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2026-08-18 - 17:30
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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 rackdslot3.osadl.org (updated Tue Aug 18, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
224912208174,23sleep20-21swapper/207:05:592
139491208175,22phc2sys0-21swapper/307:08:293
227852203170,22sleep00-21swapper/007:09:420
227242202169,22sleep10-21swapper/107:08:561
2639821370,6sleep22310199cyclictest11:45:202
1809221230,1sleep00-21swapper/008:05:220
202712770,5sleep120277-21dump-pmu-power09:20:001
139391720,1ptp4l391rcuc/309:45:263
201592580,2sleep00-21swapper/010:25:220
139391530,1ptp4l391rcuc/311:50:373
63742510,1sleep20-21swapper/209:55:282
243062510,1sleep20-21swapper/211:40:222
139391510,1ptp4l391rcuc/309:53:313
134491500,2getstats0-21swapper/311:28:263
139391490,1ptp4l401ktimersoftd/310:31:533
139391480,1ptp4l391rcuc/308:36:013
139391460,0ptp4l401ktimersoftd/309:57:583
2310199450,2cyclictest0-21swapper/211:05:232
139391440,0ptp4l401ktimersoftd/310:49:143
57898420,1rtkit-daemon577-21rtkit-daemon12:16:082
23099994236,3cyclictest2108-21cat09:50:000
139391420,1ptp4l401ktimersoftd/307:13:423
23101994033,4cyclictest33-21ksoftirqd/210:55:012
23102993731,4cyclictest41-21ksoftirqd/310:43:193
23102993731,4cyclictest41-21ksoftirqd/310:43:193
23100993731,4cyclictest25-21ksoftirqd/110:24:391
139391370,0ptp4l401ktimersoftd/307:26:193
23102993631,3cyclictest41-21ksoftirqd/312:25:523
23101993630,4cyclictest33-21ksoftirqd/208:54:262
23101993630,4cyclictest33-21ksoftirqd/207:50:402
23100993631,3cyclictest25-21ksoftirqd/110:45:001
23100993631,3cyclictest25-21ksoftirqd/110:45:001
23100993631,3cyclictest25-21ksoftirqd/109:45:131
23100993631,3cyclictest25-21ksoftirqd/108:11:531
23100993630,4cyclictest25-21ksoftirqd/110:05:541
23100993630,4cyclictest25-21ksoftirqd/109:57:191
23100993630,4cyclictest25-21ksoftirqd/109:42:391
23100993630,4cyclictest25-21ksoftirqd/108:52:561
23100993630,4cyclictest25-21ksoftirqd/107:42:001
23100993630,4cyclictest25-21ksoftirqd/107:28:281
23099993630,4cyclictest9-21ksoftirqd/011:23:470
23102993529,4cyclictest41-21ksoftirqd/311:45:523
23102993529,4cyclictest41-21ksoftirqd/310:37:013
23102993529,3cyclictest41-21ksoftirqd/311:04:133
23101993530,3cyclictest33-21ksoftirqd/210:02:512
23101993529,4cyclictest33-21ksoftirqd/211:31:522
23101993529,4cyclictest33-21ksoftirqd/211:22:052
23101993529,4cyclictest33-21ksoftirqd/211:19:562
23101993529,4cyclictest33-21ksoftirqd/208:59:232
23101993528,4cyclictest33-21ksoftirqd/209:32:172
23101993510,24cyclictest15791-21kworker/2:211:26:442
23100993530,3cyclictest25-21ksoftirqd/112:35:111
23100993530,3cyclictest25-21ksoftirqd/112:35:111
23100993530,3cyclictest25-21ksoftirqd/109:10:131
23100993529,4cyclictest25-21ksoftirqd/110:29:371
