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2025-11-21 - 17:07
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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 Fri Nov 21, 2025 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145672235169,22sleep00-21swapper/007:05:500
147292223196,18sleep30-21swapper/307:07:593
146762208165,32sleep20-21swapper/207:07:172
147322203170,22sleep10-21swapper/107:08:011
96562690,2sleep20-21swapper/212:35:122
15188996419,4cyclictest9-21ksoftirqd/010:40:000
136991560,1ptp4l401ktimersoftd/310:59:573
136991560,1ptp4l401ktimersoftd/308:05:583
282732550,5sleep11518999cyclictest08:45:011
15188994813,4cyclictest9-21ksoftirqd/010:24:590
15188994617,7cyclictest9-21ksoftirqd/007:15:000
289502450,1sleep20-21swapper/212:05:272
1519199457,3cyclictest121rcu_preempt08:42:453
15188994411,4cyclictest9-21ksoftirqd/011:30:010
1518899440,3cyclictest121rcu_preempt08:30:000
1518899437,5cyclictest9-21ksoftirqd/011:35:250
1518899437,3cyclictest9-21ksoftirqd/009:50:150
1518899436,3cyclictest9-21ksoftirqd/008:10:220
136991430,0ptp4l401ktimersoftd/309:05:223
136991430,0ptp4l401ktimersoftd/309:01:483
1519199423,3cyclictest41-21ksoftirqd/312:09:283
15188994213,7cyclictest9-21ksoftirqd/007:35:000
15188994212,8cyclictest9-21ksoftirqd/008:45:000
136991420,0ptp4l401ktimersoftd/312:22:183
136991420,0ptp4l401ktimersoftd/312:03:333
1519199412,3cyclictest41-21ksoftirqd/311:22:153
1519199411,3cyclictest41-21ksoftirqd/311:56:083
1518899419,5cyclictest9-21ksoftirqd/010:30:180
1518899419,4cyclictest9-21ksoftirqd/011:00:000
1518899416,5cyclictest9-21ksoftirqd/010:54:590
1518899415,7cyclictest9-21ksoftirqd/010:15:130
15188994137,2cyclictest9-21ksoftirqd/007:39:590
15188994125,5cyclictest9-21ksoftirqd/011:05:000
15188994112,4cyclictest9-21ksoftirqd/010:45:160
15188994110,6cyclictest9-21ksoftirqd/010:40:220
136991410,0ptp4l401ktimersoftd/308:55:173
1519199409,4cyclictest41-21ksoftirqd/307:25:013
1519199404,8cyclictest41-21ksoftirqd/310:25:003
15191994034,3cyclictest41-21ksoftirqd/308:20:013
15191994034,3cyclictest41-21ksoftirqd/308:20:003
1519199403,10cyclictest41-21ksoftirqd/309:55:003
1519199401,3cyclictest41-21ksoftirqd/308:13:323
1518899409,6cyclictest9-21ksoftirqd/011:55:230
1518899407,6cyclictest9-21ksoftirqd/008:55:130
1518899406,4cyclictest9-21ksoftirqd/009:30:260
1518899406,3cyclictest9-21ksoftirqd/012:35:140
1518899405,4cyclictest9-21ksoftirqd/007:45:180
1518899404,3cyclictest9-21ksoftirqd/011:20:260
15188994010,8cyclictest9-21ksoftirqd/010:10:170
15188994010,4cyclictest9-21ksoftirqd/011:30:240
136991400,0ptp4l401ktimersoftd/311:25:463
1519199399,3cyclictest41-21ksoftirqd/310:35:003
1519199398,3cyclictest41-21ksoftirqd/310:55:003
1519199391,5cyclictest41-21ksoftirqd/311:44:453
