
143988799522,33cyclictest1559156-21apt-get22:45:130
143988799520,34cyclictest1496221-21apt-get21:20:130
143988799520,27cyclictest1487747-21diskmemload22:28:070
16289932510,3sleep00-21swapper/000:20:200
143988799512,32cyclictest1611092-21apt-get23:55:130
143988799512,31cyclictest1635775-21apt-get00:30:140
143988799511,34cyclictest1487747-21diskmemload21:51:140
143988799511,33cyclictest1581882-21apt-get23:15:120
179699500,3rtkit-daemon1795-21rtkit-daemon22:08:330
179699500,3rtkit-daemon1795-21rtkit-daemon21:05:250
179699500,3rtkit-daemon1795-21rtkit-daemon00:08:340
143988799508,22cyclictest1524908-21sh21:59:200
143988799501,34cyclictest1487747-21diskmemload00:13:140
143988799500,38cyclictest1642367-21ssh00:38:550
179699490,3rtkit-daemon1795-21rtkit-daemon22:03:540
179699490,3rtkit-daemon1795-21rtkit-daemon20:02:220
143988799491,30cyclictest1624814-21apt-get00:15:130
143988799490,33cyclictest1487747-21diskmemload21:47:180
143989499488,21cyclictest1458618-21apt-get19:55:111
143989499486,14cyclictest1636830-21mailstats00:30:241
143988799488,23cyclictest1504892-21sh21:30:320
143988799481,32cyclictest1487747-21diskmemload22:41:250
143988799481,23cyclictest1476232-21apt-get20:40:130
179699470,3rtkit-daemon0-21swapper/000:20:511
14920652470,5sleep11491709-21python321:15:021
143988799479,23cyclictest1444090-21seq19:17:500
143988799479,22cyclictest1534716-21sh22:11:400
143988799471,20cyclictest1507263-21apt-get21:35:140
143988799470,23cyclictest1478178-21apt-get20:45:130
143988799470,22cyclictest1607338-21apt-get23:50:130
143988799470,22cyclictest1492358-21apt-get21:15:130
179699460,4rtkit-daemon1795-21rtkit-daemon19:36:100
179699460,3rtkit-daemon1795-21rtkit-daemon19:52:030
179699460,3rtkit-daemon0-21swapper/121:24:451
143989499468,22cyclictest1547628-21apt-get22:30:071
143989499466,28cyclictest1597235-21cat23:35:181
143988799464,21cyclictest763-21dbus-daemon19:30:000
143988799461,20cyclictest1468411-21apt-get20:20:140
143988799460,24cyclictest1448429-21apt-get19:30:120
143988799460,21cyclictest1585680-21apt-get23:20:150
143988799460,21cyclictest1562875-21apt-get22:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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