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2026-01-08 - 16:01
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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 Thu Jan 08, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158042201169,21sleep20-21swapper/207:10:002
157892198166,21sleep10-21swapper/107:09:501
138591197165,21phc2sys0-21swapper/307:08:033
135712194161,22sleep00-21swapper/007:05:030
148952600,2sleep20-21swapper/209:20:162
70992550,1sleep20-21swapper/212:25:262
138491450,1ptp4l401ktimersoftd/310:56:133
16099994230,10cyclictest33-21ksoftirqd/208:00:122
138491420,0ptp4l401ktimersoftd/310:46:123
138491420,0ptp4l401ktimersoftd/309:08:533
138491420,0ptp4l401ktimersoftd/308:19:003
138491420,0ptp4l401ktimersoftd/307:55:233
138491410,1ptp4l401ktimersoftd/310:28:353
138491410,0ptp4l401ktimersoftd/310:36:243
138491410,0ptp4l401ktimersoftd/308:45:003
138491410,0ptp4l401ktimersoftd/308:00:283
50798390,6rtkit-daemon0-21swapper/112:34:481
50798390,6rtkit-daemon0-21swapper/107:33:371
138491390,1ptp4l401ktimersoftd/308:55:123
50798380,6rtkit-daemon0-21swapper/109:51:361
16098993831,5cyclictest25-21ksoftirqd/109:39:161
138491380,0ptp4l401ktimersoftd/311:45:243
16100993731,4cyclictest41-21ksoftirqd/312:31:073
16099993731,4cyclictest33-21ksoftirqd/211:13:492
16098993731,4cyclictest25-21ksoftirqd/112:15:461
16100993630,4cyclictest41-21ksoftirqd/311:16:473
16099993631,3cyclictest33-21ksoftirqd/210:45:082
16099993630,4cyclictest33-21ksoftirqd/210:31:002
16099993630,4cyclictest33-21ksoftirqd/210:06:132
16099993630,4cyclictest33-21ksoftirqd/210:02:562
16099993630,4cyclictest33-21ksoftirqd/208:50:512
16099993630,4cyclictest33-21ksoftirqd/208:48:432
16099993629,5cyclictest33-21ksoftirqd/210:26:082
16098993630,4cyclictest25-21ksoftirqd/107:55:301
16097993629,4cyclictest9-21ksoftirqd/009:25:470
138491360,0ptp4l401ktimersoftd/310:32:133
16100993530,3cyclictest41-21ksoftirqd/308:50:323
16100993529,4cyclictest41-21ksoftirqd/309:51:183
16100993529,4cyclictest41-21ksoftirqd/309:23:263
16099993530,3cyclictest33-21ksoftirqd/211:54:492
16099993530,3cyclictest33-21ksoftirqd/209:29:262
16099993530,3cyclictest33-21ksoftirqd/208:55:372
16099993529,4cyclictest33-21ksoftirqd/212:23:532
16099993529,4cyclictest33-21ksoftirqd/209:58:512
16099993529,4cyclictest33-21ksoftirqd/208:41:282
16099993517,16cyclictest18547-21ls08:20:242
16098993530,3cyclictest25-21ksoftirqd/110:03:271
16098993530,2cyclictest25-21ksoftirqd/112:15:011
16098993529,4cyclictest25-21ksoftirqd/111:55:281
16098993529,4cyclictest25-21ksoftirqd/111:28:321
16098993529,4cyclictest25-21ksoftirqd/110:51:331
16098993529,4cyclictest25-21ksoftirqd/107:42:581
1609799353,29cyclictest24103-21cron08:35:000
16097993529,4cyclictest9-21ksoftirqd/011:52:020
16097993529,4cyclictest9-21ksoftirqd/009:51:070
16097993529,4cyclictest9-21ksoftirqd/009:10:550
16097993529,4cyclictest9-21ksoftirqd/007:33:390
138491350,0ptp4l401ktimersoftd/310:00:103
50798340,3rtkit-daemon8700-21users09:05:271
16100993429,3cyclictest41-21ksoftirqd/310:13:133
16100993428,4cyclictest41-21ksoftirqd/309:36:133
16100993428,4cyclictest41-21ksoftirqd/309:03:483
16100993428,4cyclictest41-21ksoftirqd/308:38:173
16100993428,4cyclictest41-21ksoftirqd/307:52:393
16099993429,3cyclictest33-21ksoftirqd/210:18:222
16099993428,4cyclictest33-21ksoftirqd/211:07:032