1519199391,4cyclictest41-21ksoftirqd/310:04:043
1519199391,3cyclictest41-21ksoftirqd/308:47:553
15189993934,3cyclictest25-21ksoftirqd/110:40:001
1518899396,6cyclictest9-21ksoftirqd/010:25:260
1518899396,6cyclictest9-21ksoftirqd/010:05:200
1518899396,4cyclictest9-21ksoftirqd/011:40:270
1518899396,2cyclictest9-21ksoftirqd/009:35:240
1518899395,3cyclictest121rcu_preempt11:10:220
1518899394,3cyclictest121rcu_preempt08:50:170
1518899393,3cyclictest9-21ksoftirqd/007:40:170
1518899393,3cyclictest121rcu_preempt09:10:210
1518899393,3cyclictest121rcu_preempt07:20:180
15188993933,3cyclictest9-21ksoftirqd/011:10:000
1518899392,5cyclictest9-21ksoftirqd/007:55:240
1518899391,6cyclictest9-21ksoftirqd/007:25:150
15191993831,4cyclictest41-21ksoftirqd/311:00:173
1519199381,5cyclictest41-21ksoftirqd/312:33:513
1519199381,5cyclictest41-21ksoftirqd/307:50:163
1519199381,4cyclictest41-21ksoftirqd/309:30:203
1519199380,3cyclictest41-21ksoftirqd/310:18:443
15190993826,11cyclictest33-21ksoftirqd/208:44:592
1518899387,4cyclictest9-21ksoftirqd/009:05:000
1518899385,3cyclictest9-21ksoftirqd/009:55:200
1518899385,2cyclictest121rcu_preempt08:00:150
1518899384,3cyclictest121rcu_preempt11:45:180
1518899384,11cyclictest9-21ksoftirqd/009:05:270
1518899383,7cyclictest9-21ksoftirqd/012:15:010
1518899383,3cyclictest9-21ksoftirqd/012:25:120
1518899381,8cyclictest121rcu_preempt12:30:160
1518899381,6cyclictest9-21ksoftirqd/012:15:220
1518899380,6cyclictest9-21ksoftirqd/010:00:130
1519199376,8cyclictest41-21ksoftirqd/310:39:353
15191993733,2cyclictest41-21ksoftirqd/309:20:013
15191993733,2cyclictest41-21ksoftirqd/309:20:003
15191993732,3cyclictest41-21ksoftirqd/308:50:253
15191993732,3cyclictest41-21ksoftirqd/307:35:013
1519199372,8cyclictest41-21ksoftirqd/310:40:163
15191993726,9cyclictest41-21ksoftirqd/311:45:263
1519199372,3cyclictest41-21ksoftirqd/309:45:513
1519199372,3cyclictest41-21ksoftirqd/307:56:363
1519199371,3cyclictest41-21ksoftirqd/309:40:203
1518899376,4cyclictest9-21ksoftirqd/008:30:150
1518899375,4cyclictest9-21ksoftirqd/007:55:010
1518899375,2cyclictest121rcu_preempt12:20:250
1518899374,6cyclictest9-21ksoftirqd/011:50:230
1518899373,3cyclictest9-21ksoftirqd/009:40:170
15188993733,2cyclictest9-21ksoftirqd/008:20:010
15188993733,2cyclictest9-21ksoftirqd/008:20:000
1518899373,2cyclictest121rcu_preempt12:05:170
1518899373,2cyclictest121rcu_preempt09:49:250
1518899372,5cyclictest9-21ksoftirqd/011:15:260
1518899372,5cyclictest9-21ksoftirqd/011:15:260
1518899372,3cyclictest9-21ksoftirqd/009:25:190
1518899371,6cyclictest9-21ksoftirqd/009:20:200
1519199368,7cyclictest41-21ksoftirqd/311:50:223
1519199368,4cyclictest41-21ksoftirqd/309:35:223
1519199367,4cyclictest41-21ksoftirqd/310:45:173
1519199367,4cyclictest41-21ksoftirqd/308:35:133
