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2026-09-18 - 10:16
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Fri Sep 18, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94232221154,22sleep10-21swapper/119:09:541
139491207172,23phc2sys0-21swapper/319:06:463
93992203170,22sleep00-21swapper/019:09:370
93092203170,22sleep20-21swapper/219:08:262
2410521410,3sleep3986099cyclictest00:07:023
139391730,0ptp4l391rcuc/323:35:243
12632700,2sleep00-21swapper/023:20:170
318122620,1sleep00-21swapper/022:10:130
118392620,4sleep311827-21turbostat21:30:003
9860995828,7cyclictest41-21ksoftirqd/323:55:013
9860995822,7cyclictest41-21ksoftirqd/323:45:223
986099574,5cyclictest0-21swapper/323:31:523
9860995729,3cyclictest41-21ksoftirqd/300:10:283
9860995728,7cyclictest41-21ksoftirqd/321:40:273
9860995728,7cyclictest41-21ksoftirqd/300:35:273
9860995722,11cyclictest41-21ksoftirqd/320:00:283
9860995721,7cyclictest41-21ksoftirqd/319:30:173
9860995525,10cyclictest41-21ksoftirqd/322:50:003
9860995521,9cyclictest41-21ksoftirqd/322:15:233
9860995429,7cyclictest41-21ksoftirqd/319:55:153
9860995426,8cyclictest41-21ksoftirqd/323:23:513
9860995422,7cyclictest41-21ksoftirqd/321:50:153
113412540,4sleep011344-21latency_hist22:35:000
986099536,8cyclictest41-21ksoftirqd/321:45:153
986099534,9cyclictest41-21ksoftirqd/319:20:163
9860995327,8cyclictest41-21ksoftirqd/320:10:233
9860995324,9cyclictest41-21ksoftirqd/322:25:173
9860995319,6cyclictest41-21ksoftirqd/300:32:403
9860995224,7cyclictest41-21ksoftirqd/323:15:143
9860995220,7cyclictest41-21ksoftirqd/322:40:263
9860995122,8cyclictest41-21ksoftirqd/321:05:253
986099506,9cyclictest41-21ksoftirqd/321:10:193
986099506,7cyclictest41-21ksoftirqd/319:10:193
986099506,6cyclictest41-21ksoftirqd/319:25:263
986099505,4cyclictest41-21ksoftirqd/319:55:003
986099504,7cyclictest41-21ksoftirqd/321:15:133
9860995020,10cyclictest41-21ksoftirqd/320:29:583
9860995019,7cyclictest41-21ksoftirqd/322:30:233
9860995017,8cyclictest41-21ksoftirqd/321:30:263
9860995017,11cyclictest41-21ksoftirqd/323:25:233
87032500,2sleep10-21swapper/120:15:001
986099496,7cyclictest41-21ksoftirqd/321:00:263
986099496,4cyclictest41-21ksoftirqd/323:10:013
986099496,4cyclictest41-21ksoftirqd/320:40:013
986099495,9cyclictest18645-21gpgv22:50:003
986099495,8cyclictest41-21ksoftirqd/322:00:163
986099495,4cyclictest9952-21phc2sys-jitter20:15:233
986099495,4cyclictest9952-21phc2sys-jitter20:15:233
986099494,9cyclictest41-21ksoftirqd/320:45:143
986099494,7cyclictest41-21ksoftirqd/322:10:163
986099493,8cyclictest41-21ksoftirqd/323:00:003
986099493,7cyclictest41-21ksoftirqd/322:20:013
986099493,7cyclictest41-21ksoftirqd/322:00:013
9860994919,6cyclictest41-21ksoftirqd/323:13:083
9860994918,7cyclictest41-21ksoftirqd/320:20:223
986099491,6cyclictest41-21ksoftirqd/323:40:143
134491490,1getstats0-21swapper/300:25:493
986099486,4cyclictest41-21ksoftirqd/319:15:183
986099485,8cyclictest41-21ksoftirqd/300:15:233
986099485,7cyclictest41-21ksoftirqd/323:00:183
986099485,7cyclictest41-21ksoftirqd/322:35:183
9860994821,9cyclictest41-21ksoftirqd/319:40:183
9860994817,7cyclictest41-21ksoftirqd/320:40:233
985799480,45cyclictest19584-21awk00:00:010
986099476,9cyclictest41-21ksoftirqd/319:45:213
986099475,8cyclictest41-21ksoftirqd/321:25:003
986099475,7cyclictest41-21ksoftirqd/321:40:013
