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2026-04-12 - 13:37
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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 Sun Apr 12, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491233164,23phc2sys0-21swapper/319:09:563
304662231167,22sleep00-21swapper/019:09:130
303222229165,21sleep10-21swapper/119:07:211
301912204171,22sleep20-21swapper/219:05:462
305282163124,13sleep30-21swapper/319:10:003
89002780,5sleep09-21ksoftirqd/021:45:170
139391710,1ptp4l401ktimersoftd/300:30:213
30352640,3sleep13039-21irqrtprio22:40:181
139391640,2ptp4l0-21swapper/322:25:253
27722620,2sleep20-21swapper/221:30:272
139391580,1ptp4l401ktimersoftd/300:25:173
139391580,1ptp4l401ktimersoftd/300:25:173
30822995724,5cyclictest33-21ksoftirqd/223:20:242
14852560,2sleep00-21swapper/019:15:150
30822995522,7cyclictest33-21ksoftirqd/221:10:252
30822995423,4cyclictest33-21ksoftirqd/223:00:162
139391540,1ptp4l401ktimersoftd/321:45:173
30822995322,3cyclictest33-21ksoftirqd/200:25:272
30822995322,3cyclictest33-21ksoftirqd/200:25:272
30822995220,4cyclictest33-21ksoftirqd/220:55:192
30822995118,6cyclictest33-21ksoftirqd/223:40:002
30822995022,4cyclictest33-21ksoftirqd/219:50:132
30822995022,3cyclictest33-21ksoftirqd/223:30:152
30822995018,8cyclictest33-21ksoftirqd/223:15:012
30822994918,4cyclictest33-21ksoftirqd/200:05:262
225142490,2sleep20-21swapper/222:15:002
30822994813,4cyclictest33-21ksoftirqd/222:05:242
30822994813,4cyclictest33-21ksoftirqd/220:20:242
30822994719,6cyclictest33-21ksoftirqd/221:55:242
30822994717,4cyclictest33-21ksoftirqd/200:34:552
30820994729,7cyclictest9-21ksoftirqd/023:55:200
30822994627,6cyclictest33-21ksoftirqd/222:40:002
30822994627,6cyclictest33-21ksoftirqd/222:40:002
30822994617,3cyclictest33-21ksoftirqd/222:15:202
30822994616,4cyclictest33-21ksoftirqd/222:00:202
30822994612,9cyclictest33-21ksoftirqd/222:50:142
30822994515,7cyclictest33-21ksoftirqd/219:30:122
30822994514,7cyclictest33-21ksoftirqd/200:00:282
30822994511,8cyclictest33-21ksoftirqd/221:40:242
30822994510,4cyclictest33-21ksoftirqd/220:15:172
30822994433,9cyclictest33-21ksoftirqd/222:55:242
30822994426,4cyclictest33-21ksoftirqd/222:25:252
30822994410,4cyclictest33-21ksoftirqd/222:45:192
30820994413,9cyclictest9-21ksoftirqd/022:50:200
139391440,0ptp4l401ktimersoftd/323:05:243
3082299439,9cyclictest33-21ksoftirqd/219:45:252
3082299438,6cyclictest33-21ksoftirqd/221:00:142
3082299437,4cyclictest33-21ksoftirqd/219:35:242
3082299433,3cyclictest121rcu_preempt21:10:002
30822994324,8cyclictest33-21ksoftirqd/219:20:172
30822994315,7cyclictest33-21ksoftirqd/220:09:542
3082299431,3cyclictest33-21ksoftirqd/222:40:212
30822994313,7cyclictest33-21ksoftirqd/219:25:182
3082099434,3cyclictest9-21ksoftirqd/023:00:200