16099993428,4cyclictest33-21ksoftirqd/210:57:362
16099993428,4cyclictest33-21ksoftirqd/209:33:152
16099993428,4cyclictest33-21ksoftirqd/208:38:152
16099993428,4cyclictest33-21ksoftirqd/208:14:002
16099993428,4cyclictest33-21ksoftirqd/207:25:382
16099993428,4cyclictest33-21ksoftirqd/207:11:232
1609899345,28cyclictest0-21swapper/108:20:331
16098993428,4cyclictest25-21ksoftirqd/112:36:431
16098993428,4cyclictest25-21ksoftirqd/111:18:531
16098993428,4cyclictest25-21ksoftirqd/110:59:161
16098993428,4cyclictest25-21ksoftirqd/110:29:591
16098993428,4cyclictest25-21ksoftirqd/108:43:001
16098993427,5cyclictest25-21ksoftirqd/109:58:541
16098993427,4cyclictest25-21ksoftirqd/112:28:131
16097993429,3cyclictest9-21ksoftirqd/011:11:260
16097993429,3cyclictest9-21ksoftirqd/007:55:410
16097993428,4cyclictest9-21ksoftirqd/012:36:110
16097993428,4cyclictest9-21ksoftirqd/012:07:050
16097993428,4cyclictest9-21ksoftirqd/011:41:110
16097993428,4cyclictest9-21ksoftirqd/011:20:090
16097993428,4cyclictest9-21ksoftirqd/010:33:270
16097993428,4cyclictest9-21ksoftirqd/009:56:000
16097993428,4cyclictest9-21ksoftirqd/008:41:510
138491340,0ptp4l401ktimersoftd/309:16:353
134991340,5getstats1610099cyclictest07:28:303
16100993328,3cyclictest41-21ksoftirqd/312:38:473
16100993328,3cyclictest41-21ksoftirqd/312:00:003
16100993327,4cyclictest41-21ksoftirqd/312:04:083
16100993327,4cyclictest41-21ksoftirqd/311:24:013
16099993328,3cyclictest33-21ksoftirqd/209:16:552
16099993327,4cyclictest33-21ksoftirqd/211:40:332
16099993327,4cyclictest33-21ksoftirqd/211:15:372
16099993327,4cyclictest33-21ksoftirqd/209:50:492
16099993327,4cyclictest33-21ksoftirqd/209:12:502
16099993327,4cyclictest33-21ksoftirqd/207:15:072
16098993327,4cyclictest25-21ksoftirqd/111:36:251
16098993327,4cyclictest25-21ksoftirqd/111:22:541
16098993327,4cyclictest25-21ksoftirqd/111:07:051
16098993327,4cyclictest25-21ksoftirqd/110:17:391
16098993327,4cyclictest25-21ksoftirqd/110:13:581
16098993327,4cyclictest25-21ksoftirqd/108:39:241
16098993326,4cyclictest25-21ksoftirqd/107:27:141
16098993312,20cyclictest0-21swapper/107:48:131
16097993328,3cyclictest9-21ksoftirqd/011:04:430
16097993328,3cyclictest9-21ksoftirqd/011:04:430
16097993327,4cyclictest9-21ksoftirqd/011:59:040
16097993327,4cyclictest9-21ksoftirqd/011:45:280
16097993327,4cyclictest9-21ksoftirqd/011:34:530
16097993327,4cyclictest9-21ksoftirqd/011:19:320
16097993327,4cyclictest9-21ksoftirqd/010:58:340
16097993327,4cyclictest9-21ksoftirqd/010:22:360
16097993327,4cyclictest9-21ksoftirqd/010:18:550
16097993327,4cyclictest9-21ksoftirqd/010:00:460
16097993327,4cyclictest9-21ksoftirqd/008:38:050
16097993327,4cyclictest9-21ksoftirqd/008:03:070
16097993327,4cyclictest9-21ksoftirqd/007:14:580
16097993326,4cyclictest9-21ksoftirqd/009:34:100
16100993227,3cyclictest41-21ksoftirqd/312:25:113
16100993227,3cyclictest41-21ksoftirqd/311:41:153
16100993227,3cyclictest41-21ksoftirqd/308:28:533
16100993226,4cyclictest41-21ksoftirqd/309:10:103
16100993226,4cyclictest41-21ksoftirqd/308:49:443
16100993225,5cyclictest41-21ksoftirqd/310:06:303
16099993227,3cyclictest33-21ksoftirqd/211:55:112
16099993226,4cyclictest33-21ksoftirqd/212:15:012
16099993226,4cyclictest33-21ksoftirqd/211:46:462
16099993226,4cyclictest33-21ksoftirqd/211:25:362
16099993226,4cyclictest33-21ksoftirqd/210:42:472
1609899324,27cyclictest0-21swapper/108:25:431
