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2026-04-03 - 21:46
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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 Fri Apr 03, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40002205170,23sleep10-21swapper/107:09:141
138591205171,23phc2sys0-21swapper/307:05:103
39032201168,22sleep20-21swapper/207:08:062
17752201166,24sleep00-21swapper/007:05:030
138491740,1ptp4l391rcuc/309:30:223
4351995930,7cyclictest9-21ksoftirqd/008:59:590
88672580,2sleep30-21swapper/310:30:243
288882580,3sleep20-21swapper/212:15:262
10722560,2sleep11075-21sendmail_mailqu09:10:241
4351995424,6cyclictest9-21ksoftirqd/009:10:150
4354995326,8cyclictest41-21ksoftirqd/311:30:133
4354995223,7cyclictest41-21ksoftirqd/311:45:003
4354995219,7cyclictest41-21ksoftirqd/309:25:013
4353995232,18cyclictest33-21ksoftirqd/207:17:212
4351995222,7cyclictest9-21ksoftirqd/012:05:150
4351995125,3cyclictest9-21ksoftirqd/011:35:160
4351995123,3cyclictest9-21ksoftirqd/007:30:110
4351995117,6cyclictest9-21ksoftirqd/008:40:010
145332510,2sleep30-21swapper/310:45:143
138491510,0ptp4l391rcuc/307:10:373
435499503,7cyclictest41-21ksoftirqd/311:50:033
435499503,7cyclictest41-21ksoftirqd/310:05:153
4351995021,3cyclictest9-21ksoftirqd/008:15:240
4351995012,5cyclictest9-21ksoftirqd/008:05:160
135191500,2getstats0-21swapper/307:25:273
435499496,7cyclictest41-21ksoftirqd/311:55:183
435499495,9cyclictest41-21ksoftirqd/309:10:003
435499495,8cyclictest41-21ksoftirqd/310:00:133
435499495,6cyclictest41-21ksoftirqd/310:20:003
435499494,9cyclictest41-21ksoftirqd/307:20:253
435499494,7cyclictest41-21ksoftirqd/307:55:013
4354994918,7cyclictest41-21ksoftirqd/308:10:173
435199498,6cyclictest9-21ksoftirqd/012:20:230
4351994920,4cyclictest9-21ksoftirqd/009:15:130
4351994918,5cyclictest9-21ksoftirqd/010:35:220
4351994917,6cyclictest9-21ksoftirqd/009:45:560
4351994917,11cyclictest9-21ksoftirqd/012:30:170
4351994915,3cyclictest9-21ksoftirqd/008:25:270
4351994912,6cyclictest9-21ksoftirqd/009:30:230
435499485,3cyclictest41-21ksoftirqd/307:55:233
435499484,9cyclictest41-21ksoftirqd/309:45:133
435199489,6cyclictest9-21ksoftirqd/007:20:150
4351994815,3cyclictest9-21ksoftirqd/009:50:240
4351994814,4cyclictest9-21ksoftirqd/012:00:130
4351994810,6cyclictest9-21ksoftirqd/010:40:250
4351994810,6cyclictest9-21ksoftirqd/007:50:250
4351994810,5cyclictest9-21ksoftirqd/007:45:230
435499476,6cyclictest41-21ksoftirqd/309:55:013
435499475,7cyclictest41-21ksoftirqd/310:10:143
435499475,7cyclictest41-21ksoftirqd/308:05:163
435499475,6cyclictest41-21ksoftirqd/307:35:163
4351994721,6cyclictest9-21ksoftirqd/012:25:190
4351994716,3cyclictest9-21ksoftirqd/009:05:130
4351994713,7cyclictest9-21ksoftirqd/011:05:220
4351994713,3cyclictest9-21ksoftirqd/010:10:170
4351994711,3cyclictest9-21ksoftirqd/011:00:210
4351994710,5cyclictest9-21ksoftirqd/007:10:200
435499466,6cyclictest41-21ksoftirqd/310:00:013
435499465,9cyclictest41-21ksoftirqd/311:15:003
435499465,9cyclictest41-21ksoftirqd/310:35:143
435499465,8cyclictest41-21ksoftirqd/308:20:123
435499465,7cyclictest41-21ksoftirqd/312:20:133
435499465,7cyclictest41-21ksoftirqd/310:50:163
435499465,7cyclictest41-21ksoftirqd/309:00:243
435499465,7cyclictest41-21ksoftirqd/307:50:013
435499465,7cyclictest41-21ksoftirqd/307:40:153
435499465,6cyclictest41-21ksoftirqd/309:25:123
