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2025-11-24 - 20:26
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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 Nov 24, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3515122256180,60sleep00-21swapper/007:07:510
3515932245187,44sleep10-21swapper/107:08:431
4579632640,1sleep00-21swapper/010:22:290
125899640,4rtkit-daemon1257-21rtkit-daemon10:43:561
125899590,4rtkit-daemon1257-21rtkit-daemon10:20:481
4238072580,2sleep10-21swapper/109:38:191
125899580,4rtkit-daemon1257-21rtkit-daemon12:23:000
125899510,4rtkit-daemon1257-21rtkit-daemon10:10:251
125899510,4rtkit-daemon1257-21rtkit-daemon10:02:400
125899510,3rtkit-daemon1257-21rtkit-daemon11:47:120
125899510,3rtkit-daemon0-21swapper/111:06:461
125899500,4rtkit-daemon1257-21rtkit-daemon08:15:091
125899500,4rtkit-daemon1257-21rtkit-daemon08:15:091
4631302490,4sleep0161rcuc/010:30:010
125899490,4rtkit-daemon1257-21rtkit-daemon09:06:221
125899480,4rtkit-daemon1257-21rtkit-daemon07:46:361
125899480,3rtkit-daemon0-21swapper/108:29:101
125899470,3rtkit-daemon1257-21rtkit-daemon09:03:561
125899450,3rtkit-daemon0-21swapper/107:58:461
125899450,3rtkit-daemon0-21swapper/107:24:371
125899440,3rtkit-daemon0-21swapper/011:12:091
351826994313,18cyclictest26-21ksoftirqd/111:20:001
125899430,3rtkit-daemon0-21swapper/012:08:541
125899420,3rtkit-daemon0-21swapper/107:15:181
125899420,3rtkit-daemon0-21swapper/011:43:251
351826994111,19cyclictest26-21ksoftirqd/108:05:321
125899410,3rtkit-daemon0-21swapper/011:45:251
351826994019,11cyclictest26-21ksoftirqd/107:10:231
125899400,4rtkit-daemon1257-21rtkit-daemon10:46:561
125899400,3rtkit-daemon0-21swapper/108:42:461
125899400,3rtkit-daemon0-21swapper/107:31:521
125899400,3rtkit-daemon0-21swapper/107:25:401
125899400,3rtkit-daemon0-21swapper/012:35:220
125899400,3rtkit-daemon0-21swapper/012:12:451
3935402390,21sleep013-21ksoftirqd/008:50:010
125899390,3rtkit-daemon1257-21rtkit-daemon09:19:101
125899390,3rtkit-daemon0-21swapper/108:50:081
125899390,3rtkit-daemon0-21swapper/012:04:281
125899390,3rtkit-daemon0-21swapper/009:50:531
125899390,3rtkit-daemon0-21swapper/009:47:300
125899380,9rtkit-daemon379050-21/usr/sbin/munin08:15:160
125899380,9rtkit-daemon379050-21/usr/sbin/munin08:15:150
125899380,4rtkit-daemon1257-21rtkit-daemon12:16:000
125899380,4rtkit-daemon1257-21rtkit-daemon11:38:400
125899380,3rtkit-daemon0-21swapper/109:34:160
125899380,3rtkit-daemon0-21swapper/011:11:050
35182699378,19cyclictest26-21ksoftirqd/111:25:021
125899370,4rtkit-daemon1257-21rtkit-daemon12:03:130
125899370,4rtkit-daemon0-21swapper/011:27:550
125899370,3rtkit-daemon0-21swapper/011:50:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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