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2026-07-22 - 16:18
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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 Wed Jul 22, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491227164,51phc2sys0-21swapper/307:07:223
25912204170,22sleep10-21swapper/107:09:021
23912204171,22sleep00-21swapper/007:07:080
26072199165,23sleep20-21swapper/207:09:142
57898920,71rtkit-daemon0-21swapper/307:10:003
123312720,1sleep10-21swapper/112:00:001
139391660,1ptp4l401ktimersoftd/309:43:333
17642650,2sleep10-21swapper/109:20:231
2960996330,6cyclictest9-21ksoftirqd/010:50:000
168802610,2sleep20-21swapper/211:00:172
2960996029,9cyclictest9-21ksoftirqd/010:00:150
2960996028,11cyclictest9-21ksoftirqd/011:25:140
273502590,2sleep10-21swapper/109:05:271
2961995721,5cyclictest25-21ksoftirqd/110:59:061
2961995714,9cyclictest25-21ksoftirqd/111:40:211
2960995733,2cyclictest9-21ksoftirqd/012:30:120
2960995728,10cyclictest9-21ksoftirqd/007:20:130
2960995727,9cyclictest9-21ksoftirqd/011:55:180
139391560,1ptp4l401ktimersoftd/307:56:593
296199555,9cyclictest25-21ksoftirqd/112:15:181
2961995520,3cyclictest25-21ksoftirqd/109:31:311
296099557,8cyclictest9-21ksoftirqd/011:04:590
2960995523,10cyclictest9-21ksoftirqd/010:40:200
296199545,9cyclictest25-21ksoftirqd/110:15:141
2960995424,8cyclictest9-21ksoftirqd/008:25:220
296199535,8cyclictest25-21ksoftirqd/110:50:171
296199535,10cyclictest25-21ksoftirqd/109:39:591
296199533,10cyclictest25-21ksoftirqd/111:20:151
2961995318,6cyclictest25-21ksoftirqd/111:25:141
296099536,8cyclictest9-21ksoftirqd/011:35:000
2960995312,8cyclictest9-21ksoftirqd/008:30:190
296199524,4cyclictest25-21ksoftirqd/108:25:181
296099527,7cyclictest9-21ksoftirqd/012:20:180
296099524,7cyclictest9-21ksoftirqd/009:50:200
296099521,9cyclictest9-21ksoftirqd/007:15:140
2960995218,10cyclictest9-21ksoftirqd/008:00:230
296099521,10cyclictest9-21ksoftirqd/009:35:190
2961995119,4cyclictest25-21ksoftirqd/112:27:201
2961995110,6cyclictest25-21ksoftirqd/112:34:161
296099515,9cyclictest9-21ksoftirqd/007:30:150
296099515,8cyclictest9-21ksoftirqd/009:20:140
296099515,7cyclictest9-21ksoftirqd/007:35:150
296099512,9cyclictest9-21ksoftirqd/009:55:270
2960995122,10cyclictest9-21ksoftirqd/011:20:130
296099510,9cyclictest9-21ksoftirqd/012:00:200
139391510,1ptp4l401ktimersoftd/309:00:153
296199506,8cyclictest25-21ksoftirqd/112:20:251
296099506,7cyclictest9-21ksoftirqd/011:35:130
296099505,9cyclictest9-21ksoftirqd/007:45:130
2960995021,11cyclictest9-21ksoftirqd/007:50:240
2960995019,3cyclictest9-21ksoftirqd/008:05:230
296099501,10cyclictest9-21ksoftirqd/012:30:010
296199496,9cyclictest25-21ksoftirqd/109:50:131
296199495,8cyclictest30933-21cstates09:15:161
296199495,8cyclictest25-21ksoftirqd/110:40:161
296099495,8cyclictest9-21ksoftirqd/009:10:220
296099494,11cyclictest9-21ksoftirqd/012:15:230
2960994931,7cyclictest9-21ksoftirqd/012:35:240
2960994923,10cyclictest9-21ksoftirqd/008:50:010
296099491,9cyclictest9-21ksoftirqd/010:10:210
296099491,10cyclictest9-21ksoftirqd/011:50:230
296099490,9cyclictest9-21ksoftirqd/008:40:000
236882490,1sleep30-21swapper/311:15:133
2961994819,4cyclictest25-21ksoftirqd/107:14:491
296099487,3cyclictest9-21ksoftirqd/008:20:000
