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2025-07-15 - 15:50
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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 Tue Jul 15, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5128302260186,59sleep10-21swapper/107:05:071
5139302254185,54sleep00-21swapper/007:05:330
514695991977,176cyclictest698214-21df12:05:150
5146979911461,41cyclictest694378-21cstates12:00:151
5146979911140,41cyclictest698187-21cstates12:05:141
125899690,4rtkit-daemon1257-21rtkit-daemon11:48:051
125899650,4rtkit-daemon1257-21rtkit-daemon12:10:291
125899600,4rtkit-daemon1257-21rtkit-daemon11:30:191
7128692560,2sleep10-21swapper/112:25:051
125899550,4rtkit-daemon1257-21rtkit-daemon10:57:181
125899550,4rtkit-daemon1257-21rtkit-daemon07:41:081
51469599542,13cyclictest575211-21apt-get09:25:150
125899520,3rtkit-daemon0-21swapper/007:14:580
125899510,3rtkit-daemon1257-21rtkit-daemon09:15:471
125899510,3rtkit-daemon0-21swapper/011:20:100
125899490,4rtkit-daemon1257-21rtkit-daemon10:44:181
125899430,3rtkit-daemon0-21swapper/010:14:521
125899420,8rtkit-daemon527698-21apt-get07:40:120
125899390,3rtkit-daemon0-21swapper/107:32:101
125899380,3rtkit-daemon0-21swapper/112:32:191
125899370,6rtkit-daemon1257-21rtkit-daemon10:18:020
125899370,3rtkit-daemon0-21swapper/107:39:231
125899360,4rtkit-daemon1257-21rtkit-daemon11:48:530
125899360,4rtkit-daemon1257-21rtkit-daemon10:37:431
125899360,3rtkit-daemon0-21swapper/110:49:551
125899360,3rtkit-daemon0-21swapper/109:11:550
125899360,3rtkit-daemon0-21swapper/011:59:530
514697993515,14cyclictest591001-21apt-get09:45:151
125899350,5rtkit-daemon689555-21ssh11:53:491
125899350,4rtkit-daemon1257-21rtkit-daemon09:50:050
125899350,3rtkit-daemon1257-21rtkit-daemon08:43:141
125899350,3rtkit-daemon0-21swapper/109:36:151
125899350,3rtkit-daemon0-21swapper/107:45:410
125899350,3rtkit-daemon0-21swapper/010:00:540
51469599341,13cyclictest641069-21apt-get10:50:140
125899340,5rtkit-daemon663941-21ssh11:20:151
125899340,4rtkit-daemon1257-21rtkit-daemon12:01:200
125899340,4rtkit-daemon1257-21rtkit-daemon07:48:331
125899340,4rtkit-daemon1257-21rtkit-daemon07:29:561
125899340,4rtkit-daemon1257-21rtkit-daemon07:19:150
125899340,3rtkit-daemon0-21swapper/111:27:370
51469599333,9cyclictest583332-21apt-get09:35:160
51469599332,10cyclictest571380-21apt-get09:20:120
125899330,4rtkit-daemon1257-21rtkit-daemon08:55:471
125899330,3rtkit-daemon0-21swapper/109:18:280
125899330,3rtkit-daemon0-21swapper/010:19:501
125899330,3rtkit-daemon0-21swapper/007:22:031
125899330,3rtkit-daemon0-21swapper/007:15:171
51469799321,25cyclictest555429-40apt-check08:50:111
125899320,4rtkit-daemon1257-21rtkit-daemon11:54:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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