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2026-05-13 - 20:29
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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 rackdslot3.osadl.org (updated Wed May 13, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491238171,23phc2sys0-21swapper/307:07:173
246212235170,22sleep10-21swapper/107:06:391
247922204170,23sleep00-21swapper/007:08:520
245712203171,21sleep20-21swapper/207:06:002
203892660,3sleep10-21swapper/109:15:111
207112640,3sleep30-21swapper/308:05:253
25184996228,7cyclictest41-21ksoftirqd/311:55:263
168342620,2sleep00-21swapper/010:15:120
25184996128,7cyclictest41-21ksoftirqd/311:05:243
25184996029,10cyclictest41-21ksoftirqd/310:10:003
25184996026,7cyclictest41-21ksoftirqd/309:55:003
25184995928,7cyclictest41-21ksoftirqd/309:40:003
25184995926,4cyclictest41-21ksoftirqd/311:22:493
25184995925,8cyclictest41-21ksoftirqd/308:20:013
2518399590,33cyclictest12856-21cat09:00:002
25184995830,4cyclictest41-21ksoftirqd/311:25:253
25184995829,7cyclictest41-21ksoftirqd/312:05:263
25184995827,7cyclictest41-21ksoftirqd/312:25:113
25184995827,4cyclictest41-21ksoftirqd/310:55:183
25184995820,9cyclictest41-21ksoftirqd/312:35:133
25184995730,6cyclictest41-21ksoftirqd/311:45:143
25184995728,4cyclictest41-21ksoftirqd/310:25:133
25184995727,8cyclictest41-21ksoftirqd/310:10:263
25184995727,3cyclictest41-21ksoftirqd/310:45:193
25184995724,4cyclictest41-21ksoftirqd/309:45:253
25184995721,8cyclictest41-21ksoftirqd/309:15:003
25184995628,7cyclictest41-21ksoftirqd/312:00:173
25184995627,4cyclictest41-21ksoftirqd/311:15:183
25184995626,4cyclictest41-21ksoftirqd/307:25:243
25184995625,7cyclictest41-21ksoftirqd/308:10:253
25184995624,4cyclictest41-21ksoftirqd/312:20:003
25184995623,8cyclictest41-21ksoftirqd/310:35:013
25184995621,9cyclictest41-21ksoftirqd/309:30:163
25184995533,3cyclictest41-21ksoftirqd/312:35:003
25184995525,7cyclictest41-21ksoftirqd/312:10:163
25184995525,7cyclictest41-21ksoftirqd/309:05:113
25184995524,9cyclictest41-21ksoftirqd/308:50:193
25184995524,7cyclictest41-21ksoftirqd/307:40:133
25184995523,9cyclictest41-21ksoftirqd/307:20:143
25184995522,7cyclictest41-21ksoftirqd/308:00:193
25184995521,5cyclictest41-21ksoftirqd/308:45:233
25184995521,11cyclictest41-21ksoftirqd/308:40:003
25184995424,7cyclictest41-21ksoftirqd/311:35:153
25184995424,3cyclictest41-21ksoftirqd/309:30:003
25184995422,4cyclictest41-21ksoftirqd/310:00:253
72112530,2sleep20-21swapper/207:40:132
25184995323,4cyclictest41-21ksoftirqd/309:20:253
25184995322,3cyclictest41-21ksoftirqd/311:00:183
25184995320,8cyclictest41-21ksoftirqd/308:40:173
25184995320,5cyclictest41-21ksoftirqd/310:40:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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