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2026-04-13 - 16:05
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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 Mon Apr 13, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92212203169,22sleep00-21swapper/007:08:540
89602202168,23sleep30-21swapper/307:05:313
89592202168,23sleep20-21swapper/207:05:302
90772200166,23sleep10-21swapper/107:07:021
1337821660,3sleep3960899cyclictest10:30:263
565021570,6sleep3960899cyclictest10:15:223
936221470,3sleep0960599cyclictest08:15:000
44762730,2sleep30-21swapper/308:05:133
138491690,1ptp4l401ktimersoftd/309:04:553
228222610,3sleep20-21swapper/208:40:182
138491580,1ptp4l401ktimersoftd/309:50:143
9607995624,4cyclictest33-21ksoftirqd/207:55:012
138491540,1ptp4l391rcuc/311:11:453
138491540,1ptp4l391rcuc/311:11:453
931425034,11sleep20-21swapper/207:10:002
9607994937,4cyclictest33-21ksoftirqd/209:40:012
9607994633,3cyclictest33-21ksoftirqd/208:10:262
9607994623,3cyclictest33-21ksoftirqd/208:35:242
9607994617,4cyclictest33-21ksoftirqd/208:15:162
9607994518,4cyclictest33-21ksoftirqd/209:00:222
9607994439,2cyclictest33-21ksoftirqd/210:00:012
9607994414,3cyclictest33-21ksoftirqd/211:35:232
138491440,0ptp4l401ktimersoftd/312:04:583
138491440,0ptp4l401ktimersoftd/308:10:113
9607994315,7cyclictest33-21ksoftirqd/212:25:182
9606994312,30cyclictest4161-21kworker/1:108:53:041
138491430,0ptp4l401ktimersoftd/309:09:293
9607994237,3cyclictest33-21ksoftirqd/207:20:002
9607994230,9cyclictest33-21ksoftirqd/209:20:212
9607994136,3cyclictest33-21ksoftirqd/212:25:002
960799411,3cyclictest121rcu_preempt10:55:202
9607994112,4cyclictest33-21ksoftirqd/210:30:162
9607994111,4cyclictest33-21ksoftirqd/210:00:212
9606994118,22cyclictest9321-21kworker/1:009:30:441
138491410,1ptp4l0-21swapper/308:59:123
960799409,4cyclictest33-21ksoftirqd/212:10:252
960799409,4cyclictest33-21ksoftirqd/212:10:252
960799409,3cyclictest33-21ksoftirqd/212:10:012
9607994029,9cyclictest33-21ksoftirqd/207:55:272
9607994029,9cyclictest33-21ksoftirqd/207:35:252
9607994028,10cyclictest33-21ksoftirqd/208:45:182
9606994034,4cyclictest24283-21cron08:45:001
9606994032,5cyclictest19009-21cron10:45:001
9606994032,5cyclictest19009-21cron10:45:001
50798400,10rtkit-daemon579-21gmain08:03:130
9607993935,2cyclictest33-21ksoftirqd/211:20:012
9607993934,3cyclictest33-21ksoftirqd/211:15:012
9607993934,3cyclictest33-21ksoftirqd/211:15:012
9607993933,3cyclictest33-21ksoftirqd/209:50:012
9607993928,9cyclictest33-21ksoftirqd/208:05:272
960799392,6cyclictest33-21ksoftirqd/208:25:132
9607993913,6cyclictest33-21ksoftirqd/209:50:152
960699390,37cyclictest0-21swapper/112:27:041
9605993933,3cyclictest9-21ksoftirqd/007:20:000
9608993831,4cyclictest19011-21cron10:45:003
9608993831,4cyclictest19011-21cron10:45:003
