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2026-05-05 - 22:24
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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 Tue May 05, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491720,5ptp4l0-21swapper/111:52:221
134491670,3ptp4l121rcu_preempt10:15:230
134491610,4ptp4l0-21swapper/012:25:190
134491600,4ptp4l0-21swapper/209:12:562
247362590,5sleep224740-21phc2sys12:30:232
134491590,3ptp4l9480-21fgrep08:15:242
134491580,4ptp4l0-21swapper/109:55:231
134491580,3ptp4l0-21swapper/308:25:283
134491580,3ptp4l0-21swapper/212:14:162
134491580,3ptp4l0-21swapper/008:30:190
134491580,3ptp4l0-21swapper/008:10:220
134491580,19ptp4l0-21swapper/108:35:441
134491570,5ptp4l0-21swapper/110:35:141
134491570,4ptp4l0-21swapper/110:05:131
134491570,3ptp4l0-21swapper/107:55:251
134491570,3ptp4l0-21swapper/007:48:250
134491560,5ptp4l0-21swapper/109:07:031
134491560,4ptp4l0-21swapper/210:20:092
134491550,4ptp4l0-21swapper/109:54:531
134491540,4ptp4l0-21swapper/107:33:321
134491540,13ptp4l0-21swapper/210:06:042
134491530,4ptp4l0-21swapper/209:34:522
134491530,4ptp4l0-21swapper/209:34:522
134491530,4ptp4l0-21swapper/108:55:131
134491530,4ptp4l0-21swapper/107:29:511
134491520,4ptp4l0-21swapper/011:22:090
134491520,3ptp4l0-21swapper/110:25:591
121252520,4sleep00-21swapper/010:55:180
134491510,5ptp4l0-21swapper/210:10:272
134491510,5ptp4l0-21swapper/110:32:511
134491510,4ptp4l13373-21if_err_enp4s008:25:181
134491510,4ptp4l0-21swapper/210:33:432
134491510,4ptp4l0-21swapper/210:26:082
134491510,4ptp4l0-21swapper/012:36:580
134491510,4ptp4l0-21swapper/009:03:100
134491510,3ptp4l0-21swapper/109:00:231
134491510,3ptp4l0-21swapper/009:20:180
134491500,4ptp4l0-21swapper/309:18:593
134491500,4ptp4l0-21swapper/212:17:502
134491500,4ptp4l0-21swapper/112:26:331
134491500,4ptp4l0-21swapper/111:55:051
134491500,4ptp4l0-21swapper/110:20:561
134491500,4ptp4l0-21swapper/109:22:561
134491500,4ptp4l0-21swapper/107:52:231
134491500,4ptp4l0-21swapper/107:43:421
134491500,4ptp4l0-21swapper/007:42:320
134491500,12ptp4l0-21swapper/310:33:503
134491490,4ptp4l0-21swapper/311:15:383
134491490,4ptp4l0-21swapper/108:45:561
134491490,4ptp4l0-21swapper/107:18:281
134491490,4ptp4l0-21swapper/107:12:101
134491490,4ptp4l0-21swapper/010:30:090
134491490,4ptp4l0-21swapper/009:57:250
134491490,3ptp4l0-21swapper/209:25:302
134491490,3ptp4l0-21swapper/110:12:471
134491480,4ptp4l0-21swapper/312:29:153
134491480,4ptp4l0-21swapper/310:02:093
134491480,4ptp4l0-21swapper/111:31:271
134491480,4ptp4l0-21swapper/010:20:400
134491480,18ptp4l9-21ksoftirqd/009:42:180
134491470,9ptp4l0-21swapper/011:05:150
134491470,9ptp4l0-21swapper/011:05:150
134491470,9ptp4l0-21swapper/011:01:190
134491470,5ptp4l0-21swapper/008:56:120
134491470,4ptp4l0-21swapper/310:45:573
134491470,4ptp4l0-21swapper/307:28:353
134491470,4ptp4l0-21swapper/111:20:561
134491470,4ptp4l0-21swapper/011:16:220
134491470,4ptp4l0-21swapper/008:38:280
134491470,3ptp4l0-21swapper/110:15:211
134491470,3ptp4l0-21swapper/009:09:480
134491470,3ptp4l0-21swapper/008:17:480
134491460,4ptp4l0-21swapper/110:44:181
134491460,4ptp4l0-21swapper/108:52:321
134491460,3ptp4l0-21swapper/208:20:202
134491460,3ptp4l0-21swapper/107:22:151
134491460,3ptp4l0-21swapper/010:45:190
134491460,11ptp4l8273-21grep11:55:232
134491460,11ptp4l13185-21cstates09:35:152
139932450,4sleep20-21swapper/211:00:132
134491450,6ptp4l0-21swapper/111:00:501
134491450,3ptp4l0-21swapper/010:40:230
134491450,13ptp4l9-21ksoftirqd/007:24:480
134491450,11ptp4l0-21swapper/211:45:112
134491450,11ptp4l0-21swapper/107:07:381
134491450,10ptp4l0-21swapper/009:25:320
134491440,9ptp4l0-21swapper/211:50:022
134491440,9ptp4l0-21swapper/210:55:332
134491440,9ptp4l0-21swapper/208:59:552
134491440,4ptp4l0-21swapper/308:56:283
134491440,4ptp4l0-21swapper/108:00:021
134491440,3ptp4l0-21swapper/010:03:300
134491440,3ptp4l0-21swapper/009:17:320
134491440,3ptp4l0-21swapper/008:48:310
134491440,10ptp4l0-21swapper/212:24:012
134491440,10ptp4l0-21swapper/209:57:152
10469994439,3cyclictest33-21ksoftirqd/211:40:002
134491430,9ptp4l0-21swapper/211:31:232
134491430,9ptp4l0-21swapper/210:02:072
134491430,9ptp4l0-21swapper/209:18:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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