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2026-04-01 - 21:20
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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 Wed Apr 01, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20205642271186,28sleep00-21swapper/007:05:020
20221262260187,58sleep10-21swapper/107:06:471
213856221560,1sleep10-21swapper/110:41:561
179699560,4rtkit-daemon1795-21rtkit-daemon11:31:340
179699560,3rtkit-daemon1795-21rtkit-daemon09:40:221
21205512550,4sleep10-21swapper/110:16:311
179699550,5rtkit-daemon1795-21rtkit-daemon10:19:160
179699540,4rtkit-daemon1795-21rtkit-daemon12:31:410
179699530,4rtkit-daemon1795-21rtkit-daemon10:03:380
179699520,4rtkit-daemon1795-21rtkit-daemon09:56:340
179699520,3rtkit-daemon1795-21rtkit-daemon07:25:301
179699510,3rtkit-daemon1795-21rtkit-daemon11:56:211
179699490,3rtkit-daemon1795-21rtkit-daemon09:04:051
21252982420,5sleep00-21swapper/010:24:020
179699400,5rtkit-daemon2198941-21taskset12:07:100
21679602390,2sleep00-21swapper/011:24:570
179699370,6rtkit-daemon2041429-21runrttasks07:52:200
179699370,5rtkit-daemon2075339-21ssh09:15:021
179699370,3rtkit-daemon1795-21rtkit-daemon09:00:160
179699360,3rtkit-daemon0-21swapper/111:54:531
179699360,3rtkit-daemon0-21swapper/107:56:100
179699350,3rtkit-daemon0-21swapper/108:39:500
179699340,4rtkit-daemon1795-21rtkit-daemon12:23:080
179699340,4rtkit-daemon1795-21rtkit-daemon12:19:310
179699340,4rtkit-daemon1795-21rtkit-daemon12:03:001
179699340,3rtkit-daemon0-21swapper/109:47:350
179699340,3rtkit-daemon0-21swapper/109:15:200
179699340,3rtkit-daemon0-21swapper/107:40:400
179699340,3rtkit-daemon0-21swapper/012:35:441
179699340,3rtkit-daemon0-21swapper/012:24:041
179699340,3rtkit-daemon0-21swapper/011:07:511
179699340,3rtkit-daemon0-21swapper/008:29:441
179699340,3rtkit-daemon0-21swapper/007:22:401
179699330,4rtkit-daemon1795-21rtkit-daemon07:11:130
179699330,3rtkit-daemon0-21swapper/011:15:511
179699330,3rtkit-daemon0-21swapper/010:53:501
179699330,3rtkit-daemon0-21swapper/010:38:381
179699330,3rtkit-daemon0-21swapper/010:10:401
179699330,3rtkit-daemon0-21swapper/009:49:491
179699330,3rtkit-daemon0-21swapper/008:33:591
2022544993228,2cyclictest2139769-21kworker/0:211:00:370
179699320,4rtkit-daemon1795-21rtkit-daemon07:45:451
179699320,3rtkit-daemon1795-21rtkit-daemon11:47:521
179699320,3rtkit-daemon1795-21rtkit-daemon10:47:340
179699320,3rtkit-daemon1795-21rtkit-daemon08:25:400
179699320,3rtkit-daemon0-21swapper/111:48:130
179699320,3rtkit-daemon0-21swapper/107:48:180
179699320,3rtkit-daemon0-21swapper/010:45:051
179699320,3rtkit-daemon0-21swapper/010:03:581
179699320,3rtkit-daemon0-21swapper/009:56:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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