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2026-04-19 - 02:10
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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 Sat Apr 18, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31330852259217,28sleep00-21swapper/007:09:450
31313462255180,59sleep10-21swapper/107:05:021
179699610,4rtkit-daemon1795-21rtkit-daemon07:15:410
179699530,4rtkit-daemon1795-21rtkit-daemon12:25:190
179699520,4rtkit-daemon1795-21rtkit-daemon09:16:040
179699520,4rtkit-daemon1795-21rtkit-daemon08:45:210
31494212510,1chrt3149420-21/usr/sbin/munin07:45:200
179699510,4rtkit-daemon1795-21rtkit-daemon11:37:520
179699510,4rtkit-daemon1795-21rtkit-daemon10:34:170
179699510,4rtkit-daemon1795-21rtkit-daemon10:29:480
179699500,4rtkit-daemon1795-21rtkit-daemon09:03:501
179699500,3rtkit-daemon1795-21rtkit-daemon08:56:411
179699480,4rtkit-daemon1795-21rtkit-daemon07:35:490
179699480,3rtkit-daemon1795-21rtkit-daemon09:14:370
179699450,4rtkit-daemon0-21swapper/111:45:291
32468612440,4sleep10-21swapper/110:38:341
31671322440,1sleep13167130-21ls08:30:211
179699400,3rtkit-daemon0-21swapper/108:37:111
179699400,3rtkit-daemon0-21swapper/011:25:100
32507292380,2sleep03250735-21ssh10:44:180
179699380,3rtkit-daemon0-21swapper/111:40:031
179699380,3rtkit-daemon0-21swapper/111:40:031
179699370,5rtkit-daemon3163213-21memory08:20:171
179699370,5rtkit-daemon1795-21rtkit-daemon08:20:100
179699370,4rtkit-daemon1795-21rtkit-daemon10:00:000
179699370,3rtkit-daemon0-21swapper/010:56:250
179699370,3rtkit-daemon0-21swapper/010:04:280
179699360,3rtkit-daemon0-21swapper/111:10:281
179699360,3rtkit-daemon0-21swapper/007:29:230
179699350,5rtkit-daemon3284898-21ssh11:32:401
179699350,3rtkit-daemon1795-21rtkit-daemon08:04:260
179699350,3rtkit-daemon0-21swapper/012:36:061
179699350,3rtkit-daemon0-21swapper/011:03:320
179699350,3rtkit-daemon0-21swapper/010:05:091
179699350,3rtkit-daemon0-21swapper/007:24:080
179699340,4rtkit-daemon1795-21rtkit-daemon12:13:150
179699340,4rtkit-daemon1795-21rtkit-daemon09:27:430
179699340,3rtkit-daemon0-21swapper/011:23:171
179699330,5rtkit-daemon3304695-21ntp_states12:00:201
179699330,5rtkit-daemon3224634-21ssh10:07:300
179699330,4rtkit-daemon1795-21rtkit-daemon10:20:410
179699330,3rtkit-daemon0-21swapper/009:31:371
179699330,3rtkit-daemon0-21swapper/008:41:371
179699330,3rtkit-daemon0-21swapper/007:51:531
179699330,3rtkit-daemon0-21swapper/007:11:441
179699320,4rtkit-daemon1795-21rtkit-daemon08:12:470
179699320,4rtkit-daemon1795-21rtkit-daemon07:11:310
179699320,3rtkit-daemon1795-21rtkit-daemon09:29:471
179699320,3rtkit-daemon0-21swapper/012:26:071
179699320,3rtkit-daemon0-21swapper/010:56:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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