435499465,5cyclictest0-21swapper/308:40:123
435499464,8cyclictest41-21ksoftirqd/308:15:233
435499464,6cyclictest41-21ksoftirqd/308:35:123
435499464,6cyclictest41-21ksoftirqd/307:30:123
435499463,8cyclictest41-21ksoftirqd/311:05:163
435499463,7cyclictest41-21ksoftirqd/309:35:133
435499463,6cyclictest41-21ksoftirqd/312:35:143
435499463,6cyclictest41-21ksoftirqd/312:15:153
435199469,7cyclictest9-21ksoftirqd/010:25:170
435199469,6cyclictest9-21ksoftirqd/009:25:230
435199469,5cyclictest9-21ksoftirqd/010:55:150
435199468,6cyclictest9-21ksoftirqd/008:50:260
4351994619,7cyclictest9-21ksoftirqd/010:00:000
4351994614,4cyclictest9-21ksoftirqd/011:55:130
4351994614,4cyclictest9-21ksoftirqd/007:55:110
4351994612,3cyclictest9-21ksoftirqd/010:30:220
435499455,7cyclictest41-21ksoftirqd/311:35:123
435499455,7cyclictest41-21ksoftirqd/309:15:123
435499455,6cyclictest41-21ksoftirqd/310:20:263
435499455,3cyclictest41-21ksoftirqd/311:00:143
435499454,8cyclictest41-21ksoftirqd/312:25:203
435499454,7cyclictest41-21ksoftirqd/307:15:113
435499453,7cyclictest41-21ksoftirqd/308:25:163
435499452,7cyclictest41-21ksoftirqd/309:05:163
435199458,6cyclictest9-21ksoftirqd/008:20:260
435199458,5cyclictest9-21ksoftirqd/010:05:240
435199457,6cyclictest9-21ksoftirqd/008:10:170
4351994518,7cyclictest9-21ksoftirqd/010:15:140
4351994517,4cyclictest9-21ksoftirqd/008:00:510
4351994514,3cyclictest9-21ksoftirqd/012:35:110
4351994510,7cyclictest9-21ksoftirqd/011:45:130
4351994510,6cyclictest9-21ksoftirqd/007:40:180
435499445,9cyclictest41-21ksoftirqd/310:55:133
435499445,8cyclictest41-21ksoftirqd/310:40:123
435499444,7cyclictest41-21ksoftirqd/308:50:143
435499444,6cyclictest0-21swapper/311:49:313
435499443,8cyclictest41-21ksoftirqd/308:34:593
435499442,8cyclictest41-21ksoftirqd/311:15:143
435499442,8cyclictest41-21ksoftirqd/311:15:143
435499442,5cyclictest41-21ksoftirqd/312:30:093
4353994427,3cyclictest33-21ksoftirqd/209:37:592
435199449,5cyclictest9-21ksoftirqd/009:40:140
435199448,5cyclictest9-21ksoftirqd/008:30:120
4351994414,6cyclictest9-21ksoftirqd/012:20:000
4351994412,6cyclictest9-21ksoftirqd/011:10:210
4351994411,8cyclictest9-21ksoftirqd/009:35:190
435499436,4cyclictest41-21ksoftirqd/308:05:013
435499435,6cyclictest41-21ksoftirqd/311:25:183
435499435,6cyclictest41-21ksoftirqd/310:25:123
435499434,7cyclictest41-21ksoftirqd/312:00:133
435299432,39cyclictest1303-21runrttasks08:06:351
435199438,5cyclictest9-21ksoftirqd/007:35:150
435199437,6cyclictest9-21ksoftirqd/011:50:150
435199437,5cyclictest9-21ksoftirqd/011:40:240
435199437,5cyclictest9-21ksoftirqd/010:00:140
4351994328,4cyclictest9-21ksoftirqd/008:45:140
4351994311,5cyclictest9-21ksoftirqd/009:00:130
435199430,3cyclictest121rcu_preempt12:10:260
91152420,2sleep20-21swapper/209:25:252
435499421,5cyclictest41-21ksoftirqd/312:14:263
435499421,5cyclictest41-21ksoftirqd/309:40:143
435199427,6cyclictest9-21ksoftirqd/007:15:120
435199427,5cyclictest9-21ksoftirqd/009:20:130
4351994215,6cyclictest9-21ksoftirqd/007:25:230
435499412,7cyclictest41-21ksoftirqd/312:10:013
4352994135,3cyclictest25-21ksoftirqd/107:45:011
4351994136,3cyclictest9-21ksoftirqd/010:50:230
178212410,5sleep217822-21irqrtprio10:50:172
435499404,7cyclictest41-21ksoftirqd/308:45:123
435499404,6cyclictest41-21ksoftirqd/311:20:163
435499404,6cyclictest41-21ksoftirqd/311:20:163
4354994015,7cyclictest41-21ksoftirqd/309:00:003
