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2026-04-15 - 02:48
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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 Apr 14, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26120552270194,61sleep00-21swapper/007:05:500
26122882254212,28sleep10-21swapper/107:08:201
27169972640,1sleep00-21swapper/010:25:240
27454042610,4sleep10-21swapper/111:06:051
179699540,4rtkit-daemon1795-21rtkit-daemon09:46:331
179699490,4rtkit-daemon1795-21rtkit-daemon11:16:540
179699490,4rtkit-daemon1795-21rtkit-daemon09:42:341
179699490,4rtkit-daemon1795-21rtkit-daemon08:58:140
179699490,4rtkit-daemon1795-21rtkit-daemon07:56:311
179699490,3rtkit-daemon1795-21rtkit-daemon11:03:510
27679752470,3sleep10-21swapper/111:38:511
179699460,3rtkit-daemon1795-21rtkit-daemon07:17:470
179699440,3rtkit-daemon1795-21rtkit-daemon09:21:190
179699440,3rtkit-daemon1795-21rtkit-daemon09:21:190
179699420,3rtkit-daemon0-21swapper/012:09:560
179699380,4rtkit-daemon2689191-21runrttasks09:46:000
179699370,3rtkit-daemon0-21swapper/007:38:370
179699360,4rtkit-daemon1795-21rtkit-daemon11:30:341
179699360,4rtkit-daemon1795-21rtkit-daemon10:07:441
179699360,3rtkit-daemon0-21swapper/111:22:141
179699360,3rtkit-daemon0-21swapper/011:53:580
179699360,3rtkit-daemon0-21swapper/011:45:531
179699350,4rtkit-daemon1795-21rtkit-daemon10:43:441
179699350,4rtkit-daemon1795-21rtkit-daemon08:54:061
179699350,3rtkit-daemon0-21swapper/108:26:001
179699340,4rtkit-daemon1795-21rtkit-daemon10:55:001
179699340,4rtkit-daemon1795-21rtkit-daemon10:25:221
179699340,4rtkit-daemon1795-21rtkit-daemon09:31:331
179699340,4rtkit-daemon1795-21rtkit-daemon07:51:361
179699340,3rtkit-daemon0-21swapper/112:15:521
179699340,3rtkit-daemon0-21swapper/109:00:261
2612669993329,2cyclictest2758668-21tr11:25:280
179699330,4rtkit-daemon1795-21rtkit-daemon11:55:080
179699330,3rtkit-daemon0-21swapper/108:07:520
179699330,3rtkit-daemon0-21swapper/008:59:321
179699320,3rtkit-daemon1795-21rtkit-daemon09:28:081
179699320,3rtkit-daemon0-21swapper/112:32:300
179699320,3rtkit-daemon0-21swapper/012:07:471
179699320,3rtkit-daemon0-21swapper/009:24:561
179699320,3rtkit-daemon0-21swapper/009:24:561
179699320,2rtkit-daemon1795-21rtkit-daemon11:44:560
179699310,4rtkit-daemon1795-21rtkit-daemon09:15:351
179699310,4rtkit-daemon1795-21rtkit-daemon08:32:411
179699310,4rtkit-daemon1795-21rtkit-daemon07:42:280
179699310,3rtkit-daemon1795-21rtkit-daemon10:20:521
179699310,3rtkit-daemon0-21swapper/110:21:050
179699310,3rtkit-daemon0-21swapper/107:47:220
179699310,3rtkit-daemon0-21swapper/012:11:421
179699310,3rtkit-daemon0-21swapper/011:54:261
179699310,3rtkit-daemon0-21swapper/011:15:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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