960799388,3cyclictest33-21ksoftirqd/208:20:242
960799385,3cyclictest121rcu_preempt09:40:192
960799384,3cyclictest121rcu_preempt09:25:182
9607993834,3cyclictest33-21ksoftirqd/212:40:002
9607993832,3cyclictest33-21ksoftirqd/210:10:222
9607993832,3cyclictest33-21ksoftirqd/208:55:212
9607993832,3cyclictest33-21ksoftirqd/208:55:002
9607993827,9cyclictest33-21ksoftirqd/211:00:182
960799381,9cyclictest33-21ksoftirqd/210:20:002
9607993812,6cyclictest33-21ksoftirqd/210:20:152
9608993731,4cyclictest41-21ksoftirqd/308:28:313
9608993731,3cyclictest41-21ksoftirqd/312:20:013
960799378,3cyclictest33-21ksoftirqd/209:15:252
960799378,3cyclictest33-21ksoftirqd/209:15:252
960799377,7cyclictest33-21ksoftirqd/210:05:132
960799377,4cyclictest33-21ksoftirqd/211:25:012
9607993731,4cyclictest33-21ksoftirqd/212:04:402
9607993731,3cyclictest33-21ksoftirqd/212:15:132
9607993731,3cyclictest33-21ksoftirqd/208:30:162
960799372,5cyclictest33-21ksoftirqd/209:05:262
9605993732,3cyclictest9-21ksoftirqd/008:00:000
9608993631,3cyclictest41-21ksoftirqd/307:55:013
9608993630,4cyclictest41-21ksoftirqd/311:44:043
9608993630,4cyclictest41-21ksoftirqd/311:44:043
9608993630,3cyclictest41-21ksoftirqd/307:20:193
960799366,3cyclictest33-21ksoftirqd/211:40:172
960799366,3cyclictest33-21ksoftirqd/211:40:162
960799366,3cyclictest33-21ksoftirqd/210:30:002
9607993631,3cyclictest33-21ksoftirqd/208:00:132
9607993630,3cyclictest33-21ksoftirqd/209:35:012
9607993630,3cyclictest33-21ksoftirqd/207:20:132
9607993629,4cyclictest33-21ksoftirqd/207:28:212
9607993626,8cyclictest33-21ksoftirqd/207:45:272
9606993630,4cyclictest25-21ksoftirqd/111:11:121
9606993630,4cyclictest25-21ksoftirqd/111:11:121
960899357,26cyclictest29466-21cron08:55:013
9608993530,3cyclictest41-21ksoftirqd/310:45:203
9608993530,3cyclictest41-21ksoftirqd/308:05:003
9608993529,4cyclictest41-21ksoftirqd/312:10:433
9608993529,4cyclictest41-21ksoftirqd/312:10:433
9608993529,4cyclictest41-21ksoftirqd/309:21:513
9608993528,5cyclictest41-21ksoftirqd/309:42:083
9607993532,2cyclictest33-21ksoftirqd/211:50:142
9607993531,2cyclictest33-21ksoftirqd/209:10:122
9607993530,3cyclictest33-21ksoftirqd/212:30:022
9607993530,3cyclictest33-21ksoftirqd/210:50:002
9607993530,2cyclictest33-21ksoftirqd/210:35:262
9607993529,3cyclictest33-21ksoftirqd/210:40:162
9607993529,3cyclictest33-21ksoftirqd/210:40:162
9607993529,3cyclictest33-21ksoftirqd/207:30:172
9607993528,4cyclictest33-21ksoftirqd/211:55:122
9607993528,4cyclictest33-21ksoftirqd/210:53:492
9607993510,6cyclictest33-21ksoftirqd/211:30:162
9606993529,4cyclictest25-21ksoftirqd/112:33:171
9606993529,4cyclictest25-21ksoftirqd/112:13:501
9606993529,4cyclictest25-21ksoftirqd/112:13:501
9606993529,4cyclictest25-21ksoftirqd/112:05:521
9606993529,4cyclictest25-21ksoftirqd/111:45:311