3082099433,5cyclictest9-21ksoftirqd/021:50:150
139391430,0ptp4l401ktimersoftd/323:04:373
3082299427,4cyclictest33-21ksoftirqd/221:26:532
30822994237,2cyclictest321ktimersoftd/221:45:172
30822994226,5cyclictest33-21ksoftirqd/220:35:002
30822994212,7cyclictest33-21ksoftirqd/223:15:142
3082099426,2cyclictest9-21ksoftirqd/023:25:270
3082099425,2cyclictest9-21ksoftirqd/023:10:250
3082099425,2cyclictest9-21ksoftirqd/022:20:190
30820994237,3cyclictest18590-21cron21:00:000
3082299418,4cyclictest33-21ksoftirqd/219:40:182
3082099419,3cyclictest9-21ksoftirqd/000:05:000
3082099417,6cyclictest9-21ksoftirqd/000:20:150
3082099416,3cyclictest9-21ksoftirqd/022:40:210
3082099416,3cyclictest9-21ksoftirqd/020:30:270
3082099416,2cyclictest9-21ksoftirqd/023:20:150
3082099414,2cyclictest121rcu_preempt23:35:240
3082099412,7cyclictest9-21ksoftirqd/022:55:210
3082099411,6cyclictest9-21ksoftirqd/021:20:230
30820994111,4cyclictest9-21ksoftirqd/021:30:000
30822994035,3cyclictest33-21ksoftirqd/200:40:002
30822994026,4cyclictest33-21ksoftirqd/223:50:192
30822994012,6cyclictest33-21ksoftirqd/220:40:002
30822994012,6cyclictest33-21ksoftirqd/220:40:002
3082099407,6cyclictest9-21ksoftirqd/000:30:240
3082099406,2cyclictest9-21ksoftirqd/021:30:170
3082099404,3cyclictest9-21ksoftirqd/021:10:230
3082099404,3cyclictest121rcu_preempt23:40:240
3082099404,2cyclictest121rcu_preempt23:45:160
3082099403,3cyclictest9-21ksoftirqd/019:45:170
3082099401,6cyclictest9-21ksoftirqd/019:30:220
30820994013,7cyclictest9-21ksoftirqd/022:10:270
30820994012,4cyclictest9-21ksoftirqd/020:20:160
3082099400,2cyclictest121rcu_preempt21:05:000
14222400,3sleep31427-21fschecks_time23:45:153
3082299398,5cyclictest33-21ksoftirqd/220:40:142
3082299398,5cyclictest33-21ksoftirqd/220:40:142
30822993934,2cyclictest33-21ksoftirqd/221:40:012
3082299393,3cyclictest121rcu_preempt21:15:272
30822993924,4cyclictest33-21ksoftirqd/200:10:172
30822993923,4cyclictest33-21ksoftirqd/219:15:012
3082299391,3cyclictest121rcu_preempt23:45:002
3082299391,3cyclictest121rcu_preempt00:00:002
3082099397,9cyclictest9-21ksoftirqd/022:29:390
3082099397,5cyclictest9-21ksoftirqd/022:30:230
3082099396,3cyclictest9-21ksoftirqd/019:40:150
3082099395,3cyclictest9-21ksoftirqd/020:25:230
3082099395,2cyclictest121rcu_preempt00:10:220
3082099394,2cyclictest9-21ksoftirqd/021:40:190
3082099394,2cyclictest121rcu_preempt00:35:230
3082099393,3cyclictest121rcu_preempt19:50:130
3082299389,3cyclictest33-21ksoftirqd/220:00:172
3082299387,3cyclictest33-21ksoftirqd/220:25:202
30822993833,3cyclictest33-21ksoftirqd/223:45:142
30821993832,4cyclictest25-21ksoftirqd/122:02:351
3082099387,6cyclictest9-21ksoftirqd/023:16:040
3082099387,5cyclictest9-21ksoftirqd/019:25:140
3082099386,6cyclictest9-21ksoftirqd/022:05:140
3082099386,6cyclictest9-21ksoftirqd/021:07:510