986099475,10cyclictest41-21ksoftirqd/320:50:233
986099474,7cyclictest41-21ksoftirqd/320:55:133
986099474,6cyclictest41-21ksoftirqd/319:35:123
9860994717,10cyclictest41-21ksoftirqd/323:55:253
986099463,6cyclictest41-21ksoftirqd/320:05:233
9860994618,4cyclictest41-21ksoftirqd/322:05:133
9860994617,4cyclictest41-21ksoftirqd/300:00:483
986099454,7cyclictest41-21ksoftirqd/300:20:153
9859994540,3cyclictest5249-21cron23:29:592
986099425,8cyclictest41-21ksoftirqd/320:32:253
57898420,8rtkit-daemon0-21swapper/200:28:452
9858994126,5cyclictest25-21ksoftirqd/123:51:041
9858993934,3cyclictest21579-21sh21:50:001
9859993831,5cyclictest33-21ksoftirqd/222:30:002
9859993825,11cyclictest33-21ksoftirqd/200:00:012
9858993832,3cyclictest21253-21mailstats00:00:301
9859993732,3cyclictest33-21ksoftirqd/220:55:002
9859993731,4cyclictest33-21ksoftirqd/221:30:392
9859993731,4cyclictest33-21ksoftirqd/219:51:592
9858993732,3cyclictest25-21ksoftirqd/123:50:001
9858993731,4cyclictest25-21ksoftirqd/121:02:541
9857993732,3cyclictest29141-21kworker/0:000:30:120
985799371,5cyclictest0-21swapper/023:25:160
985799371,3cyclictest121rcu_preempt20:55:160
9859993632,2cyclictest33-21ksoftirqd/200:20:002
9858993631,3cyclictest25-21ksoftirqd/122:30:001
9858993630,4cyclictest25-21ksoftirqd/123:34:511
9858993630,4cyclictest25-21ksoftirqd/123:11:441
9858993630,4cyclictest25-21ksoftirqd/123:00:051
9858993630,4cyclictest25-21ksoftirqd/121:38:411
9857993631,3cyclictest9-21ksoftirqd/019:20:010
9857993630,3cyclictest9-21ksoftirqd/020:05:000
9859993530,3cyclictest33-21ksoftirqd/223:47:312
9859993529,4cyclictest33-21ksoftirqd/223:14:062
9859993529,4cyclictest33-21ksoftirqd/222:42:242
9859993529,4cyclictest33-21ksoftirqd/221:20:042
9859993529,4cyclictest33-21ksoftirqd/200:21:592
9858993530,3cyclictest25-21ksoftirqd/123:25:131
9858993530,3cyclictest25-21ksoftirqd/122:15:081
9858993530,3cyclictest25-21ksoftirqd/121:55:001
9858993530,3cyclictest25-21ksoftirqd/121:30:001
9858993530,3cyclictest25-21ksoftirqd/120:38:201
9858993530,3cyclictest25-21ksoftirqd/120:00:001
9858993530,3cyclictest25-21ksoftirqd/119:50:121
9858993530,3cyclictest25-21ksoftirqd/100:19:591
9858993529,4cyclictest25-21ksoftirqd/122:54:511
9858993529,4cyclictest25-21ksoftirqd/122:32:491
9858993529,4cyclictest25-21ksoftirqd/122:03:521
9858993529,4cyclictest25-21ksoftirqd/121:22:281
9858993529,4cyclictest25-21ksoftirqd/121:19:041
9858993529,4cyclictest25-21ksoftirqd/120:03:451
9857993530,3cyclictest9-21ksoftirqd/022:45:000
9857993529,4cyclictest9-21ksoftirqd/020:12:020
9857993529,3cyclictest9-21ksoftirqd/019:44:590
985799352,2cyclictest121rcu_preempt22:27:280
985799350,2cyclictest121rcu_preempt23:51:030
9859993429,3cyclictest33-21ksoftirqd/219:42:142
9859993428,4cyclictest33-21ksoftirqd/223:01:382
9859993428,4cyclictest33-21ksoftirqd/220:16:512
9859993428,4cyclictest33-21ksoftirqd/220:16:512
9859993428,4cyclictest33-21ksoftirqd/219:47:262
9859993428,3cyclictest33-21ksoftirqd/220:00:312
9858993429,3cyclictest25-21ksoftirqd/123:55:191
9858993429,3cyclictest25-21ksoftirqd/122:07:521
9858993428,4cyclictest25-21ksoftirqd/122:36:101
9858993428,4cyclictest25-21ksoftirqd/120:52:071
9858993428,4cyclictest25-21ksoftirqd/120:22:101
9858993428,4cyclictest25-21ksoftirqd/120:06:071
9858993428,4cyclictest25-21ksoftirqd/119:49:331