16098993226,4cyclictest25-21ksoftirqd/110:22:171
16098993226,4cyclictest25-21ksoftirqd/108:59:411
16097993227,3cyclictest9-21ksoftirqd/009:44:210
16097993226,4cyclictest9-21ksoftirqd/012:25:080
16097993226,4cyclictest9-21ksoftirqd/011:26:100
16097993226,4cyclictest9-21ksoftirqd/009:35:420
16097993226,4cyclictest9-21ksoftirqd/008:20:320
16097993226,4cyclictest9-21ksoftirqd/008:07:460
16097993226,4cyclictest9-21ksoftirqd/007:45:500
16097993226,4cyclictest9-21ksoftirqd/007:40:080
16097993224,3cyclictest9-21ksoftirqd/009:04:550
138491320,0ptp4l401ktimersoftd/311:32:283
138491320,0ptp4l401ktimersoftd/310:23:203
138491320,0ptp4l401ktimersoftd/307:47:343
138491320,0ptp4l401ktimersoftd/307:11:423
16100993126,3cyclictest41-21ksoftirqd/311:35:113
16100993126,3cyclictest41-21ksoftirqd/308:32:193
16100993125,4cyclictest41-21ksoftirqd/309:33:063
16100993125,4cyclictest41-21ksoftirqd/307:32:023
16099993126,3cyclictest33-21ksoftirqd/211:00:532
16099993126,3cyclictest33-21ksoftirqd/211:00:532
16099993125,4cyclictest33-21ksoftirqd/212:38:252
16099993125,4cyclictest33-21ksoftirqd/209:05:472
16099993125,4cyclictest33-21ksoftirqd/208:19:262
16099993125,4cyclictest33-21ksoftirqd/208:07:482
16099993116,7cyclictest33-21ksoftirqd/209:00:192
16098993126,3cyclictest25-21ksoftirqd/112:21:521
16098993126,3cyclictest25-21ksoftirqd/107:37:501
16098993125,4cyclictest25-21ksoftirqd/111:14:441
16098993125,4cyclictest25-21ksoftirqd/109:24:311
16098993125,4cyclictest25-21ksoftirqd/108:14:561
16098993125,4cyclictest25-21ksoftirqd/108:09:501
16097993126,3cyclictest9-21ksoftirqd/012:20:110
16097993126,3cyclictest9-21ksoftirqd/010:46:460
16097993126,3cyclictest9-21ksoftirqd/009:07:550
16097993125,4cyclictest9-21ksoftirqd/010:42:180
16097993125,4cyclictest9-21ksoftirqd/010:37:360
16097993125,4cyclictest9-21ksoftirqd/010:11:570
16097993125,4cyclictest9-21ksoftirqd/008:59:320
16097993125,4cyclictest9-21ksoftirqd/007:15:380
138491310,0ptp4l401ktimersoftd/312:10:163
138491310,0ptp4l401ktimersoftd/311:01:273
138491310,0ptp4l401ktimersoftd/311:01:263
16100993024,4cyclictest41-21ksoftirqd/310:44:533
16100993024,4cyclictest41-21ksoftirqd/310:16:013
1609999303,26cyclictest0-21swapper/208:25:232
16099993025,3cyclictest33-21ksoftirqd/212:31:202
16099993024,4cyclictest33-21ksoftirqd/207:36:012
16099993024,3cyclictest33-21ksoftirqd/208:31:482
16098993025,3cyclictest25-21ksoftirqd/110:05:111
16098993025,3cyclictest25-21ksoftirqd/107:52:251
16098993024,4cyclictest25-21ksoftirqd/111:46:171
16098993024,4cyclictest25-21ksoftirqd/110:30:071
16098993024,4cyclictest25-21ksoftirqd/109:16:101
16098993024,4cyclictest25-21ksoftirqd/108:30:321
16098993024,3cyclictest25-21ksoftirqd/111:33:211
16098993023,5cyclictest25-21ksoftirqd/109:34:121
16097993025,3cyclictest9-21ksoftirqd/011:38:380
16097993025,3cyclictest9-21ksoftirqd/009:15:000
16097993025,3cyclictest9-21ksoftirqd/008:52:220
16097993024,4cyclictest9-21ksoftirqd/012:03:050
16097993024,4cyclictest9-21ksoftirqd/007:53:480
16097993024,4cyclictest9-21ksoftirqd/007:36:110
16097993024,4cyclictest9-21ksoftirqd/007:23:280
138491300,0ptp4l401ktimersoftd/311:10:263
138491300,0ptp4l401ktimersoftd/311:07:573
138491300,0ptp4l401ktimersoftd/309:44:033
138491300,0ptp4l401ktimersoftd/307:37:053
138491300,0ptp4l401ktimersoftd/307:16:003
16100992924,3cyclictest41-21ksoftirqd/307:22:563
