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2026-08-19 - 16:03
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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 rackdslot2.osadl.org (updated Wed Aug 19, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591238170,22phc2sys0-21swapper/307:08:453
293802206172,22sleep00-21swapper/007:07:090
293672205171,22sleep20-21swapper/207:06:592
293662205171,22sleep10-21swapper/107:06:581
1210521590,5sleep22990299cyclictest08:45:192
3166821540,6sleep02990099cyclictest10:35:010
191882670,2sleep20-21swapper/212:20:252
278662620,4sleep30-21swapper/308:10:223
46342610,2sleep02990099cyclictest11:50:230
29903996020,4cyclictest41-21ksoftirqd/311:40:003
29903995821,9cyclictest41-21ksoftirqd/310:15:003
29903995624,3cyclictest41-21ksoftirqd/311:55:003
29903995623,7cyclictest41-21ksoftirqd/311:20:003
29903995516,11cyclictest41-21ksoftirqd/309:25:253
29903995421,7cyclictest41-21ksoftirqd/310:30:143
198662540,1sleep00-21swapper/009:00:210
29903995332,3cyclictest41-21ksoftirqd/307:20:143
29903995325,7cyclictest41-21ksoftirqd/310:55:283
29903995323,7cyclictest41-21ksoftirqd/310:50:223
29903995318,8cyclictest41-21ksoftirqd/310:45:003
29903995121,7cyclictest41-21ksoftirqd/309:15:203
29903995117,7cyclictest41-21ksoftirqd/312:25:243
29903995117,4cyclictest41-21ksoftirqd/310:45:283
29903995114,5cyclictest41-21ksoftirqd/309:10:003
29903995111,10cyclictest41-21ksoftirqd/311:30:243
29903995023,6cyclictest41-21ksoftirqd/307:15:143
29903995022,4cyclictest41-21ksoftirqd/312:10:263
29903995021,7cyclictest41-21ksoftirqd/311:05:003
139291500,0ptp4l401ktimersoftd/311:25:023
29903994920,4cyclictest41-21ksoftirqd/307:40:003
29903994920,3cyclictest41-21ksoftirqd/310:15:203
29903994918,7cyclictest41-21ksoftirqd/309:25:003
29903994918,4cyclictest41-21ksoftirqd/311:55:243
29903994915,8cyclictest41-21ksoftirqd/308:30:013
29903994818,9cyclictest41-21ksoftirqd/309:35:203
29903994818,7cyclictest41-21ksoftirqd/308:55:273
29903994817,6cyclictest41-21ksoftirqd/307:30:013
29903994817,4cyclictest41-21ksoftirqd/308:05:203
29902994843,3cyclictest391-21sh09:30:012
2990099480,45cyclictest19843-21cron12:25:000
2990399476,7cyclictest41-21ksoftirqd/310:25:243
29903994720,6cyclictest41-21ksoftirqd/308:30:183
29903994715,4cyclictest41-21ksoftirqd/307:10:193
29903994619,7cyclictest41-21ksoftirqd/311:05:233
29903994615,4cyclictest41-21ksoftirqd/312:20:203
29903994615,4cyclictest41-21ksoftirqd/308:20:433
29903994611,4cyclictest41-21ksoftirqd/309:45:163
29903994516,3cyclictest41-21ksoftirqd/308:00:273
29903994515,6cyclictest41-21ksoftirqd/309:55:003
29903994511,11cyclictest41-21ksoftirqd/310:00:193
2990399449,7cyclictest41-21ksoftirqd/312:05:133
29903994412,7cyclictest41-21ksoftirqd/309:55:253
29901994437,4cyclictest2024-21cron07:19:591
2990399438,4cyclictest41-21ksoftirqd/312:00:183
2990399437,4cyclictest41-21ksoftirqd/312:30:153
29903994331,4cyclictest41-21ksoftirqd/309:45:003
29903994316,3cyclictest41-21ksoftirqd/311:11:553
29903994315,6cyclictest41-21ksoftirqd/307:30:263
29903994310,7cyclictest41-21ksoftirqd/309:10:253
2990299431,39cyclictest2266-21grep10:40:152
2990399428,7cyclictest41-21ksoftirqd/312:15:163
29903994236,3cyclictest41-21ksoftirqd/311:40:253
29903994236,3cyclictest41-21ksoftirqd/307:55:013
29903994235,4cyclictest41-21ksoftirqd/312:35:223
2990399423,3cyclictest121rcu_preempt08:15:143
29903994231,9cyclictest41-21ksoftirqd/308:45:203
29903994214,3cyclictest41-21ksoftirqd/309:33:523
29903994210,9cyclictest41-21ksoftirqd/311:20:143
2990399418,7cyclictest41-21ksoftirqd/311:45:113
2990399413,3cyclictest121rcu_preempt07:45:003
2990399413,3cyclictest121rcu_preempt07:44:593
29903994113,7cyclictest41-21ksoftirqd/310:20:133