296099486,3cyclictest9-21ksoftirqd/009:30:260
296099485,7cyclictest9-21ksoftirqd/012:05:150
2960994837,3cyclictest9-21ksoftirqd/011:15:180
2960994829,11cyclictest9-21ksoftirqd/010:15:130
2960994824,4cyclictest9-21ksoftirqd/010:50:250
2960994822,3cyclictest9-21ksoftirqd/008:40:220
296099481,9cyclictest9-21ksoftirqd/010:20:240
296422470,3sleep3296399cyclictest12:35:133
296199474,10cyclictest25-21ksoftirqd/107:50:001
296199473,8cyclictest25-21ksoftirqd/108:09:281
296199471,6cyclictest241ktimersoftd/109:50:011
296099476,3cyclictest9-21ksoftirqd/011:45:250
296099474,10cyclictest9-21ksoftirqd/007:40:190
296099473,8cyclictest9-21ksoftirqd/010:05:190
296099473,7cyclictest9-21ksoftirqd/009:00:200
296099472,9cyclictest9-21ksoftirqd/009:05:200
296099472,8cyclictest9-21ksoftirqd/010:40:000
296099470,9cyclictest9-21ksoftirqd/011:40:130
296099470,8cyclictest9-21ksoftirqd/012:10:160
296099470,6cyclictest9-21ksoftirqd/011:15:010
296299461,43cyclictest1094-21kworker/2:010:10:142
296199466,2cyclictest25-21ksoftirqd/109:10:191
296199464,7cyclictest25-21ksoftirqd/107:38:481
296199463,8cyclictest25-21ksoftirqd/112:39:541
2961994612,6cyclictest25-21ksoftirqd/110:11:001
296099467,3cyclictest9-21ksoftirqd/007:25:260
296099464,9cyclictest9-21ksoftirqd/008:45:230
296099464,3cyclictest9-21ksoftirqd/009:50:000
2960994636,3cyclictest9-21ksoftirqd/009:15:270
296099462,8cyclictest9-21ksoftirqd/010:35:000
2960994615,10cyclictest9-21ksoftirqd/009:40:180
296099460,5cyclictest23335-21latency_hist09:00:010
296099460,5cyclictest0-21swapper/007:10:170
296199456,9cyclictest25-21ksoftirqd/111:50:201
296199455,7cyclictest25-21ksoftirqd/108:20:141
296199454,9cyclictest25-21ksoftirqd/110:00:011
296199454,6cyclictest25-21ksoftirqd/110:08:101
296199453,8cyclictest25-21ksoftirqd/110:00:191
2961994520,6cyclictest25-21ksoftirqd/111:16:461
296099450,2cyclictest121rcu_preempt10:27:010
296199448,3cyclictest25-21ksoftirqd/111:05:211
296199444,3cyclictest121rcu_preempt08:00:151
296199443,8cyclictest25-21ksoftirqd/108:16:181
296199441,5cyclictest241ktimersoftd/108:40:001
296199440,5cyclictest25-21ksoftirqd/110:45:161
296199440,10cyclictest25-21ksoftirqd/111:45:131
296199440,10cyclictest25-21ksoftirqd/110:39:591
296099444,7cyclictest9-21ksoftirqd/008:10:120
2960994432,3cyclictest9-21ksoftirqd/010:55:250
139391440,1ptp4l401ktimersoftd/309:14:173
296199435,9cyclictest25-21ksoftirqd/109:40:181
296199432,7cyclictest25-21ksoftirqd/107:44:021
296199432,10cyclictest25-21ksoftirqd/112:13:301
296199431,5cyclictest25-21ksoftirqd/108:33:591
2962994213,27cyclictest3742-21kworker/2:208:50:232
296199425,9cyclictest25-21ksoftirqd/107:20:151
296199422,6cyclictest25-21ksoftirqd/110:34:591
296199421,6cyclictest25-21ksoftirqd/108:45:201
296199421,5cyclictest25-21ksoftirqd/110:22:081
296199420,5cyclictest25-21ksoftirqd/109:26:351
296199420,5cyclictest25-21ksoftirqd/107:55:011
296099427,3cyclictest9-21ksoftirqd/009:25:280
139391420,1ptp4l401ktimersoftd/308:33:163
139391420,0ptp4l401ktimersoftd/311:45:213
57898410,7rtkit-daemon0-21swapper/309:39:473
2962994112,27cyclictest0-21swapper/212:35:242
296199415,9cyclictest25-21ksoftirqd/108:10:011
296199414,8cyclictest25-21ksoftirqd/111:10:131
296199410,7cyclictest25-21ksoftirqd/109:02:201