1519199367,3cyclictest41-21ksoftirqd/308:29:313
1519199363,4cyclictest41-21ksoftirqd/308:20:283
15191993630,4cyclictest41-21ksoftirqd/308:31:543
15191993630,3cyclictest41-21ksoftirqd/309:55:123
15191993630,3cyclictest41-21ksoftirqd/309:25:173
1519199361,5cyclictest41-21ksoftirqd/311:36:233
1519199361,3cyclictest41-21ksoftirqd/311:19:303
1519199361,3cyclictest41-21ksoftirqd/311:19:303
1519199361,3cyclictest41-21ksoftirqd/307:39:193
1519199360,4cyclictest41-21ksoftirqd/311:10:263
15190993631,3cyclictest33-21ksoftirqd/208:35:012
15190993630,4cyclictest33-21ksoftirqd/210:50:532
15190993630,4cyclictest33-21ksoftirqd/210:44:032
15190993629,4cyclictest10297-21cron11:30:002
15189993631,3cyclictest25-21ksoftirqd/112:20:001
1518899367,7cyclictest9-21ksoftirqd/009:15:200
1518899367,7cyclictest9-21ksoftirqd/009:15:200
1518899364,6cyclictest121rcu_preempt07:15:180
1518899363,3cyclictest121rcu_preempt08:45:280
15188993630,3cyclictest9-21ksoftirqd/012:00:160
1518899360,6cyclictest9-21ksoftirqd/008:20:230
136991360,0ptp4l401ktimersoftd/307:10:253
1519199357,6cyclictest41-21ksoftirqd/312:35:123
15191993531,2cyclictest41-21ksoftirqd/310:15:013
15191993530,3cyclictest41-21ksoftirqd/311:35:013
1519199351,3cyclictest41-21ksoftirqd/310:09:103
1519199351,3cyclictest41-21ksoftirqd/309:14:223
15190993530,3cyclictest33-21ksoftirqd/208:55:592
15190993529,4cyclictest33-21ksoftirqd/210:26:432
15190993529,4cyclictest33-21ksoftirqd/210:04:242
15190993529,4cyclictest33-21ksoftirqd/209:56:472
15190993529,4cyclictest33-21ksoftirqd/209:34:162
15190993529,4cyclictest33-21ksoftirqd/207:57:152
15189993530,3cyclictest25779-21cron10:54:591
15189993529,4cyclictest25-21ksoftirqd/110:02:541
15189993529,4cyclictest25-21ksoftirqd/107:11:451
15191993429,3cyclictest41-21ksoftirqd/307:30:013
15191993429,2cyclictest41-21ksoftirqd/309:20:143
15191993427,4cyclictest41-21ksoftirqd/307:45:103
1519199342,3cyclictest121rcu_preempt11:10:003
1519199341,3cyclictest121rcu_preempt08:00:203
15190993429,3cyclictest33-21ksoftirqd/207:40:152
15190993428,4cyclictest33-21ksoftirqd/210:59:002
15190993428,4cyclictest33-21ksoftirqd/209:16:102
15190993428,4cyclictest33-21ksoftirqd/209:16:102
15190993428,4cyclictest33-21ksoftirqd/209:06:472
15190993428,4cyclictest33-21ksoftirqd/208:46:092
15190993428,4cyclictest13584-21cron08:15:002
15190993427,4cyclictest33-21ksoftirqd/212:24:052
1518999343,3cyclictest121rcu_preempt10:08:111
15189993429,3cyclictest25-21ksoftirqd/111:24:391
15189993428,4cyclictest25-21ksoftirqd/110:27:261
15189993428,4cyclictest25-21ksoftirqd/110:16:311
15189993428,4cyclictest25-21ksoftirqd/108:04:091
15189993427,4cyclictest25-21ksoftirqd/110:30:131
1518899344,3cyclictest121rcu_preempt08:05:200
1518899342,6cyclictest9-21ksoftirqd/008:35:190
15191993328,3cyclictest41-21ksoftirqd/307:40:243