3082099385,2cyclictest121rcu_preempt00:25:200
3082099385,2cyclictest121rcu_preempt00:25:200
3082099384,5cyclictest9-21ksoftirqd/022:00:130
3082099384,2cyclictest121rcu_preempt22:15:170
3082099384,2cyclictest121rcu_preempt19:10:200
3082099383,3cyclictest9-21ksoftirqd/000:15:150
3082099383,2cyclictest121rcu_preempt21:55:130
3082099383,2cyclictest121rcu_preempt20:00:190
3082099382,3cyclictest9-21ksoftirqd/021:35:170
3082099380,2cyclictest121rcu_preempt20:50:010
30823993731,4cyclictest41-21ksoftirqd/319:58:293
30823993731,4cyclictest41-21ksoftirqd/300:22:063
3082299374,5cyclictest33-21ksoftirqd/219:15:132
30822993733,2cyclictest33-21ksoftirqd/220:50:242
30822993732,2cyclictest33-21ksoftirqd/200:25:002
30822993724,6cyclictest33-21ksoftirqd/221:54:192
3082299372,2cyclictest121rcu_preempt23:05:202
3082299370,6cyclictest33-21ksoftirqd/221:20:212
3082299370,3cyclictest121rcu_preempt19:55:202
3082299370,2cyclictest121rcu_preempt22:35:002
30821993731,4cyclictest25-21ksoftirqd/123:09:261
3082099375,2cyclictest121rcu_preempt20:05:170
3082099374,3cyclictest121rcu_preempt22:35:240
3082099374,3cyclictest121rcu_preempt22:35:240
3082099374,3cyclictest121rcu_preempt20:40:250
3082099374,3cyclictest121rcu_preempt20:40:250
3082099372,6cyclictest9-21ksoftirqd/023:50:240
30820993724,4cyclictest131rcu_sched00:09:540
3082099372,2cyclictest121rcu_preempt22:45:170
3082099371,2cyclictest121rcu_preempt23:30:180
30823993629,4cyclictest41-21ksoftirqd/322:46:463
30823993629,4cyclictest41-21ksoftirqd/320:34:573
3082299363,2cyclictest121rcu_preempt20:45:162
30822993632,2cyclictest33-21ksoftirqd/200:15:192
30822993630,4cyclictest33-21ksoftirqd/223:25:132
30821993630,4cyclictest25-21ksoftirqd/121:47:431
30821993630,4cyclictest25-21ksoftirqd/120:48:541
30821993630,4cyclictest25-21ksoftirqd/119:24:251
3082099369,4cyclictest9-21ksoftirqd/021:19:580
3082099366,3cyclictest9-21ksoftirqd/020:36:480
3082099366,3cyclictest9-21ksoftirqd/020:36:480
3082099365,2cyclictest121rcu_preempt23:05:130
3082099364,2cyclictest121rcu_preempt19:35:190
30820993632,2cyclictest9-21ksoftirqd/020:15:000
30820993631,3cyclictest9-21ksoftirqd/020:50:190
139391360,1ptp4l391rcuc/320:05:193
139391360,0ptp4l401ktimersoftd/319:40:133
30823993530,3cyclictest41-21ksoftirqd/321:16:563
30823993529,4cyclictest41-21ksoftirqd/322:35:593
30823993529,4cyclictest41-21ksoftirqd/322:35:593
30823993529,4cyclictest41-21ksoftirqd/321:03:413
30823993529,4cyclictest41-21ksoftirqd/319:47:303
30822993531,2cyclictest33-21ksoftirqd/222:20:262
30821993529,4cyclictest25-21ksoftirqd/123:13:041
30821993529,4cyclictest25-21ksoftirqd/120:31:451
30821993529,4cyclictest25-21ksoftirqd/120:01:241
30821993529,4cyclictest25-21ksoftirqd/119:41:561
3082099357,7cyclictest9-21ksoftirqd/020:00:020
3082099356,3cyclictest9-21ksoftirqd/020:15:580