9606993529,4cyclictest25-21ksoftirqd/111:37:531
9606993529,4cyclictest25-21ksoftirqd/110:54:281
9605993530,3cyclictest9-21ksoftirqd/010:34:590
9605993530,3cyclictest9-21ksoftirqd/009:25:000
9608993429,3cyclictest41-21ksoftirqd/307:25:183
9608993428,4cyclictest41-21ksoftirqd/312:24:123
9608993428,4cyclictest41-21ksoftirqd/311:45:493
9608993428,4cyclictest41-21ksoftirqd/311:01:233
9608993428,4cyclictest41-21ksoftirqd/309:59:103
9608993427,4cyclictest41-21ksoftirqd/307:49:443
960799342,9cyclictest33-21ksoftirqd/211:10:012
9607993429,3cyclictest33-21ksoftirqd/211:45:102
9607993419,6cyclictest33-21ksoftirqd/211:30:002
960799341,4cyclictest33-21ksoftirqd/207:40:132
9606993428,4cyclictest25-21ksoftirqd/111:08:511
9606993428,4cyclictest25-21ksoftirqd/110:28:351
9606993428,4cyclictest25-21ksoftirqd/110:04:211
9606993428,4cyclictest25-21ksoftirqd/109:05:111
9606993428,4cyclictest25-21ksoftirqd/107:50:341
9606993428,4cyclictest25-21ksoftirqd/107:41:361
9605993430,2cyclictest9-21ksoftirqd/011:20:010
9605993429,3cyclictest9-21ksoftirqd/011:42:330
9605993429,3cyclictest9-21ksoftirqd/011:42:320
9605993429,3cyclictest9-21ksoftirqd/009:34:590
9605993429,3cyclictest9-21ksoftirqd/008:40:240
9605993428,4cyclictest9-21ksoftirqd/011:09:430
9605993428,4cyclictest9-21ksoftirqd/008:38:590
9605993428,4cyclictest9-21ksoftirqd/008:32:420
9608993328,3cyclictest41-21ksoftirqd/312:10:003
9608993328,3cyclictest41-21ksoftirqd/311:15:103
9608993328,3cyclictest41-21ksoftirqd/310:20:113
9608993328,3cyclictest41-21ksoftirqd/307:55:193
9608993327,4cyclictest41-21ksoftirqd/311:50:423
9608993327,4cyclictest41-21ksoftirqd/311:22:533
9608993327,4cyclictest41-21ksoftirqd/309:32:183
9608993327,4cyclictest41-21ksoftirqd/309:29:213
9608993327,4cyclictest41-21ksoftirqd/308:41:353
9608993327,4cyclictest41-21ksoftirqd/307:41:343
9606993328,4cyclictest25-21ksoftirqd/108:13:441
9606993328,3cyclictest25-21ksoftirqd/111:50:591
9606993328,3cyclictest25-21ksoftirqd/107:17:281
9606993327,4cyclictest25-21ksoftirqd/110:48:301
9606993327,4cyclictest25-21ksoftirqd/108:56:171
9606993327,4cyclictest25-21ksoftirqd/108:15:581
9606993327,4cyclictest25-21ksoftirqd/107:26:351
9605993328,3cyclictest9-21ksoftirqd/012:17:510
9605993328,3cyclictest9-21ksoftirqd/007:25:340
9605993327,4cyclictest9-21ksoftirqd/011:53:190
9605993327,4cyclictest9-21ksoftirqd/009:57:180
9605993327,4cyclictest9-21ksoftirqd/007:32:400
9608993228,3cyclictest41-21ksoftirqd/307:10:183
9608993228,2cyclictest41-21ksoftirqd/309:10:183
9608993227,3cyclictest41-21ksoftirqd/310:55:193
9608993227,3cyclictest41-21ksoftirqd/310:05:533
9608993227,3cyclictest41-21ksoftirqd/308:35:253
9608993227,3cyclictest41-21ksoftirqd/308:33:453
9608993227,3cyclictest41-21ksoftirqd/308:20:133
9608993227,3cyclictest41-21ksoftirqd/307:39:043
9608993226,4cyclictest41-21ksoftirqd/311:38:593