4351994017,6cyclictest9-21ksoftirqd/011:20:180
4351994017,6cyclictest9-21ksoftirqd/011:20:170
435199400,3cyclictest121rcu_preempt08:40:190
4352993934,3cyclictest25-21ksoftirqd/108:05:001
4352993931,5cyclictest25-21ksoftirqd/107:51:491
435199398,8cyclictest9-21ksoftirqd/011:25:180
4351993927,4cyclictest9-21ksoftirqd/011:30:200
435199391,2cyclictest9-21ksoftirqd/010:45:180
4353993830,5cyclictest33-21ksoftirqd/207:52:012
435299380,36cyclictest0-21swapper/111:11:131
4351993819,3cyclictest9-21ksoftirqd/011:15:190
4351993819,3cyclictest9-21ksoftirqd/011:15:190
435299370,36cyclictest0-21swapper/110:06:231
435199375,5cyclictest9-21ksoftirqd/010:20:170
4353993631,3cyclictest33-21ksoftirqd/208:50:012
4353993630,4cyclictest33-21ksoftirqd/210:09:052
4353993630,4cyclictest33-21ksoftirqd/209:06:232
4353993630,4cyclictest33-21ksoftirqd/208:35:002
4353993629,4cyclictest33-21ksoftirqd/211:38:232
435399361,32cyclictest14874-21diskstats08:35:152
4352993630,4cyclictest25-21ksoftirqd/108:17:081
4352993630,4cyclictest25-21ksoftirqd/107:27:531
4352993629,5cyclictest25-21ksoftirqd/109:21:461
4352993627,7cyclictest25-21ksoftirqd/109:47:341
435299360,34cyclictest0-21swapper/110:22:031
4353993529,4cyclictest33-21ksoftirqd/211:43:332
4353993529,4cyclictest33-21ksoftirqd/211:34:062
4353993529,4cyclictest33-21ksoftirqd/211:10:592
4353993529,4cyclictest33-21ksoftirqd/209:59:422
4353993529,4cyclictest33-21ksoftirqd/209:49:072
4353993529,4cyclictest33-21ksoftirqd/207:26:072
4353993528,4cyclictest33-21ksoftirqd/209:22:002
4352993530,3cyclictest25-21ksoftirqd/110:30:141
4352993530,3cyclictest25-21ksoftirqd/107:30:171
4352993529,4cyclictest25-21ksoftirqd/112:33:461
4352993529,4cyclictest25-21ksoftirqd/111:51:181
4352993529,4cyclictest25-21ksoftirqd/109:31:091
4352993529,4cyclictest25-21ksoftirqd/108:11:061
4352993528,4cyclictest25-21ksoftirqd/110:36:201
4352993523,3cyclictest25-21ksoftirqd/111:03:361
172452350,2sleep10-21swapper/110:50:131
435399348,25cyclictest0-21swapper/211:25:232
4353993429,3cyclictest33-21ksoftirqd/210:41:272
4353993429,3cyclictest33-21ksoftirqd/207:55:112
4353993428,4cyclictest33-21ksoftirqd/211:49:102
4353993428,4cyclictest33-21ksoftirqd/208:40:362
4353993428,4cyclictest33-21ksoftirqd/208:17:312
4353993428,4cyclictest33-21ksoftirqd/207:11:502
4353993427,4cyclictest33-21ksoftirqd/208:58:452
4352993429,3cyclictest25-21ksoftirqd/108:33:591
4352993428,4cyclictest25-21ksoftirqd/109:40:321
4352993428,4cyclictest25-21ksoftirqd/108:43:551
4352993427,4cyclictest25-21ksoftirqd/112:38:241
4352993427,4cyclictest13909-21kworker/1:111:20:121
4352993427,4cyclictest13909-21kworker/1:111:20:121
4352993411,21cyclictest0-21swapper/108:36:131
4353993328,3cyclictest33-21ksoftirqd/212:13:012
4353993328,3cyclictest33-21ksoftirqd/211:20:112
4353993328,3cyclictest33-21ksoftirqd/211:20:102
4353993327,4cyclictest33-21ksoftirqd/211:59:342
4353993327,4cyclictest33-21ksoftirqd/210:11:182
4353993327,4cyclictest33-21ksoftirqd/209:32:232
4353993327,4cyclictest33-21ksoftirqd/208:09:472
4352993328,3cyclictest25-21ksoftirqd/110:20:001
4352993327,4cyclictest25-21ksoftirqd/112:27:131
4352993327,4cyclictest25-21ksoftirqd/112:17:341
4352993327,4cyclictest25-21ksoftirqd/112:14:331
4352993327,4cyclictest25-21ksoftirqd/110:27:541
4352993327,4cyclictest25-21ksoftirqd/110:00:011
4352993327,4cyclictest25-21ksoftirqd/109:09:281