9858993428,4cyclictest25-21ksoftirqd/119:23:331
9858993428,4cyclictest25-21ksoftirqd/119:17:521
9858993428,4cyclictest25-21ksoftirqd/119:14:511
9858993428,4cyclictest25-21ksoftirqd/100:36:251
9858993428,4cyclictest25-21ksoftirqd/100:21:521
9857993430,3cyclictest9-21ksoftirqd/000:04:590
9857993429,3cyclictest9-21ksoftirqd/020:20:050
9857993429,3cyclictest9-21ksoftirqd/020:20:010
9857993429,3cyclictest9-21ksoftirqd/020:20:000
9857993429,3cyclictest9-21ksoftirqd/019:30:000
9857993428,4cyclictest9-21ksoftirqd/023:45:290
9857993428,4cyclictest9-21ksoftirqd/022:15:350
9857993428,4cyclictest9-21ksoftirqd/021:12:480
9857993427,4cyclictest9-21ksoftirqd/021:40:320
9859993329,3cyclictest33-21ksoftirqd/221:01:502
9859993327,4cyclictest33-21ksoftirqd/223:34:352
9859993327,4cyclictest33-21ksoftirqd/223:06:272
9859993327,4cyclictest33-21ksoftirqd/222:52:032
9859993327,4cyclictest33-21ksoftirqd/222:19:102
9859993327,4cyclictest33-21ksoftirqd/221:36:372
9859993327,4cyclictest33-21ksoftirqd/219:33:132
9859993327,4cyclictest33-21ksoftirqd/219:22:022
9859993327,4cyclictest33-21ksoftirqd/200:04:072
9858993328,3cyclictest25-21ksoftirqd/123:40:001
9858993328,3cyclictest25-21ksoftirqd/121:30:581
9858993327,4cyclictest25-21ksoftirqd/121:14:301
9858993327,4cyclictest25-21ksoftirqd/120:48:541
9858993327,4cyclictest25-21ksoftirqd/119:39:471
9858993326,4cyclictest25-21ksoftirqd/120:15:361
9858993326,4cyclictest25-21ksoftirqd/120:15:361
9857993329,3cyclictest9-21ksoftirqd/022:55:200
9857993328,3cyclictest9-21ksoftirqd/023:40:180
9857993328,3cyclictest9-21ksoftirqd/021:47:500
9857993328,3cyclictest9-21ksoftirqd/021:05:180
9857993328,3cyclictest9-21ksoftirqd/020:55:000
9857993328,2cyclictest9-21ksoftirqd/022:50:000
9857993327,4cyclictest9-21ksoftirqd/023:00:080
9857993327,4cyclictest9-21ksoftirqd/019:55:300
9857993327,4cyclictest9-21ksoftirqd/000:26:170
9857993326,4cyclictest9-21ksoftirqd/000:05:460
9859993228,3cyclictest33-21ksoftirqd/200:14:052
9859993227,3cyclictest33-21ksoftirqd/223:15:112
9859993227,3cyclictest33-21ksoftirqd/221:42:272
9859993227,3cyclictest33-21ksoftirqd/220:43:202
9859993226,4cyclictest33-21ksoftirqd/223:52:442
9859993226,4cyclictest33-21ksoftirqd/223:43:462
9858993228,2cyclictest25-21ksoftirqd/122:25:001
9858993227,3cyclictest25-21ksoftirqd/119:42:581
9858993227,3cyclictest25-21ksoftirqd/100:08:321
9858993226,4cyclictest25-21ksoftirqd/123:07:351
9858993226,4cyclictest25-21ksoftirqd/120:32:171
9858993226,4cyclictest25-21ksoftirqd/119:34:211
9857993227,3cyclictest9-21ksoftirqd/022:07:590
9857993227,3cyclictest9-21ksoftirqd/021:54:550
9857993227,3cyclictest30473-21cron23:15:000
9857993226,4cyclictest9-21ksoftirqd/021:25:040
9857993226,4cyclictest9-21ksoftirqd/021:18:220
9857993226,4cyclictest9-21ksoftirqd/020:44:240
9857993226,4cyclictest9-21ksoftirqd/000:10:360
9859993127,3cyclictest33-21ksoftirqd/220:30:182
9859993126,3cyclictest33-21ksoftirqd/220:59:422
9859993126,3cyclictest33-21ksoftirqd/220:24:102
9859993126,3cyclictest33-21ksoftirqd/200:36:092
9859993125,4cyclictest33-21ksoftirqd/223:35:582
9859993125,4cyclictest33-21ksoftirqd/223:23:072
9859993125,4cyclictest33-21ksoftirqd/222:24:472
9859993125,4cyclictest33-21ksoftirqd/219:57:522
9859993125,3cyclictest33-21ksoftirqd/222:10:222
9858993126,3cyclictest25-21ksoftirqd/122:59:591