9608993226,4cyclictest41-21ksoftirqd/310:29:143
9608993226,4cyclictest41-21ksoftirqd/308:48:573
9608993226,4cyclictest41-21ksoftirqd/308:16:043
9608993225,5cyclictest41-21ksoftirqd/309:47:133
9608993225,4cyclictest41-21ksoftirqd/311:29:283
9608993224,6cyclictest41-21ksoftirqd/312:00:003
9606993228,3cyclictest25-21ksoftirqd/112:16:571
9606993226,4cyclictest25-21ksoftirqd/109:57:471
9606993226,4cyclictest25-21ksoftirqd/109:54:251
9606993226,4cyclictest25-21ksoftirqd/109:10:101
9606993226,4cyclictest25-21ksoftirqd/107:24:231
9605993228,2cyclictest9-21ksoftirqd/012:30:130
9605993228,2cyclictest9-21ksoftirqd/011:55:220
9605993227,3cyclictest9-21ksoftirqd/009:27:170
9605993227,3cyclictest9-21ksoftirqd/008:55:020
9605993226,4cyclictest9-21ksoftirqd/012:35:520
9605993226,4cyclictest9-21ksoftirqd/012:01:170
9605993226,4cyclictest9-21ksoftirqd/010:02:440
9605993226,4cyclictest9-21ksoftirqd/009:10:050
9605993226,4cyclictest9-21ksoftirqd/009:03:510
9605993226,4cyclictest9-21ksoftirqd/007:10:540
9608993126,3cyclictest41-21ksoftirqd/307:30:183
9608993125,4cyclictest41-21ksoftirqd/309:15:453
9608993125,4cyclictest41-21ksoftirqd/309:15:443
9608993124,4cyclictest41-21ksoftirqd/310:37:453
9606993126,3cyclictest25-21ksoftirqd/111:25:471
9606993126,3cyclictest25-21ksoftirqd/111:16:491
9606993125,4cyclictest25-21ksoftirqd/111:40:131
9606993125,4cyclictest25-21ksoftirqd/111:40:131
9606993125,4cyclictest25-21ksoftirqd/109:45:011
9606993125,4cyclictest25-21ksoftirqd/109:23:331
9606993125,4cyclictest25-21ksoftirqd/108:07:431
9605993126,3cyclictest9-21ksoftirqd/009:40:050
9605993126,3cyclictest9-21ksoftirqd/008:09:070
9605993126,3cyclictest30555-21mailstats12:10:240
9605993126,3cyclictest30555-21mailstats12:10:240
9605993125,4cyclictest9-21ksoftirqd/009:05:110
9605993124,5cyclictest9-21ksoftirqd/007:35:370
9608993025,3cyclictest41-21ksoftirqd/312:30:013
9608993025,3cyclictest41-21ksoftirqd/310:01:363
9608993025,3cyclictest41-21ksoftirqd/307:17:443
9608993024,4cyclictest41-21ksoftirqd/312:32:593
9606993025,3cyclictest25-21ksoftirqd/109:48:101
9606993025,3cyclictest25-21ksoftirqd/109:04:391
9606993025,3cyclictest25-21ksoftirqd/108:39:351
9606993025,3cyclictest25-21ksoftirqd/107:57:241
9606993024,4cyclictest25-21ksoftirqd/109:39:341
9606993024,4cyclictest25-21ksoftirqd/108:49:191
9606993024,4cyclictest25-21ksoftirqd/108:02:571
9606993024,4cyclictest25-21ksoftirqd/107:34:301
9606993024,4cyclictest25-21ksoftirqd/107:14:521
9605993025,3cyclictest9-21ksoftirqd/010:40:190
9605993025,3cyclictest9-21ksoftirqd/010:40:190
9605993025,3cyclictest9-21ksoftirqd/010:15:080
9605993025,3cyclictest9-21ksoftirqd/008:23:460
9605993025,3cyclictest9-21ksoftirqd/008:20:010
9605993024,4cyclictest9-21ksoftirqd/012:06:390
9605993024,4cyclictest9-21ksoftirqd/010:22:260