23100993529,4cyclictest25-21ksoftirqd/110:17:291
23100993529,4cyclictest25-21ksoftirqd/108:29:261
23100993529,4cyclictest25-21ksoftirqd/108:20:111
23100993529,4cyclictest25-21ksoftirqd/108:02:301
23100993529,4cyclictest25-21ksoftirqd/107:32:581
23100993528,4cyclictest25-21ksoftirqd/111:15:101
23099993530,3cyclictest18024-21latency_hist11:30:010
23099993529,4cyclictest9-21ksoftirqd/010:52:540
23099993529,4cyclictest9-21ksoftirqd/007:44:150
139391350,1ptp4l401ktimersoftd/311:56:073
23102993429,3cyclictest41-21ksoftirqd/308:28:473
23102993429,3cyclictest41-21ksoftirqd/307:30:213
23102993428,4cyclictest41-21ksoftirqd/310:51:253
23102993428,4cyclictest41-21ksoftirqd/308:23:343
23102993428,4cyclictest41-21ksoftirqd/308:06:503
23102993427,4cyclictest41-21ksoftirqd/312:14:253
23101993428,4cyclictest33-21ksoftirqd/212:13:472
23101993428,4cyclictest33-21ksoftirqd/209:28:562
23101993428,4cyclictest33-21ksoftirqd/209:13:072
23101993428,4cyclictest33-21ksoftirqd/207:16:462
23100993429,3cyclictest25-21ksoftirqd/111:06:311
23100993428,4cyclictest25-21ksoftirqd/112:31:031
23100993428,4cyclictest25-21ksoftirqd/112:28:541
23100993428,4cyclictest25-21ksoftirqd/112:06:051
23100993428,4cyclictest25-21ksoftirqd/111:29:061
23100993428,4cyclictest25-21ksoftirqd/107:46:171
23100993428,4cyclictest25-21ksoftirqd/107:16:481
23099993430,2cyclictest9-21ksoftirqd/011:10:190
23099993429,3cyclictest9-21ksoftirqd/008:10:100
23099993428,4cyclictest9-21ksoftirqd/010:21:210
23099993428,4cyclictest9-21ksoftirqd/009:09:090
23102993328,3cyclictest41-21ksoftirqd/309:05:123
23102993327,4cyclictest41-21ksoftirqd/312:21:073
23102993327,4cyclictest41-21ksoftirqd/310:23:373
23102993327,4cyclictest41-21ksoftirqd/310:16:393
23102993327,4cyclictest41-21ksoftirqd/309:13:533
23102993327,4cyclictest41-21ksoftirqd/307:36:283
23101993328,3cyclictest33-21ksoftirqd/210:21:592
23101993328,3cyclictest33-21ksoftirqd/209:55:002
23101993328,3cyclictest33-21ksoftirqd/208:05:132
23101993328,3cyclictest33-21ksoftirqd/207:10:112
23101993327,4cyclictest33-21ksoftirqd/211:57:472
23101993327,4cyclictest33-21ksoftirqd/210:17:142
23101993327,4cyclictest33-21ksoftirqd/209:09:422
23101993327,4cyclictest33-21ksoftirqd/208:26:152
23101993327,4cyclictest33-21ksoftirqd/207:57:422
23100993328,3cyclictest25-21ksoftirqd/109:02:381
23100993328,3cyclictest25-21ksoftirqd/107:50:101
23100993327,4cyclictest25-21ksoftirqd/111:32:311
23100993327,4cyclictest25-21ksoftirqd/110:59:571
23100993327,4cyclictest25-21ksoftirqd/110:31:251
23100993327,4cyclictest25-21ksoftirqd/109:39:021
23100993327,4cyclictest25-21ksoftirqd/109:06:121
23099993328,3cyclictest9-21ksoftirqd/008:35:090
23099993327,4cyclictest9-21ksoftirqd/012:27:340
23099993327,4cyclictest9-21ksoftirqd/012:12:330
23099993327,4cyclictest9-21ksoftirqd/009:11:250
