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2026-04-10 - 16:04
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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 100 highest latencies:
System rackdslot1.osadl.org (updated Fri Apr 10, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
981721250,2sleep10-21swapper/110:15:251
134491710,3ptp4l0-21swapper/012:20:210
134491620,5ptp4l0-21swapper/007:10:220
134491620,17ptp4l0-21swapper/110:25:201
300202610,6sleep10-21swapper/108:40:251
134491590,4ptp4l0-21swapper/107:49:541
134491580,5ptp4l0-21swapper/107:09:451
134491580,3ptp4l0-21swapper/310:05:223
134491580,3ptp4l0-21swapper/111:15:201
134491570,4ptp4l0-21swapper/308:07:143
134491570,4ptp4l0-21swapper/108:19:481
134491570,4ptp4l0-21swapper/012:35:140
134491570,3ptp4l0-21swapper/208:46:152
134491560,3ptp4l0-21swapper/309:39:593
134491560,3ptp4l0-21swapper/111:10:171
134491550,3ptp4l14047-21ls09:15:260
134491550,3ptp4l0-21swapper/011:19:130
134491540,4ptp4l0-21swapper/312:16:113
134491540,4ptp4l0-21swapper/012:02:150
134491540,4ptp4l0-21swapper/012:02:140
134491540,3ptp4l0-21swapper/210:26:232
134491530,4ptp4l0-21swapper/308:19:563
134491530,4ptp4l0-21swapper/207:20:512
134491530,4ptp4l0-21swapper/011:40:280
134491530,4ptp4l0-21swapper/010:25:270
134491530,3ptp4l0-21swapper/112:22:581
134491530,3ptp4l0-21swapper/112:10:181
134491530,3ptp4l0-21swapper/109:30:271
134491530,3ptp4l0-21swapper/007:48:340
134491530,11ptp4l0-21swapper/208:15:122
134491520,4ptp4l0-21swapper/211:31:462
134491520,4ptp4l0-21swapper/209:42:512
134491520,4ptp4l0-21swapper/207:53:582
134491520,4ptp4l0-21swapper/107:17:011
134491520,4ptp4l0-21swapper/008:08:150
134491520,3ptp4l0-21swapper/310:00:323
134491510,4ptp4l0-21swapper/212:10:082
134491510,4ptp4l0-21swapper/211:48:122
134491510,4ptp4l0-21swapper/110:56:081
134491500,4ptp4l0-21swapper/312:26:573
134491500,4ptp4l0-21swapper/210:51:022
134491500,4ptp4l0-21swapper/209:37:452
134491500,4ptp4l0-21swapper/009:26:100
134491500,3ptp4l0-21swapper/207:15:242
134491500,3ptp4l0-21swapper/110:05:141
134491490,4ptp4l0-21swapper/312:35:483
134491490,4ptp4l0-21swapper/309:46:363
134491490,4ptp4l0-21swapper/309:23:273
134491490,4ptp4l0-21swapper/308:58:453
134491490,4ptp4l0-21swapper/211:58:082
134491490,4ptp4l0-21swapper/210:23:562
134491490,4ptp4l0-21swapper/210:17:292
134491490,4ptp4l0-21swapper/209:48:412
134491490,4ptp4l0-21swapper/112:33:161
134491490,4ptp4l0-21swapper/112:18:571
134491490,4ptp4l0-21swapper/011:45:210
134491490,3ptp4l0-21swapper/209:54:192
134491480,5ptp4l0-21swapper/007:09:410
134491480,4ptp4l0-21swapper/309:12:203
134491480,4ptp4l0-21swapper/207:31:262
134491480,4ptp4l0-21swapper/107:13:091
134491480,3ptp4l0-21swapper/210:10:572
134491480,3ptp4l0-21swapper/207:45:422
134491470,6ptp4l0-21swapper/109:37:111
134491470,4ptp4l0-21swapper/208:57:092
134491470,4ptp4l0-21swapper/207:40:432
134491470,4ptp4l0-21swapper/207:40:432
134491470,4ptp4l0-21swapper/110:54:591
134491470,4ptp4l0-21swapper/109:49:101
134491470,4ptp4l0-21swapper/108:50:411
134491470,4ptp4l0-21swapper/108:39:121
134491470,4ptp4l0-21swapper/107:24:591
134491470,4ptp4l0-21swapper/009:57:010
134491470,4ptp4l0-21swapper/009:11:080
134491470,4ptp4l0-21swapper/009:01:000
134491470,4ptp4l0-21swapper/008:53:230
134491470,3ptp4l0-21swapper/111:55:151
1862399463,3cyclictest121rcu_preempt09:00:151
134491460,4ptp4l0-21swapper/109:57:591
134491460,4ptp4l0-21swapper/008:43:010
134491460,4ptp4l0-21swapper/007:55:140
134491460,3ptp4l0-21swapper/308:21:133
134491460,3ptp4l0-21swapper/107:50:011
134691450,11getstats0-21swapper/109:40:191
134491450,5ptp4l0-21swapper/312:20:103
134491450,4ptp4l0-21swapper/312:33:503
134491450,4ptp4l0-21swapper/111:44:021
134491450,4ptp4l0-21swapper/110:45:401
134491450,4ptp4l0-21swapper/110:38:021
134491450,4ptp4l0-21swapper/107:39:021
134491450,3ptp4l0-21swapper/209:32:342
134491450,3ptp4l0-21swapper/207:07:142
134491450,3ptp4l0-21swapper/111:53:351
134491450,3ptp4l0-21swapper/109:50:411
134491450,3ptp4l0-21swapper/108:30:171
134491450,3ptp4l0-21swapper/010:08:050
134491450,2ptp4l0-21swapper/208:12:362
134491450,2ptp4l0-21swapper/108:25:131
134491450,10ptp4l0-21swapper/209:04:552
134691440,11getstats0-21swapper/110:23:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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