15191993327,4cyclictest41-21ksoftirqd/312:16:353
15190993328,3cyclictest33-21ksoftirqd/210:38:532
15190993327,4cyclictest33-21ksoftirqd/211:15:412
15190993327,4cyclictest33-21ksoftirqd/211:15:412
15190993327,4cyclictest33-21ksoftirqd/211:06:462
15190993327,4cyclictest33-21ksoftirqd/210:48:532
15190993327,4cyclictest33-21ksoftirqd/210:18:362
15190993327,4cyclictest33-21ksoftirqd/209:11:452
15190993327,3cyclictest14805-21cron09:25:012
15189993327,4cyclictest25-21ksoftirqd/112:37:111
15189993327,4cyclictest25-21ksoftirqd/109:33:261
15189993327,4cyclictest25-21ksoftirqd/108:37:091
15189993327,4cyclictest25-21ksoftirqd/108:08:251
15189993327,4cyclictest25-21ksoftirqd/107:51:281
15189993327,4cyclictest25-21ksoftirqd/107:33:281
15189993326,5cyclictest25-21ksoftirqd/111:38:301
15189993326,5cyclictest25-21ksoftirqd/109:56:451
15189993326,5cyclictest25-21ksoftirqd/108:46:331
15191993227,3cyclictest41-21ksoftirqd/310:30:003
15191993226,3cyclictest41-21ksoftirqd/312:25:003
1519199320,8cyclictest41-21ksoftirqd/307:15:153
15190993227,3cyclictest33-21ksoftirqd/208:23:382
15190993227,3cyclictest33-21ksoftirqd/208:00:082
15190993227,3cyclictest33-21ksoftirqd/207:50:362
15190993226,4cyclictest33-21ksoftirqd/212:28:382
15190993226,4cyclictest33-21ksoftirqd/211:00:492
15190993226,4cyclictest33-21ksoftirqd/210:23:212
15190993226,4cyclictest33-21ksoftirqd/209:49:402
15190993226,4cyclictest33-21ksoftirqd/209:42:012
15190993226,4cyclictest33-21ksoftirqd/208:52:112
15190993226,4cyclictest33-21ksoftirqd/208:06:262
15190993226,4cyclictest33-21ksoftirqd/207:21:052
15189993227,3cyclictest25-21ksoftirqd/110:24:391
15189993227,3cyclictest25-21ksoftirqd/108:32:031
15189993226,4cyclictest25-21ksoftirqd/111:53:191
15189993226,4cyclictest25-21ksoftirqd/107:40:051
15189993226,4cyclictest25-21ksoftirqd/107:27:021
15189993225,5cyclictest25-21ksoftirqd/112:05:061
15189993225,5cyclictest25-21ksoftirqd/109:41:411
1519199310,2cyclictest121rcu_preempt12:10:133
15190993127,3cyclictest33-21ksoftirqd/211:55:132
15190993126,3cyclictest33-21ksoftirqd/211:45:452
15190993126,3cyclictest33-21ksoftirqd/210:10:042
15190993126,3cyclictest33-21ksoftirqd/209:38:422
15190993126,3cyclictest33-21ksoftirqd/208:15:132
15190993126,3cyclictest33-21ksoftirqd/208:15:122
15190993126,3cyclictest33-21ksoftirqd/207:37:072
15190993125,4cyclictest33-21ksoftirqd/212:18:592
15190993125,4cyclictest33-21ksoftirqd/211:40:422
15190993125,4cyclictest33-21ksoftirqd/208:35:312
15190993125,4cyclictest33-21ksoftirqd/208:28:452
15189993126,3cyclictest25-21ksoftirqd/109:54:431
15189993125,4cyclictest25-21ksoftirqd/111:17:281
15189993125,4cyclictest25-21ksoftirqd/111:17:281
15189993125,4cyclictest25-21ksoftirqd/110:57:101
15189993125,4cyclictest25-21ksoftirqd/109:16:461