23099993327,4cyclictest9-21ksoftirqd/008:47:540
139391330,1ptp4l401ktimersoftd/312:05:133
23102993227,3cyclictest41-21ksoftirqd/308:04:003
23102993226,4cyclictest41-21ksoftirqd/309:15:133
23102993226,4cyclictest41-21ksoftirqd/307:43:543
23101993227,3cyclictest33-21ksoftirqd/212:20:092
23101993227,3cyclictest33-21ksoftirqd/208:24:592
23101993226,4cyclictest33-21ksoftirqd/210:44:262
23101993226,4cyclictest33-21ksoftirqd/210:44:262
23101993226,4cyclictest33-21ksoftirqd/210:36:402
23101993226,4cyclictest33-21ksoftirqd/210:06:152
23101993226,4cyclictest33-21ksoftirqd/209:40:512
23101993226,4cyclictest33-21ksoftirqd/207:47:562
23100993226,4cyclictest25-21ksoftirqd/110:45:531
23100993226,4cyclictest25-21ksoftirqd/109:20:201
23100993226,4cyclictest25-21ksoftirqd/108:46:481
23100993226,4cyclictest25-21ksoftirqd/107:11:471
23099993227,3cyclictest9-21ksoftirqd/012:07:440
23099993227,3cyclictest9-21ksoftirqd/011:03:340
23099993226,4cyclictest9-21ksoftirqd/011:15:450
23099993226,4cyclictest9-21ksoftirqd/010:03:560
23099993226,4cyclictest9-21ksoftirqd/009:26:050
23099993226,4cyclictest9-21ksoftirqd/007:56:480
23102993126,3cyclictest41-21ksoftirqd/311:05:123
23102993126,3cyclictest41-21ksoftirqd/310:58:073
23102993126,3cyclictest41-21ksoftirqd/310:27:463
23102993126,3cyclictest41-21ksoftirqd/308:34:313
23102993126,3cyclictest41-21ksoftirqd/308:34:313
23102993126,3cyclictest41-21ksoftirqd/307:53:503
23102993125,4cyclictest41-21ksoftirqd/311:41:403
23102993125,4cyclictest41-21ksoftirqd/311:37:143
23102993125,4cyclictest41-21ksoftirqd/311:21:503
23102993125,4cyclictest41-21ksoftirqd/309:34:183
23101993126,3cyclictest33-21ksoftirqd/212:26:142
23101993126,3cyclictest33-21ksoftirqd/208:39:302
23101993126,3cyclictest33-21ksoftirqd/208:16:132
23101993125,4cyclictest33-21ksoftirqd/207:36:032
23100993126,3cyclictest25-21ksoftirqd/112:04:271
23100993126,3cyclictest25-21ksoftirqd/110:37:121
23100993126,3cyclictest25-21ksoftirqd/110:11:071
23100993126,3cyclictest25-21ksoftirqd/110:11:071
23100993126,3cyclictest25-21ksoftirqd/109:53:541
23100993125,4cyclictest25-21ksoftirqd/111:45:461
23100993125,4cyclictest25-21ksoftirqd/111:20:361
23100993125,4cyclictest25-21ksoftirqd/111:12:451
23100993125,4cyclictest25-21ksoftirqd/110:04:051
23100993125,4cyclictest25-21ksoftirqd/108:43:351
23100993125,4cyclictest25-21ksoftirqd/108:35:351
23100993125,4cyclictest25-21ksoftirqd/107:59:531
23100993125,4cyclictest25-21ksoftirqd/107:22:021
23100993124,5cyclictest25-21ksoftirqd/112:21:371
23099993126,3cyclictest9-21ksoftirqd/010:39:140
23099993126,3cyclictest9-21ksoftirqd/007:26:110
23099993125,4cyclictest9-21ksoftirqd/010:57:080
23099993125,4cyclictest9-21ksoftirqd/010:11:260
23099993125,4cyclictest9-21ksoftirqd/010:11:260
139391310,0ptp4l401ktimersoftd/308:45:323
1202423124,3sleep341-21ksoftirqd/309:00:223