4352993327,4cyclictest25-21ksoftirqd/109:01:331
4352993326,4cyclictest25-21ksoftirqd/112:01:371
4353993227,3cyclictest33-21ksoftirqd/209:40:472
4353993227,3cyclictest33-21ksoftirqd/207:21:102
4353993226,4cyclictest33-21ksoftirqd/212:20:482
4353993226,4cyclictest33-21ksoftirqd/209:11:122
4353993226,4cyclictest33-21ksoftirqd/208:22:592
4353993226,4cyclictest33-21ksoftirqd/207:32:282
4352993227,3cyclictest25-21ksoftirqd/107:11:231
4352993226,4cyclictest25-21ksoftirqd/112:05:541
4352993226,4cyclictest25-21ksoftirqd/111:42:401
4352993226,4cyclictest25-21ksoftirqd/110:40:371
4353993125,4cyclictest33-21ksoftirqd/210:31:332
4353993125,4cyclictest33-21ksoftirqd/209:17:592
4353993125,4cyclictest33-21ksoftirqd/207:41:062
4352993126,3cyclictest25-21ksoftirqd/108:25:051
4352993125,4cyclictest25-21ksoftirqd/111:59:571
4352993125,4cyclictest25-21ksoftirqd/108:20:491
4352993124,4cyclictest25-21ksoftirqd/107:24:581
4353993025,3cyclictest33-21ksoftirqd/211:17:472
4353993025,3cyclictest33-21ksoftirqd/211:17:462
4353993025,3cyclictest33-21ksoftirqd/211:01:142
4353993025,3cyclictest33-21ksoftirqd/209:00:112
4353993024,4cyclictest33-21ksoftirqd/212:01:152
4352993025,3cyclictest25-21ksoftirqd/110:45:111
4352993024,4cyclictest25-21ksoftirqd/111:28:511
4352993024,4cyclictest25-21ksoftirqd/110:02:351
4352993024,3cyclictest25-21ksoftirqd/109:39:591
435299300,28cyclictest0-21swapper/111:31:141
4353992924,3cyclictest33-21ksoftirqd/212:28:162
4353992924,3cyclictest33-21ksoftirqd/211:53:312
4353992924,3cyclictest33-21ksoftirqd/210:59:042
4353992924,3cyclictest33-21ksoftirqd/210:39:302
4353992923,4cyclictest33-21ksoftirqd/212:09:292
4353992923,4cyclictest33-21ksoftirqd/209:52:242
4353992923,4cyclictest33-21ksoftirqd/208:53:192
4352992924,3cyclictest25-21ksoftirqd/109:17:221
4352992923,4cyclictest25-21ksoftirqd/111:45:401
4352992923,4cyclictest25-21ksoftirqd/111:18:371
4352992923,4cyclictest25-21ksoftirqd/111:18:371
4352992923,4cyclictest25-21ksoftirqd/110:13:381
4352992923,4cyclictest25-21ksoftirqd/109:53:251
4353992823,3cyclictest33-21ksoftirqd/210:20:132
4353992823,3cyclictest33-21ksoftirqd/208:28:012
4353992822,4cyclictest33-21ksoftirqd/208:03:262
4352992823,3cyclictest25-21ksoftirqd/108:47:151
4352992822,4cyclictest25-21ksoftirqd/109:25:271
4352992822,4cyclictest25-21ksoftirqd/108:54:271
4352992822,4cyclictest25-21ksoftirqd/107:16:101
4353992722,3cyclictest33-21ksoftirqd/210:01:472
4353992721,4cyclictest33-21ksoftirqd/211:09:432
4353992721,3cyclictest33-21ksoftirqd/210:15:462
4352992722,3cyclictest25-21ksoftirqd/108:55:241
4352992722,3cyclictest25-21ksoftirqd/107:55:291
4352992721,4cyclictest25-21ksoftirqd/110:56:391
4352992721,4cyclictest25-21ksoftirqd/107:47:041
4352992721,4cyclictest25-21ksoftirqd/107:39:211
4353992621,3cyclictest33-21ksoftirqd/207:48:552
4353992621,3cyclictest33-21ksoftirqd/207:38:382
4352992620,4cyclictest25-21ksoftirqd/111:37:511
4353992520,3cyclictest33-21ksoftirqd/212:35:482
4353992520,3cyclictest33-21ksoftirqd/208:14:012
4352992520,3cyclictest25-21ksoftirqd/111:05:121
4353992418,4cyclictest33-21ksoftirqd/210:46:562
4352992419,3cyclictest25-21ksoftirqd/112:20:121
4353992317,3cyclictest33-21ksoftirqd/212:30:232
4353992217,3cyclictest33-21ksoftirqd/210:27:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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