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2026-09-24 - 01:29
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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 highest latencies:
System rackdslot4.osadl.org (updated Wed Sep 23, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
112402226162,52sleep20-21swapper/207:08:472
138591213163,39phc2sys0-21swapper/307:06:143
112132202169,21sleep00-21swapper/007:08:250
112392200167,22sleep10-21swapper/107:08:461
138491610,1ptp4l401ktimersoftd/311:35:253
289812570,2sleep20-21swapper/207:45:132
138491570,1ptp4l401ktimersoftd/308:15:223
257322550,2sleep30-21swapper/310:50:203
138491550,1ptp4l401ktimersoftd/310:43:293
138491550,1ptp4l401ktimersoftd/309:31:423
76222540,3sleep07628-21irqrtprio09:10:190
138491460,0ptp4l401ktimersoftd/308:33:263
138491440,0ptp4l401ktimersoftd/309:46:153
138491420,0ptp4l401ktimersoftd/308:53:033
138491420,0ptp4l401ktimersoftd/307:10:573
138491410,0ptp4l401ktimersoftd/310:15:153
138491400,0ptp4l401ktimersoftd/309:55:533
1162999390,37cyclictest0-21swapper/110:11:541
11628993934,3cyclictest8878-21idleruntime-cro08:10:010
11628993932,4cyclictest9-21ksoftirqd/010:20:130
11629993831,4cyclictest25-21ksoftirqd/110:30:161
11630993730,4cyclictest33-21ksoftirqd/209:25:392
1162999378,28cyclictest0-21swapper/110:02:121
178632360,1sleep20-21swapper/209:30:242
11631993631,3cyclictest41-21ksoftirqd/311:41:473
11631993630,4cyclictest41-21ksoftirqd/311:17:493
11631993630,4cyclictest41-21ksoftirqd/309:50:513
11631993630,4cyclictest41-21ksoftirqd/309:12:403
11631993630,4cyclictest41-21ksoftirqd/307:39:403
11631993629,5cyclictest41-21ksoftirqd/308:00:473
11631993629,4cyclictest41-21ksoftirqd/312:35:063
11631993629,4cyclictest41-21ksoftirqd/312:31:013
11630993631,3cyclictest33-21ksoftirqd/207:20:112
11630993630,4cyclictest33-21ksoftirqd/211:32:472
11630993630,4cyclictest33-21ksoftirqd/211:28:582
11630993630,4cyclictest33-21ksoftirqd/211:28:582
11630993630,4cyclictest33-21ksoftirqd/209:53:592
11630993630,4cyclictest33-21ksoftirqd/208:59:432
11630993629,5cyclictest33-21ksoftirqd/211:46:152
11629993630,4cyclictest25-21ksoftirqd/108:42:171
11629993611,23cyclictest0-21swapper/111:03:341
11631993530,3cyclictest41-21ksoftirqd/308:26:013
11631993529,4cyclictest41-21ksoftirqd/311:12:433
11631993529,4cyclictest41-21ksoftirqd/310:49:403
11631993529,4cyclictest41-21ksoftirqd/310:09:083
11631993528,4cyclictest41-21ksoftirqd/311:49:303
11630993530,3cyclictest33-21ksoftirqd/211:52:132
11630993529,4cyclictest33-21ksoftirqd/211:20:272
11630993529,4cyclictest33-21ksoftirqd/211:11:332
11630993529,4cyclictest33-21ksoftirqd/211:01:182
11630993529,4cyclictest33-21ksoftirqd/210:26:372
11630993529,4cyclictest33-21ksoftirqd/209:44:272
11630993529,4cyclictest33-21ksoftirqd/207:59:212
11630993528,4cyclictest33-21ksoftirqd/209:00:432
11629993530,3cyclictest25-21ksoftirqd/110:55:111
11629993530,3cyclictest25-21ksoftirqd/110:55:111
11629993530,3cyclictest25-21ksoftirqd/109:40:111
11629993529,4cyclictest25-21ksoftirqd/111:29:301
11629993529,4cyclictest25-21ksoftirqd/111:29:301
11629993529,3cyclictest25-21ksoftirqd/108:00:591
11628993530,3cyclictest9-21ksoftirqd/011:55:100
11628993529,4cyclictest9-21ksoftirqd/011:44:450
11628993529,4cyclictest9-21ksoftirqd/009:57:580
11628993529,4cyclictest9-21ksoftirqd/007:12:090
11628993528,5cyclictest9-21ksoftirqd/011:02:520
11628993528,4cyclictest9-21ksoftirqd/009:09:080