30823993429,3cyclictest41-21ksoftirqd/322:05:133
30823993428,4cyclictest41-21ksoftirqd/323:27:103
30823993428,4cyclictest41-21ksoftirqd/322:42:453
30823993428,4cyclictest41-21ksoftirqd/321:41:163
30823993428,4cyclictest41-21ksoftirqd/321:33:093
30823993428,3cyclictest41-21ksoftirqd/321:39:163
30822993428,3cyclictest33-21ksoftirqd/220:10:132
30821993428,4cyclictest25-21ksoftirqd/122:17:401
30821993428,4cyclictest25-21ksoftirqd/121:02:111
30821993428,4cyclictest25-21ksoftirqd/120:08:421
30821993428,4cyclictest25-21ksoftirqd/119:55:471
30821993428,4cyclictest25-21ksoftirqd/119:35:501
30821993427,5cyclictest25-21ksoftirqd/122:34:211
30821993427,5cyclictest25-21ksoftirqd/121:33:511
30820993429,3cyclictest9-21ksoftirqd/019:25:010
139391340,0ptp4l401ktimersoftd/300:03:523
30823993327,4cyclictest41-21ksoftirqd/323:57:153
30823993327,4cyclictest41-21ksoftirqd/323:54:183
30823993327,4cyclictest41-21ksoftirqd/320:45:113
30821993328,3cyclictest25-21ksoftirqd/123:00:001
30821993328,3cyclictest25-21ksoftirqd/121:10:131
30821993328,3cyclictest25-21ksoftirqd/119:25:181
30821993327,4cyclictest25-21ksoftirqd/123:51:391
30821993327,4cyclictest25-21ksoftirqd/123:17:441
30821993327,4cyclictest25-21ksoftirqd/122:05:041
30821993327,4cyclictest25-21ksoftirqd/120:43:491
30821993327,4cyclictest25-21ksoftirqd/120:43:491
30821993327,4cyclictest25-21ksoftirqd/119:46:281
30823993227,3cyclictest41-21ksoftirqd/321:59:243
30823993226,4cyclictest41-21ksoftirqd/323:24:053
30823993226,4cyclictest41-21ksoftirqd/320:58:353
30823993226,3cyclictest41-21ksoftirqd/321:25:123
30821993227,3cyclictest25-21ksoftirqd/121:39:361
30821993227,3cyclictest25-21ksoftirqd/119:14:171
30821993227,3cyclictest25-21ksoftirqd/100:11:481
30821993226,4cyclictest25-21ksoftirqd/123:36:031
30821993226,4cyclictest25-21ksoftirqd/121:55:331
30821993226,4cyclictest25-21ksoftirqd/121:44:351
30821993226,4cyclictest25-21ksoftirqd/121:19:231
30821993226,4cyclictest25-21ksoftirqd/120:55:561
30821993226,4cyclictest25-21ksoftirqd/120:35:101
30821993226,4cyclictest25-21ksoftirqd/120:35:101
30821993226,4cyclictest25-21ksoftirqd/119:54:501
139391320,0ptp4l401ktimersoftd/319:32:463
139391320,0ptp4l401ktimersoftd/319:25:213
30823993126,3cyclictest41-21ksoftirqd/321:52:593
30823993126,3cyclictest41-21ksoftirqd/319:16:143
30823993126,3cyclictest41-21ksoftirqd/300:07:453
30823993125,4cyclictest41-21ksoftirqd/323:43:353
30823993125,4cyclictest41-21ksoftirqd/323:35:043
30823993125,4cyclictest41-21ksoftirqd/323:13:333
30823993125,4cyclictest41-21ksoftirqd/322:33:063
30823993125,4cyclictest41-21ksoftirqd/321:10:423
30823993125,4cyclictest41-21ksoftirqd/320:03:273
30823993125,4cyclictest41-21ksoftirqd/300:11:153
30823993125,3cyclictest41-21ksoftirqd/322:10:483
30823993124,4cyclictest41-21ksoftirqd/322:01:333