9858993125,4cyclictest25-21ksoftirqd/123:15:411
9858993125,4cyclictest25-21ksoftirqd/122:14:511
9858993125,4cyclictest25-21ksoftirqd/121:55:101
9858993125,3cyclictest25-21ksoftirqd/100:10:221
9857993126,3cyclictest9-21ksoftirqd/021:38:170
9857993126,3cyclictest9-21ksoftirqd/021:05:000
9857993126,3cyclictest9-21ksoftirqd/020:28:470
9857993126,3cyclictest9-21ksoftirqd/019:52:460
9857993125,4cyclictest9-21ksoftirqd/023:06:500
9857993125,4cyclictest9-21ksoftirqd/022:51:330
9857993125,4cyclictest9-21ksoftirqd/020:31:000
9857993125,4cyclictest9-21ksoftirqd/000:37:550
9859993024,4cyclictest33-21ksoftirqd/222:55:442
9859993024,4cyclictest33-21ksoftirqd/222:49:062
9859993024,4cyclictest33-21ksoftirqd/221:14:312
9858993026,2cyclictest25-21ksoftirqd/120:55:121
9858993025,3cyclictest25-21ksoftirqd/121:40:581
9858993025,3cyclictest25-21ksoftirqd/121:05:341
9858993024,4cyclictest25-21ksoftirqd/122:42:281
9858993024,4cyclictest25-21ksoftirqd/120:44:051
9857993025,3cyclictest9-21ksoftirqd/022:36:300
9857993025,3cyclictest9-21ksoftirqd/022:20:190
9857993025,3cyclictest9-21ksoftirqd/021:34:190
9857993025,3cyclictest9-21ksoftirqd/000:17:340
9857993024,3cyclictest9-21ksoftirqd/020:07:510
9859992924,3cyclictest33-21ksoftirqd/222:38:502
9859992924,3cyclictest33-21ksoftirqd/222:35:002
9859992924,3cyclictest33-21ksoftirqd/221:06:062
9859992923,4cyclictest33-21ksoftirqd/219:13:322
9859992923,3cyclictest33-21ksoftirqd/221:55:122
9859992922,5cyclictest33-21ksoftirqd/220:36:482
9859992916,11cyclictest33-21ksoftirqd/200:10:002
9858992924,3cyclictest25-21ksoftirqd/122:46:371
9858992923,4cyclictest25-21ksoftirqd/123:20:551
9858992923,4cyclictest25-21ksoftirqd/100:33:041
9858992922,5cyclictest25-21ksoftirqd/119:28:511
9857992924,3cyclictest9-21ksoftirqd/021:20:300
9857992924,3cyclictest9-21ksoftirqd/019:45:120
9857992923,4cyclictest9-21ksoftirqd/020:45:320
9857992923,4cyclictest9-21ksoftirqd/020:38:300
9857992923,4cyclictest9-21ksoftirqd/019:13:170
9859992823,3cyclictest33-21ksoftirqd/222:05:102
9859992823,3cyclictest33-21ksoftirqd/222:00:092
9859992823,3cyclictest33-21ksoftirqd/221:46:302
9857992823,3cyclictest9-21ksoftirqd/021:55:430
9857992822,4cyclictest9-21ksoftirqd/019:32:550
9857992822,4cyclictest9-21ksoftirqd/000:20:510
9859992722,3cyclictest33-21ksoftirqd/221:27:572
9859992722,3cyclictest33-21ksoftirqd/219:35:252
9859992722,3cyclictest33-21ksoftirqd/200:30:362
9859992721,4cyclictest33-21ksoftirqd/221:52:062
9859992721,4cyclictest33-21ksoftirqd/220:07:592
9859992713,12cyclictest33-21ksoftirqd/219:20:012
9858992722,3cyclictest25-21ksoftirqd/120:27:111
9857992723,3cyclictest9-21ksoftirqd/023:15:140
9857992721,4cyclictest9-21ksoftirqd/022:02:110
9857992721,4cyclictest9-21ksoftirqd/019:39:570
9857992719,6cyclictest9-21ksoftirqd/019:25:010
9857992620,4cyclictest9-21ksoftirqd/023:39:100
9859992520,3cyclictest33-21ksoftirqd/221:16:162
9859992519,3cyclictest33-21ksoftirqd/220:45:192
9857992519,4cyclictest9-21ksoftirqd/023:32:360
9859992420,3cyclictest33-21ksoftirqd/220:25:142
9859992419,2cyclictest33-21ksoftirqd/220:10:132
9858992318,3cyclictest25-21ksoftirqd/123:40:251
9858992318,3cyclictest25-21ksoftirqd/100:28:571
9859992014,4cyclictest33-21ksoftirqd/219:25:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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