23102993025,3cyclictest41-21ksoftirqd/312:17:273
23102993025,3cyclictest41-21ksoftirqd/309:28:013
23102993025,3cyclictest41-21ksoftirqd/309:22:583
23102993024,4cyclictest41-21ksoftirqd/310:14:223
23102993024,4cyclictest41-21ksoftirqd/310:14:223
23102993024,4cyclictest41-21ksoftirqd/309:38:243
23102993024,4cyclictest41-21ksoftirqd/308:59:043
23102993024,4cyclictest41-21ksoftirqd/307:24:053
23102993020,7cyclictest41-21ksoftirqd/309:40:243
2310199303,26cyclictest15791-21kworker/2:211:00:332
23101993025,3cyclictest33-21ksoftirqd/211:10:262
23101993025,3cyclictest33-21ksoftirqd/209:18:012
23101993025,3cyclictest33-21ksoftirqd/208:30:222
23101993025,3cyclictest33-21ksoftirqd/208:30:212
23101993025,3cyclictest33-21ksoftirqd/208:04:452
23101993024,4cyclictest33-21ksoftirqd/210:29:382
23101993024,4cyclictest33-21ksoftirqd/209:01:252
23101993024,4cyclictest33-21ksoftirqd/208:11:092
23100993026,3cyclictest25-21ksoftirqd/111:44:431
23100993025,3cyclictest25-21ksoftirqd/111:56:451
23100993025,3cyclictest25-21ksoftirqd/109:26:421
23100993024,4cyclictest25-21ksoftirqd/112:15:001
23099993025,3cyclictest9-21ksoftirqd/009:59:350
23099993025,3cyclictest9-21ksoftirqd/008:58:540
23099993025,3cyclictest9-21ksoftirqd/007:22:100
23099993024,4cyclictest9-21ksoftirqd/012:36:530
23099993024,4cyclictest9-21ksoftirqd/012:36:530
23099993024,4cyclictest9-21ksoftirqd/011:30:540
23099993024,4cyclictest9-21ksoftirqd/008:04:130
139391300,1ptp4l401ktimersoftd/311:13:183
139391300,0ptp4l401ktimersoftd/311:19:423
23102992924,3cyclictest41-21ksoftirqd/310:02:393
23102992924,3cyclictest41-21ksoftirqd/308:51:373
23102992923,4cyclictest41-21ksoftirqd/308:13:123
23101992924,3cyclictest33-21ksoftirqd/209:47:132
23101992924,3cyclictest33-21ksoftirqd/207:28:592
23101992924,3cyclictest33-21ksoftirqd/207:21:402
23101992923,4cyclictest33-21ksoftirqd/209:22:182
23100992924,3cyclictest25-21ksoftirqd/110:53:471
23099992924,3cyclictest9-21ksoftirqd/010:19:000
23099992924,3cyclictest9-21ksoftirqd/009:17:060
23099992924,3cyclictest9-21ksoftirqd/008:34:390
23099992924,3cyclictest9-21ksoftirqd/008:34:380
23099992924,3cyclictest9-21ksoftirqd/007:54:390
23099992924,3cyclictest9-21ksoftirqd/007:12:050
23099992923,4cyclictest9-21ksoftirqd/012:17:310
23099992923,4cyclictest9-21ksoftirqd/012:01:100
23099992923,4cyclictest9-21ksoftirqd/010:46:000
23099992923,4cyclictest9-21ksoftirqd/008:42:200
23099992923,4cyclictest9-21ksoftirqd/007:46:520
23099992922,4cyclictest9-21ksoftirqd/011:40:010
139391290,0ptp4l401ktimersoftd/310:09:373
139391290,0ptp4l401ktimersoftd/307:58:273
23101992823,3cyclictest33-21ksoftirqd/210:31:162
23101992823,3cyclictest33-21ksoftirqd/209:36:052
2310199282,25cyclictest4454-21kworker/2:010:13:532
2310199282,25cyclictest4454-21kworker/2:010:13:522
23101992822,4cyclictest33-21ksoftirqd/212:38:192