296199410,7cyclictest241ktimersoftd/112:00:201
296199410,5cyclictest25-21ksoftirqd/111:32:111
296199410,5cyclictest25-21ksoftirqd/110:29:461
296199410,5cyclictest25-21ksoftirqd/108:57:301
296199410,5cyclictest25-21ksoftirqd/107:19:511
296099417,2cyclictest9-21ksoftirqd/011:05:250
296199406,8cyclictest25-21ksoftirqd/107:25:131
296199404,10cyclictest25-21ksoftirqd/108:45:011
296199401,5cyclictest25-21ksoftirqd/112:05:571
296199400,5cyclictest25-21ksoftirqd/107:55:321
296199400,5cyclictest25-21ksoftirqd/107:32:031
296199400,37cyclictest241ktimersoftd/108:50:161
296099402,9cyclictest9-21ksoftirqd/007:55:200
296099394,8cyclictest9-21ksoftirqd/008:20:180
2963993830,6cyclictest41-21ksoftirqd/309:25:013
296199384,6cyclictest25-21ksoftirqd/111:35:141
296199380,5cyclictest25-21ksoftirqd/111:02:051
2962993732,3cyclictest33-21ksoftirqd/208:11:332
2962993730,5cyclictest33-21ksoftirqd/209:31:192
2962993631,3cyclictest1308-21sshd07:22:392
2962993630,4cyclictest33-21ksoftirqd/209:56:422
2963993529,4cyclictest41-21ksoftirqd/310:14:043
2963993529,4cyclictest41-21ksoftirqd/309:45:563
2963993529,4cyclictest41-21ksoftirqd/308:28:013
2963993529,4cyclictest41-21ksoftirqd/307:54:083
2963993527,5cyclictest41-21ksoftirqd/312:15:003
2962993529,4cyclictest33-21ksoftirqd/212:12:252
2962993529,4cyclictest33-21ksoftirqd/211:06:032
2962993529,4cyclictest33-21ksoftirqd/207:26:312
2962993529,4cyclictest33-21ksoftirqd/207:17:562
2962993528,5cyclictest33-21ksoftirqd/211:32:222
57898340,2rtkit-daemon0-21swapper/208:38:212
57898340,1rtkit-daemon0-21swapper/208:06:482
2963993429,3cyclictest41-21ksoftirqd/307:25:123
2963993428,4cyclictest41-21ksoftirqd/312:23:543
2963993428,4cyclictest41-21ksoftirqd/312:04:403
2963993428,4cyclictest41-21ksoftirqd/310:53:323
2963993428,4cyclictest41-21ksoftirqd/307:33:303
2963993428,4cyclictest41-21ksoftirqd/307:20:293
296299349,12cyclictest14539-21kworker/2:112:05:252
296299345,28cyclictest0-21swapper/209:15:322
2962993430,3cyclictest33-21ksoftirqd/208:21:252
2962993429,3cyclictest33-21ksoftirqd/210:53:462
2962993428,4cyclictest33-21ksoftirqd/212:20:352
2962993428,4cyclictest33-21ksoftirqd/211:10:592
2962993428,4cyclictest33-21ksoftirqd/210:37:142
2962993428,4cyclictest33-21ksoftirqd/209:21:362
2962993428,4cyclictest33-21ksoftirqd/208:18:412
2962993428,4cyclictest33-21ksoftirqd/207:13:432
2962993428,3cyclictest33-21ksoftirqd/211:50:132
2963993328,3cyclictest41-21ksoftirqd/311:42:173
2963993328,3cyclictest41-21ksoftirqd/308:22:003
2963993327,4cyclictest41-21ksoftirqd/308:10:413
2962993328,3cyclictest33-21ksoftirqd/210:08:422
2962993328,3cyclictest33-21ksoftirqd/207:40:002
2962993327,4cyclictest33-21ksoftirqd/208:31:542
2962993327,4cyclictest33-21ksoftirqd/207:46:532
139391330,0ptp4l401ktimersoftd/308:35:013
139391330,0ptp4l401ktimersoftd/308:05:273
2963993227,3cyclictest41-21ksoftirqd/310:47:263
2963993227,3cyclictest41-21ksoftirqd/310:30:473
2963993227,3cyclictest41-21ksoftirqd/310:09:303
2963993227,3cyclictest41-21ksoftirqd/308:18:403
2963993227,3cyclictest41-21ksoftirqd/307:20:003
2963993226,4cyclictest41-21ksoftirqd/308:49:523
2963993226,3cyclictest41-21ksoftirqd/309:09:593
296299325,26cyclictest0-21swapper/209:40:232
2962993227,3cyclictest33-21ksoftirqd/212:26:572