9605993024,4cyclictest9-21ksoftirqd/010:06:160
9605993024,4cyclictest9-21ksoftirqd/009:37:490
9605993024,4cyclictest9-21ksoftirqd/008:48:100
138491300,0ptp4l401ktimersoftd/311:06:063
9608992924,3cyclictest41-21ksoftirqd/311:30:193
9606992924,3cyclictest25106-21uname12:00:191
9606992923,4cyclictest25-21ksoftirqd/108:21:431
9606992923,4cyclictest25-21ksoftirqd/107:48:261
9605992924,3cyclictest9-21ksoftirqd/011:37:520
9605992924,3cyclictest9-21ksoftirqd/010:48:230
9605992924,3cyclictest9-21ksoftirqd/010:28:430
9605992924,3cyclictest9-21ksoftirqd/008:53:440
9605992923,4cyclictest9-21ksoftirqd/010:50:330
9605992923,4cyclictest9-21ksoftirqd/010:37:380
9605992923,4cyclictest9-21ksoftirqd/009:15:020
9605992923,4cyclictest9-21ksoftirqd/009:15:020
138491290,0ptp4l401ktimersoftd/310:54:013
9608992823,3cyclictest41-21ksoftirqd/309:37:323
9606992823,3cyclictest25-21ksoftirqd/111:57:081
9606992823,3cyclictest25-21ksoftirqd/110:35:541
9606992823,3cyclictest25-21ksoftirqd/110:21:131
9606992823,3cyclictest25-21ksoftirqd/109:19:081
9606992823,3cyclictest25-21ksoftirqd/109:19:071
9606992823,3cyclictest25-21ksoftirqd/107:35:141
9606992822,4cyclictest25-21ksoftirqd/111:31:141
9606992822,4cyclictest25-21ksoftirqd/111:24:161
9606992822,4cyclictest25-21ksoftirqd/110:07:021
9605992823,3cyclictest9-21ksoftirqd/011:30:460
9605992823,3cyclictest9-21ksoftirqd/011:24:080
9605992823,3cyclictest9-21ksoftirqd/010:10:260
9605992823,3cyclictest9-21ksoftirqd/007:45:110
9605992823,3cyclictest9-21ksoftirqd/007:41:350
9605992823,3cyclictest9-21ksoftirqd/007:22:500
138491280,0ptp4l401ktimersoftd/310:12:103
9606992722,3cyclictest25-21ksoftirqd/112:35:581
9606992722,3cyclictest25-21ksoftirqd/112:22:581
9605992722,3cyclictest9-21ksoftirqd/011:27:450
9605992722,3cyclictest9-21ksoftirqd/010:58:080
9605992722,3cyclictest9-21ksoftirqd/009:52:590
9605992721,4cyclictest9-21ksoftirqd/011:46:050
138491270,0ptp4l401ktimersoftd/312:38:353
9606992621,3cyclictest25-21ksoftirqd/110:59:551
9606992621,3cyclictest25-21ksoftirqd/110:18:341
9606992621,3cyclictest25-21ksoftirqd/109:25:261
9605992621,3cyclictest9-21ksoftirqd/007:50:130
9605992620,4cyclictest9-21ksoftirqd/012:28:580
9605992620,4cyclictest9-21ksoftirqd/009:47:430
9605992520,3cyclictest9-21ksoftirqd/011:00:180
9605992519,4cyclictest9-21ksoftirqd/011:11:240
9605992519,4cyclictest9-21ksoftirqd/011:11:240
9605992519,4cyclictest9-21ksoftirqd/008:27:240
9606992419,3cyclictest25-21ksoftirqd/110:32:451
9606992418,4cyclictest25-21ksoftirqd/108:33:511
9606992418,4cyclictest25-21ksoftirqd/108:26:291
9606992318,3cyclictest25-21ksoftirqd/111:02:521
9606992317,4cyclictest25-21ksoftirqd/110:12:561
9605992318,3cyclictest9-21ksoftirqd/012:21:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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