15189993125,4cyclictest25-21ksoftirqd/109:16:451
15189993124,4cyclictest25-21ksoftirqd/108:20:011
15189993124,4cyclictest25-21ksoftirqd/108:20:001
15190993025,3cyclictest33-21ksoftirqd/211:35:552
15190993024,4cyclictest33-21ksoftirqd/210:32:372
15190993024,4cyclictest33-21ksoftirqd/209:02:272
15190993024,4cyclictest33-21ksoftirqd/207:27:022
15190993024,4cyclictest33-21ksoftirqd/207:11:422
15189993025,3cyclictest25-21ksoftirqd/111:14:231
15189993025,3cyclictest25-21ksoftirqd/111:07:041
15189993025,3cyclictest25-21ksoftirqd/109:25:001
15189993024,4cyclictest25-21ksoftirqd/112:33:141
15189993024,4cyclictest25-21ksoftirqd/112:13:571
15189993024,4cyclictest25-21ksoftirqd/111:31:201
15189993024,4cyclictest25-21ksoftirqd/111:27:071
15189993024,4cyclictest25-21ksoftirqd/110:48:291
15189993024,4cyclictest25-21ksoftirqd/108:51:231
15190992924,3cyclictest33-21ksoftirqd/211:53:502
15190992924,3cyclictest33-21ksoftirqd/209:54:202
15190992923,4cyclictest33-21ksoftirqd/210:06:512
15189992924,3cyclictest25-21ksoftirqd/111:48:381
15189992924,3cyclictest25-21ksoftirqd/111:04:361
15189992923,4cyclictest25-21ksoftirqd/110:13:101
15189992923,4cyclictest25-21ksoftirqd/109:46:431
15189992923,4cyclictest25-21ksoftirqd/109:06:421
15189992923,4cyclictest25-21ksoftirqd/107:58:311
15190992822,4cyclictest33-21ksoftirqd/212:31:512
15189992823,3cyclictest25-21ksoftirqd/109:35:431
15189992823,3cyclictest25-21ksoftirqd/107:47:381
15189992822,4cyclictest25-21ksoftirqd/108:55:591
15189992822,4cyclictest25-21ksoftirqd/108:23:341
15190992722,3cyclictest33-21ksoftirqd/207:30:562
15190992721,4cyclictest33-21ksoftirqd/212:14:222
15190992721,4cyclictest33-21ksoftirqd/212:03:522
15190992721,4cyclictest33-21ksoftirqd/207:45:282
15189992722,3cyclictest25-21ksoftirqd/107:19:541
15189992721,4cyclictest25-21ksoftirqd/107:24:031
15189992721,3cyclictest25-21ksoftirqd/112:25:001
15189992721,3cyclictest25-21ksoftirqd/110:41:331
15190992621,3cyclictest33-21ksoftirqd/211:12:312
15190992621,3cyclictest33-21ksoftirqd/207:19:412
15189992621,3cyclictest25-21ksoftirqd/112:03:521
15189992620,4cyclictest25-21ksoftirqd/112:28:411
15189992620,3cyclictest25-21ksoftirqd/109:10:171
15190992520,3cyclictest33-21ksoftirqd/211:32:352
15190992520,3cyclictest33-21ksoftirqd/211:20:202
15189992519,4cyclictest25-21ksoftirqd/109:01:371
15189992519,4cyclictest25-21ksoftirqd/107:38:571
15189992419,3cyclictest25-21ksoftirqd/109:25:121
15189992418,3cyclictest25-21ksoftirqd/108:25:121
15189992318,3cyclictest25-21ksoftirqd/111:55:181
15189992216,4cyclictest25-21ksoftirqd/108:11:061
1519099207,11cyclictest20924-21kworker/2:109:27:142
15189992015,3cyclictest15961-21iostat11:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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