16100992923,4cyclictest41-21ksoftirqd/312:08:583
16100992923,4cyclictest41-21ksoftirqd/311:27:303
16099992924,3cyclictest33-21ksoftirqd/212:07:582
16099992924,3cyclictest33-21ksoftirqd/210:24:062
16099992924,3cyclictest33-21ksoftirqd/209:38:372
16099992923,4cyclictest33-21ksoftirqd/210:10:382
16099992923,4cyclictest33-21ksoftirqd/209:42:102
16099992922,5cyclictest33-21ksoftirqd/212:17:472
16099992916,12cyclictest0-21swapper/207:40:342
16098992923,4cyclictest25-21ksoftirqd/112:06:511
16098992922,4cyclictest25-21ksoftirqd/108:03:161
16097992924,3cyclictest9-21ksoftirqd/010:28:090
138491290,10ptp4l0-21swapper/308:05:153
16100992823,3cyclictest41-21ksoftirqd/308:15:003
16100992822,4cyclictest41-21ksoftirqd/310:51:473
16100992822,4cyclictest41-21ksoftirqd/308:21:073
16099992822,4cyclictest33-21ksoftirqd/207:59:402
16099992822,4cyclictest33-21ksoftirqd/207:46:202
16098992823,3cyclictest25-21ksoftirqd/112:01:341
16098992823,3cyclictest25-21ksoftirqd/111:40:021
16098992823,3cyclictest25-21ksoftirqd/110:46:561
16098992822,4cyclictest25-21ksoftirqd/111:51:431
16098992822,3cyclictest25-21ksoftirqd/108:50:111
16098992822,3cyclictest25-21ksoftirqd/108:48:101
16098992821,4cyclictest25-21ksoftirqd/109:47:471
16097992823,3cyclictest9-21ksoftirqd/012:30:290
16097992823,3cyclictest9-21ksoftirqd/011:07:370
138491280,0ptp4l401ktimersoftd/309:27:123
16100992722,3cyclictest41-21ksoftirqd/312:23:533
16100992721,4cyclictest41-21ksoftirqd/312:18:253
16099992722,3cyclictest33-21ksoftirqd/211:22:472
16099992722,3cyclictest33-21ksoftirqd/210:51:002
16098992721,4cyclictest25-21ksoftirqd/111:03:171
16098992721,4cyclictest25-21ksoftirqd/111:03:171
16098992721,4cyclictest25-21ksoftirqd/109:26:021
16098992721,4cyclictest25-21ksoftirqd/109:01:011
16098992721,4cyclictest25-21ksoftirqd/107:15:181
16097992722,3cyclictest9-21ksoftirqd/010:50:590
16097992722,3cyclictest9-21ksoftirqd/009:45:110
16097992722,3cyclictest9-21ksoftirqd/008:10:080
16097992722,3cyclictest9-21ksoftirqd/007:28:250
16097992721,4cyclictest9-21ksoftirqd/008:25:300
138491270,0ptp4l401ktimersoftd/311:52:083
16100992622,3cyclictest41-21ksoftirqd/309:55:513
16100992621,3cyclictest41-21ksoftirqd/307:40:103
16099992621,3cyclictest33-21ksoftirqd/211:31:322
16099992621,3cyclictest33-21ksoftirqd/210:37:502
16099992620,4cyclictest33-21ksoftirqd/209:45:512
16099992619,5cyclictest33-21ksoftirqd/207:22:372
16098992621,3cyclictest25-21ksoftirqd/110:40:091
16098992620,4cyclictest25-21ksoftirqd/109:43:211
16098992620,4cyclictest25-21ksoftirqd/108:15:191
16097992620,4cyclictest9-21ksoftirqd/012:15:450
16098992519,4cyclictest25-21ksoftirqd/110:37:411
16097992520,3cyclictest9-21ksoftirqd/010:08:280
16097992519,4cyclictest9-21ksoftirqd/009:20:540
16099992419,3cyclictest33-21ksoftirqd/211:35:502
16099992419,3cyclictest33-21ksoftirqd/207:54:252
16099992418,4cyclictest33-21ksoftirqd/207:34:412
16098992418,4cyclictest25-21ksoftirqd/107:11:171
16097992419,3cyclictest9-21ksoftirqd/012:12:110
16097992419,3cyclictest9-21ksoftirqd/008:18:040
138491240,0ptp4l401ktimersoftd/309:45:113
16097992317,4cyclictest9-21ksoftirqd/008:45:360
16099992217,3cyclictest33-21ksoftirqd/212:01:102
16098992216,4cyclictest25-21ksoftirqd/109:13:211
16098992216,4cyclictest25-21ksoftirqd/107:20:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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