138491340,0ptp4l401ktimersoftd/310:35:273
11631993428,4cyclictest41-21ksoftirqd/311:50:463
11631993428,4cyclictest41-21ksoftirqd/310:31:383
11631993428,4cyclictest41-21ksoftirqd/310:23:403
11631993428,4cyclictest41-21ksoftirqd/309:09:233
11631993428,4cyclictest41-21ksoftirqd/309:01:293
11631993428,4cyclictest41-21ksoftirqd/307:51:563
11630993429,3cyclictest33-21ksoftirqd/209:10:112
11630993428,4cyclictest33-21ksoftirqd/211:19:472
11630993428,4cyclictest33-21ksoftirqd/210:33:592
11630993428,4cyclictest33-21ksoftirqd/208:47:102
11630993428,4cyclictest33-21ksoftirqd/208:34:442
11629993429,3cyclictest25-21ksoftirqd/112:05:091
11629993429,3cyclictest25-21ksoftirqd/108:30:111
11629993428,4cyclictest25-21ksoftirqd/111:16:301
11629993428,4cyclictest25-21ksoftirqd/110:07:581
11629993428,4cyclictest25-21ksoftirqd/107:33:121
11629993427,4cyclictest25-21ksoftirqd/112:16:551
11629993427,4cyclictest25-21ksoftirqd/107:58:591
11629993427,4cyclictest25-21ksoftirqd/107:46:041
11628993429,3cyclictest9-21ksoftirqd/012:05:000
11628993429,3cyclictest9-21ksoftirqd/010:05:160
11628993428,4cyclictest9-21ksoftirqd/011:47:130
11628993428,4cyclictest9-21ksoftirqd/010:52:250
11628993428,4cyclictest9-21ksoftirqd/010:19:440
11628993428,4cyclictest9-21ksoftirqd/008:41:320
11628993428,4cyclictest9-21ksoftirqd/007:32:350
11628993428,3cyclictest9-21ksoftirqd/008:55:470
11628993427,5cyclictest9-21ksoftirqd/008:48:330
11628993427,4cyclictest9-21ksoftirqd/007:55:380
138491330,9ptp4l0-21swapper/310:11:183
11631993329,3cyclictest41-21ksoftirqd/310:04:463
11631993327,4cyclictest41-21ksoftirqd/307:31:543
11631993326,4cyclictest41-21ksoftirqd/311:55:513
11631993326,4cyclictest41-21ksoftirqd/307:20:033
11630993328,3cyclictest33-21ksoftirqd/211:57:122
11630993328,3cyclictest33-21ksoftirqd/211:05:312
11630993328,3cyclictest33-21ksoftirqd/210:47:332
11630993327,4cyclictest33-21ksoftirqd/210:50:362
11630993327,4cyclictest33-21ksoftirqd/207:30:412
11630993326,4cyclictest33-21ksoftirqd/208:10:012
11630993326,4cyclictest33-21ksoftirqd/208:02:462
11630993321,10cyclictest33-21ksoftirqd/212:28:472
11629993327,4cyclictest25-21ksoftirqd/110:21:341
11629993327,4cyclictest25-21ksoftirqd/109:16:511
11629993327,4cyclictest25-21ksoftirqd/109:08:491
11629993327,4cyclictest25-21ksoftirqd/108:25:521
11629993327,4cyclictest25-21ksoftirqd/108:20:061
11629993327,4cyclictest25-21ksoftirqd/107:22:571
11628993328,3cyclictest9-21ksoftirqd/008:00:440
11628993328,3cyclictest9-21ksoftirqd/007:50:100
11628993327,4cyclictest9-21ksoftirqd/011:33:130
11628993327,4cyclictest9-21ksoftirqd/010:48:520
11628993327,4cyclictest9-21ksoftirqd/009:28:330
11628993327,4cyclictest9-21ksoftirqd/007:27:460
138491320,0ptp4l401ktimersoftd/311:25:153
138491320,0ptp4l401ktimersoftd/311:25:153
11631993226,4cyclictest41-21ksoftirqd/312:27:523
11631993226,4cyclictest41-21ksoftirqd/312:22:003
11631993226,4cyclictest41-21ksoftirqd/309:28:563
11631993226,4cyclictest41-21ksoftirqd/308:12:263
11631993226,4cyclictest41-21ksoftirqd/308:07:373
11631993226,4cyclictest41-21ksoftirqd/307:58:133
11631993225,4cyclictest41-21ksoftirqd/308:38:063
11631993225,4cyclictest41-21ksoftirqd/307:48:193
11630993227,3cyclictest33-21ksoftirqd/211:00:012
11630993227,3cyclictest33-21ksoftirqd/211:00:012
11630993227,3cyclictest33-21ksoftirqd/210:24:182
11630993226,4cyclictest33-21ksoftirqd/211:40:532
11630993226,4cyclictest33-21ksoftirqd/207:41:402
11630993226,3cyclictest33-21ksoftirqd/211:37:432