30821993126,3cyclictest25-21ksoftirqd/123:31:411
30821993126,3cyclictest25-21ksoftirqd/120:50:111
30821993126,3cyclictest25-21ksoftirqd/100:37:481
30821993125,4cyclictest25-21ksoftirqd/123:58:331
30821993125,4cyclictest25-21ksoftirqd/123:21:021
30821993125,4cyclictest25-21ksoftirqd/122:53:061
30821993125,4cyclictest25-21ksoftirqd/119:32:571
139391310,0ptp4l401ktimersoftd/320:12:533
30823993025,3cyclictest41-21ksoftirqd/322:58:343
30823993025,3cyclictest41-21ksoftirqd/320:35:583
30823993025,3cyclictest41-21ksoftirqd/320:35:583
30823993025,3cyclictest41-21ksoftirqd/320:24:313
30823993025,3cyclictest41-21ksoftirqd/319:38:583
30823993025,3cyclictest41-21ksoftirqd/319:23:263
30823993025,3cyclictest2911-21irqrtprio20:25:193
30823993024,4cyclictest41-21ksoftirqd/322:22:313
30823993024,4cyclictest41-21ksoftirqd/321:24:263
30821993025,3cyclictest25-21ksoftirqd/100:21:001
30821993025,3cyclictest25-21ksoftirqd/100:16:471
30821993024,4cyclictest25-21ksoftirqd/122:28:071
30821993024,4cyclictest25-21ksoftirqd/120:12:151
30823992924,3cyclictest41-21ksoftirqd/322:54:363
30823992924,3cyclictest41-21ksoftirqd/319:54:483
30823992923,4cyclictest41-21ksoftirqd/300:37:023
30821992924,3cyclictest25-21ksoftirqd/123:47:011
30821992924,3cyclictest25-21ksoftirqd/122:38:571
30821992924,3cyclictest25-21ksoftirqd/122:38:571
30821992924,3cyclictest25-21ksoftirqd/122:20:111
30821992924,3cyclictest25-21ksoftirqd/121:53:241
30821992924,3cyclictest25-21ksoftirqd/100:09:101
30821992923,4cyclictest25-21ksoftirqd/123:42:531
30821992923,4cyclictest25-21ksoftirqd/122:45:041
30821992923,4cyclictest25-21ksoftirqd/121:21:561
30823992824,3cyclictest41-21ksoftirqd/300:20:003
30823992822,4cyclictest41-21ksoftirqd/323:34:403
30821992823,3cyclictest25-21ksoftirqd/122:12:331
30821992823,3cyclictest25-21ksoftirqd/121:25:121
30821992822,4cyclictest25-21ksoftirqd/120:21:231
30821992822,3cyclictest25-21ksoftirqd/100:30:181
139391280,0ptp4l401ktimersoftd/323:16:043
139391280,0ptp4l401ktimersoftd/321:05:563
30823992722,3cyclictest41-21ksoftirqd/320:42:473
30823992722,3cyclictest41-21ksoftirqd/320:42:473
30823992721,4cyclictest41-21ksoftirqd/320:52:373
30821992721,4cyclictest25-21ksoftirqd/120:26:121
30821992721,4cyclictest25-21ksoftirqd/100:03:031
139391270,1ptp4l391rcuc/322:15:403
30821992621,3cyclictest25-21ksoftirqd/100:30:001
30821992621,3cyclictest25-21ksoftirqd/100:30:001
139391260,1ptp4l401ktimersoftd/320:15:223
30821992519,4cyclictest25-21ksoftirqd/119:16:151
30821992418,4cyclictest25-21ksoftirqd/123:28:281
30821992317,4cyclictest25-21ksoftirqd/121:09:331
30821992317,3cyclictest25-21ksoftirqd/123:00:101
30821991811,4cyclictest31940-21sshd20:19:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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