2962993226,4cyclictest33-21ksoftirqd/211:48:392
2962993226,4cyclictest33-21ksoftirqd/210:48:282
2962993226,4cyclictest33-21ksoftirqd/209:35:402
2962993226,4cyclictest33-21ksoftirqd/207:52:062
2962993226,4cyclictest33-21ksoftirqd/207:31:282
2963993126,3cyclictest41-21ksoftirqd/311:11:393
2963993126,3cyclictest41-21ksoftirqd/310:37:593
2963993126,3cyclictest41-21ksoftirqd/309:32:183
2963993126,3cyclictest41-21ksoftirqd/307:44:493
2963993125,4cyclictest41-21ksoftirqd/312:31:393
2963993125,4cyclictest41-21ksoftirqd/310:16:053
2963993125,4cyclictest41-21ksoftirqd/308:00:583
2962993125,4cyclictest33-21ksoftirqd/212:01:072
2962993125,4cyclictest33-21ksoftirqd/207:41:182
2962993111,19cyclictest0-21swapper/211:35:242
139391310,0ptp4l401ktimersoftd/311:05:233
2963993025,3cyclictest41-21ksoftirqd/311:30:593
2963993024,4cyclictest41-21ksoftirqd/312:28:073
2963993024,4cyclictest41-21ksoftirqd/311:52:403
2963993024,4cyclictest41-21ksoftirqd/311:21:393
2963993024,4cyclictest41-21ksoftirqd/309:51:183
2962993025,3cyclictest33-21ksoftirqd/212:34:392
2962993025,3cyclictest33-21ksoftirqd/210:17:152
2962993024,4cyclictest33-21ksoftirqd/210:29:362
2962993024,4cyclictest33-21ksoftirqd/210:21:412
2962993024,4cyclictest33-21ksoftirqd/209:50:122
2962993024,4cyclictest33-21ksoftirqd/209:47:152
2962993024,4cyclictest33-21ksoftirqd/209:09:052
2962993024,4cyclictest33-21ksoftirqd/208:26:002
1449123025,2sleep3391rcuc/308:40:183
139391300,0ptp4l401ktimersoftd/309:55:263
2963992925,2cyclictest41-21ksoftirqd/309:29:483
2963992924,3cyclictest41-21ksoftirqd/311:56:463
2963992924,3cyclictest41-21ksoftirqd/310:40:383
2963992923,4cyclictest41-21ksoftirqd/310:20:063
2962992924,3cyclictest33-21ksoftirqd/210:56:482
2962992924,3cyclictest33-21ksoftirqd/210:44:012
2962992924,3cyclictest33-21ksoftirqd/210:30:112
2962992924,3cyclictest33-21ksoftirqd/209:28:322
2962992924,3cyclictest33-21ksoftirqd/208:59:242
2962992923,4cyclictest33-21ksoftirqd/211:58:422
2962992923,4cyclictest33-21ksoftirqd/211:28:012
2962992923,4cyclictest33-21ksoftirqd/208:04:342
2962992923,3cyclictest33-21ksoftirqd/208:46:522
296299292,26cyclictest3742-21kworker/2:207:58:532
139391290,0ptp4l401ktimersoftd/312:06:073
2963992823,3cyclictest41-21ksoftirqd/311:25:213
2963992822,4cyclictest41-21ksoftirqd/308:56:053
2963992822,4cyclictest41-21ksoftirqd/307:37:233
2963992821,5cyclictest41-21ksoftirqd/310:25:523
2962992823,3cyclictest33-21ksoftirqd/208:40:532
296299282,24cyclictest4924-21kworker/2:111:42:342
296299282,13cyclictest1094-21kworker/2:011:22:012
139391280,0ptp4l401ktimersoftd/311:04:253
2963992722,3cyclictest41-21ksoftirqd/312:18:493
296299272,24cyclictest18048-21kworker/2:012:16:572
2962992721,4cyclictest33-21ksoftirqd/211:17:302
296299272,13cyclictest3742-21kworker/2:209:12:082
139391270,0ptp4l401ktimersoftd/307:46:393
2963992621,3cyclictest41-21ksoftirqd/311:38:093
2963992620,4cyclictest41-21ksoftirqd/310:57:573
2962992620,3cyclictest33-21ksoftirqd/210:00:432
139391260,1ptp4l401ktimersoftd/310:00:133
139391260,0ptp4l401ktimersoftd/308:54:193
2963992519,4cyclictest41-21ksoftirqd/309:17:443
296299240,23cyclictest3742-21kworker/2:209:02:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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