11630993225,5cyclictest33-21ksoftirqd/207:11:032
11630993225,4cyclictest33-21ksoftirqd/207:37:572
11629993227,3cyclictest25-21ksoftirqd/110:15:271
11629993227,3cyclictest25-21ksoftirqd/108:53:221
11629993226,4cyclictest25-21ksoftirqd/112:31:591
11629993226,4cyclictest25-21ksoftirqd/111:40:531
11629993226,4cyclictest25-21ksoftirqd/109:28:421
11629993226,4cyclictest25-21ksoftirqd/109:23:171
11629993225,4cyclictest25-21ksoftirqd/111:21:401
11628993227,3cyclictest9-21ksoftirqd/012:20:390
11628993227,3cyclictest9-21ksoftirqd/011:35:110
11628993227,3cyclictest9-21ksoftirqd/010:02:480
11628993227,3cyclictest9-21ksoftirqd/008:29:400
11628993226,4cyclictest9-21ksoftirqd/012:38:050
11628993226,4cyclictest9-21ksoftirqd/012:19:110
11628993226,4cyclictest9-21ksoftirqd/011:53:390
11628993226,4cyclictest9-21ksoftirqd/011:28:400
11628993226,4cyclictest9-21ksoftirqd/011:28:400
11628993226,4cyclictest9-21ksoftirqd/010:26:310
11628993226,4cyclictest9-21ksoftirqd/008:24:230
138491310,8ptp4l401ktimersoftd/307:27:593
138491310,0ptp4l401ktimersoftd/308:49:133
11631993125,4cyclictest41-21ksoftirqd/308:58:153
11631993125,4cyclictest41-21ksoftirqd/308:41:593
11631993125,4cyclictest41-21ksoftirqd/308:24:503
11631993125,3cyclictest41-21ksoftirqd/312:00:263
11631993125,3cyclictest41-21ksoftirqd/311:35:013
11630993126,3cyclictest33-21ksoftirqd/210:41:322
11630993126,3cyclictest33-21ksoftirqd/209:08:032
11630993125,4cyclictest33-21ksoftirqd/210:03:502
11629993126,3cyclictest25-21ksoftirqd/112:12:411
11629993125,4cyclictest25-21ksoftirqd/111:50:041
11629993125,4cyclictest25-21ksoftirqd/111:48:521
11629993125,4cyclictest25-21ksoftirqd/111:13:411
11629993125,4cyclictest25-21ksoftirqd/109:53:541
11629993125,4cyclictest25-21ksoftirqd/109:32:511
11629993125,3cyclictest25-21ksoftirqd/111:07:231
11629993124,4cyclictest25-21ksoftirqd/108:48:591
11628993126,3cyclictest9-21ksoftirqd/011:13:110
11628993126,3cyclictest9-21ksoftirqd/010:37:420
11628993126,3cyclictest9-21ksoftirqd/010:12:010
11628993125,4cyclictest9-21ksoftirqd/012:13:380
11628993125,4cyclictest9-21ksoftirqd/009:16:210
11628993125,4cyclictest9-21ksoftirqd/008:38:550
11628993125,4cyclictest9-21ksoftirqd/008:33:570
11628993124,5cyclictest9-21ksoftirqd/009:53:530
138491300,0ptp4l401ktimersoftd/311:05:423
138491300,0ptp4l401ktimersoftd/310:58:243
138491300,0ptp4l401ktimersoftd/310:58:243
138491300,0ptp4l401ktimersoftd/309:36:073
11631993024,4cyclictest41-21ksoftirqd/309:41:283
11631993024,4cyclictest41-21ksoftirqd/309:24:583
11630993026,3cyclictest33-21ksoftirqd/210:17:472
11630993025,3cyclictest33-21ksoftirqd/209:21:562
11630993025,3cyclictest33-21ksoftirqd/208:27:582
11630993024,4cyclictest33-21ksoftirqd/212:17:242
11630993024,4cyclictest33-21ksoftirqd/210:07:262
11630993024,4cyclictest33-21ksoftirqd/209:45:482
11630993024,4cyclictest33-21ksoftirqd/208:23:442
11629993025,3cyclictest25-21ksoftirqd/112:29:581
11629993025,3cyclictest25-21ksoftirqd/112:20:351
11629993024,4cyclictest25-21ksoftirqd/111:36:521
11629993024,4cyclictest25-21ksoftirqd/110:42:361
11629993024,4cyclictest25-21ksoftirqd/109:55:051
11629993024,4cyclictest25-21ksoftirqd/109:46:321
11629993024,4cyclictest25-21ksoftirqd/108:39:081
11629993024,4cyclictest25-21ksoftirqd/107:50:581
11629993024,4cyclictest25-21ksoftirqd/107:43:321
1162999300,28cyclictest0-21swapper/112:00:031
11628993025,3cyclictest9-21ksoftirqd/011:17:080