23101992822,4cyclictest33-21ksoftirqd/212:38:182
23101992822,4cyclictest33-21ksoftirqd/211:50:452
23101992822,4cyclictest33-21ksoftirqd/208:43:592
23101992822,4cyclictest33-21ksoftirqd/207:40:402
23101992822,3cyclictest33-21ksoftirqd/211:39:032
2310199282,16cyclictest26053-21kworker/2:012:01:402
23101992821,4cyclictest16993-21cron12:35:002
23100992823,3cyclictest25-21ksoftirqd/108:30:091
23100992823,3cyclictest25-21ksoftirqd/108:30:091
23100992821,4cyclictest25-21ksoftirqd/112:18:401
2309999284,4cyclictest22610-21cron09:25:000
23099992823,3cyclictest9-21ksoftirqd/010:33:210
23099992822,4cyclictest9-21ksoftirqd/010:05:290
23099992822,4cyclictest9-21ksoftirqd/008:54:080
23099992822,4cyclictest9-21ksoftirqd/007:35:090
23102992722,3cyclictest41-21ksoftirqd/312:30:053
23102992721,4cyclictest41-21ksoftirqd/311:31:013
23100992722,3cyclictest25-21ksoftirqd/111:35:261
23100992722,3cyclictest25-21ksoftirqd/108:59:581
23099992722,3cyclictest9-21ksoftirqd/009:35:120
23099992721,4cyclictest9-21ksoftirqd/009:42:150
23099992721,4cyclictest9-21ksoftirqd/009:31:550
23099992721,4cyclictest9-21ksoftirqd/008:18:050
139391270,9ptp4l0-21swapper/312:37:333
139391270,9ptp4l0-21swapper/312:37:333
23102992619,4cyclictest41-21ksoftirqd/307:46:033
23101992621,3cyclictest33-21ksoftirqd/208:46:172
2310199261,24cyclictest26053-21kworker/2:012:09:412
23100992620,4cyclictest25-21ksoftirqd/108:18:421
23099992621,3cyclictest9-21ksoftirqd/008:22:430
23099992620,4cyclictest9-21ksoftirqd/012:33:560
23099992620,4cyclictest9-21ksoftirqd/009:50:100
23099992620,4cyclictest9-21ksoftirqd/009:01:260
23099992620,4cyclictest9-21ksoftirqd/007:30:030
23099992620,4cyclictest9-21ksoftirqd/007:16:000
23102992517,5cyclictest41-21ksoftirqd/307:17:473
2310199254,11cyclictest3079-21kworker/2:107:31:242
23101992520,3cyclictest33-21ksoftirqd/210:57:362
23100992519,4cyclictest25-21ksoftirqd/111:04:591
23099992520,3cyclictest9-21ksoftirqd/011:54:260
23099992520,3cyclictest9-21ksoftirqd/011:08:110
139391250,0ptp4l401ktimersoftd/308:15:543
23101992419,3cyclictest33-21ksoftirqd/210:45:502
139391240,0ptp4l401ktimersoftd/308:40:243
23102992318,3cyclictest41-21ksoftirqd/312:00:193
23100992320,2cyclictest0-21swapper/108:06:351
23100992318,3cyclictest25-21ksoftirqd/111:54:591
23100992318,3cyclictest25-21ksoftirqd/107:37:281
23100992317,3cyclictest25-21ksoftirqd/109:30:131
23099992318,3cyclictest9-21ksoftirqd/011:48:470
23099992318,3cyclictest9-21ksoftirqd/010:44:280
23099992318,3cyclictest9-21ksoftirqd/010:44:280
23099992317,4cyclictest9-21ksoftirqd/011:59:180
23099992317,4cyclictest9-21ksoftirqd/008:29:050
23099992219,2cyclictest9-21ksoftirqd/011:40:250
23099992015,3cyclictest10848-21irqstats12:20:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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