11628993025,3cyclictest9-21ksoftirqd/009:47:020
11628993025,3cyclictest9-21ksoftirqd/009:38:480
11628993025,3cyclictest9-21ksoftirqd/009:04:300
11628993025,3cyclictest9-21ksoftirqd/007:24:090
11628993024,4cyclictest9-21ksoftirqd/011:23:060
11628993024,4cyclictest9-21ksoftirqd/008:52:350
11628993024,4cyclictest9-21ksoftirqd/008:10:550
138491290,0ptp4l401ktimersoftd/312:14:153
138491290,0ptp4l401ktimersoftd/307:15:273
11631992924,3cyclictest41-21ksoftirqd/312:08:493
11631992923,4cyclictest41-21ksoftirqd/309:19:063
11631992923,4cyclictest41-21ksoftirqd/307:43:363
11630992924,3cyclictest33-21ksoftirqd/212:11:122
11630992923,4cyclictest33-21ksoftirqd/210:14:482
11630992923,4cyclictest33-21ksoftirqd/208:14:332
11630992923,4cyclictest33-21ksoftirqd/207:53:482
11629992924,3cyclictest25-21ksoftirqd/110:51:471
11629992924,3cyclictest25-21ksoftirqd/109:00:101
11629992924,3cyclictest25-21ksoftirqd/107:10:101
11629992923,4cyclictest25-21ksoftirqd/110:46:541
11629992923,4cyclictest25-21ksoftirqd/110:35:541
11629992923,4cyclictest25-21ksoftirqd/110:26:191
11629992923,4cyclictest25-21ksoftirqd/108:58:561
11629992923,4cyclictest25-21ksoftirqd/108:07:061
11629992923,4cyclictest25-21ksoftirqd/107:16:561
11629992922,5cyclictest25-21ksoftirqd/111:55:101
11629992921,6cyclictest25-21ksoftirqd/108:10:591
11628992924,3cyclictest9-21ksoftirqd/012:25:450
11628992924,3cyclictest9-21ksoftirqd/010:58:480
11628992924,3cyclictest9-21ksoftirqd/010:58:480
11628992924,3cyclictest9-21ksoftirqd/009:41:160
11628992924,3cyclictest9-21ksoftirqd/009:30:420
11628992924,3cyclictest9-21ksoftirqd/008:17:320
138491280,7ptp4l401ktimersoftd/311:23:203
138491280,0ptp4l401ktimersoftd/310:27:043
11631992823,3cyclictest41-21ksoftirqd/312:15:373
11630992822,4cyclictest33-21ksoftirqd/212:23:262
11630992822,4cyclictest33-21ksoftirqd/212:01:162
11630992822,4cyclictest33-21ksoftirqd/208:54:582
11629992823,3cyclictest25-21ksoftirqd/109:14:181
11629992822,4cyclictest25-21ksoftirqd/107:25:541
11631992722,3cyclictest41-21ksoftirqd/311:02:273
11630992722,3cyclictest33-21ksoftirqd/212:33:432
11630992721,4cyclictest33-21ksoftirqd/207:27:402
11629992723,2cyclictest25-21ksoftirqd/109:35:011
11629992722,3cyclictest25-21ksoftirqd/112:35:471
11629992720,5cyclictest25-21ksoftirqd/108:19:461
11628992722,3cyclictest9-21ksoftirqd/012:34:310
11628992722,3cyclictest9-21ksoftirqd/007:45:560
11630992621,3cyclictest33-21ksoftirqd/212:38:132
11630992621,3cyclictest33-21ksoftirqd/212:05:502
11630992621,3cyclictest33-21ksoftirqd/209:56:132
11630992621,3cyclictest33-21ksoftirqd/208:41:252
11630992620,4cyclictest33-21ksoftirqd/209:36:342
11629992621,3cyclictest25-21ksoftirqd/107:35:111
11628992620,4cyclictest9-21ksoftirqd/012:05:160
11628992620,3cyclictest9-21ksoftirqd/010:40:330
11630992520,3cyclictest33-21ksoftirqd/209:18:272
11630992520,3cyclictest33-21ksoftirqd/208:19:062
11628992520,3cyclictest9-21ksoftirqd/007:44:450
11628992519,4cyclictest9-21ksoftirqd/010:33:570
11630992419,3cyclictest33-21ksoftirqd/210:39:012
11630992419,3cyclictest33-21ksoftirqd/208:39:152
11630992419,3cyclictest33-21ksoftirqd/207:15:232
11628992419,3cyclictest9-21ksoftirqd/009:22:340
11628992418,4cyclictest9-21ksoftirqd/011:09:340
11629992216,4cyclictest25-21ksoftirqd/111:32:471
11628992015,3cyclictest9-21ksoftirqd/007:35:190
11628991915,2cyclictest9-21ksoftirqd/007:15:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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