29903994110,7cyclictest41-21ksoftirqd/309:05:003
29901994137,2cyclictest25-21ksoftirqd/108:40:001
29901994134,4cyclictest25-21ksoftirqd/107:20:121
29900994135,3cyclictest9-21ksoftirqd/008:00:010
29903994036,3cyclictest41-21ksoftirqd/307:50:013
29903994035,3cyclictest41-21ksoftirqd/310:08:273
41298390,1rtkit-daemon0-21swapper/107:43:471
41298390,1rtkit-daemon0-21swapper/107:43:471
2990399399,9cyclictest41-21ksoftirqd/308:50:173
29903993934,3cyclictest41-21ksoftirqd/310:40:003
2990399390,2cyclictest121rcu_preempt08:45:003
29902993934,3cyclictest33-21ksoftirqd/208:18:152
29902993933,4cyclictest33-21ksoftirqd/211:01:592
29901993934,3cyclictest25-21ksoftirqd/111:00:001
29901993934,3cyclictest25-21ksoftirqd/108:00:011
29901993933,3cyclictest25-21ksoftirqd/111:40:001
29902993831,5cyclictest33-21ksoftirqd/212:37:552
29901993832,4cyclictest25-21ksoftirqd/110:54:281
29901993831,4cyclictest25-21ksoftirqd/109:17:011
29900993832,3cyclictest9-21ksoftirqd/011:05:010
41298370,6rtkit-daemon0-21swapper/210:47:572
2990399379,4cyclictest41-21ksoftirqd/308:35:253
29903993731,3cyclictest41-21ksoftirqd/307:55:133
29902993732,3cyclictest33-21ksoftirqd/208:55:122
29902993731,4cyclictest33-21ksoftirqd/212:30:052
29902993731,4cyclictest33-21ksoftirqd/211:27:142
29902993731,4cyclictest33-21ksoftirqd/211:22:092
29902993731,4cyclictest33-21ksoftirqd/211:10:132
29901993733,2cyclictest25-21ksoftirqd/112:20:001
29901993732,3cyclictest25-21ksoftirqd/108:25:191
29901993732,3cyclictest25-21ksoftirqd/108:10:011
29901993726,9cyclictest25-21ksoftirqd/110:25:171
29900993732,3cyclictest9-21ksoftirqd/012:30:000
29900993732,3cyclictest9-21ksoftirqd/008:45:000
29900993732,3cyclictest9-21ksoftirqd/008:25:200
29900993731,4cyclictest9-21ksoftirqd/009:55:090
29900993731,3cyclictest9-21ksoftirqd/010:55:000
29900993731,3cyclictest9-21ksoftirqd/007:45:010
29900993731,3cyclictest9-21ksoftirqd/007:45:010
29900993730,4cyclictest9-21ksoftirqd/012:00:010
29900993730,4cyclictest9-21ksoftirqd/007:45:070
29902993631,3cyclictest33-21ksoftirqd/208:10:002
29902993630,4cyclictest33-21ksoftirqd/212:10:472
29902993630,4cyclictest33-21ksoftirqd/210:14:562
29902993630,4cyclictest33-21ksoftirqd/209:43:592
29901993631,3cyclictest25-21ksoftirqd/111:14:591
29901993631,3cyclictest25-21ksoftirqd/111:01:331
29901993631,3cyclictest25-21ksoftirqd/108:30:191
29901993631,3cyclictest25-21ksoftirqd/107:35:001
29901993630,4cyclictest25-21ksoftirqd/109:55:201
29901993630,3cyclictest28834-21latency_hist08:15:001
29900993631,3cyclictest9-21ksoftirqd/010:45:150
29900993631,3cyclictest9-21ksoftirqd/010:09:590
29900993630,4cyclictest9-21ksoftirqd/012:11:250
29900993630,4cyclictest9-21ksoftirqd/009:26:570
29900993630,4cyclictest9-21ksoftirqd/008:14:240
29900993630,4cyclictest9-21ksoftirqd/007:16:550
29902993530,3cyclictest33-21ksoftirqd/211:41:232
29902993530,3cyclictest33-21ksoftirqd/210:00:012
29902993530,3cyclictest33-21ksoftirqd/209:04:592
29902993530,3cyclictest33-21ksoftirqd/207:38:422
29902993529,4cyclictest33-21ksoftirqd/209:17:352
29902993529,4cyclictest33-21ksoftirqd/208:41:542
29902993529,4cyclictest33-21ksoftirqd/208:23:172
29902993528,5cyclictest33-21ksoftirqd/207:45:002
29902993528,5cyclictest33-21ksoftirqd/207:45:002
29901993531,2cyclictest25-21ksoftirqd/109:40:001
29901993531,2cyclictest25-21ksoftirqd/109:25:201
29901993531,2cyclictest25-21ksoftirqd/109:20:281
29901993531,2cyclictest25-21ksoftirqd/107:40:001
29901993530,3cyclictest25-21ksoftirqd/112:35:001
29901993530,3cyclictest25-21ksoftirqd/112:25:011
29901993530,3cyclictest25-21ksoftirqd/111:55:141
29901993530,3cyclictest25-21ksoftirqd/111:45:091
29901993530,3cyclictest25-21ksoftirqd/110:20:011
29901993530,3cyclictest25-21ksoftirqd/109:00:001
29901993530,3cyclictest25-21ksoftirqd/108:45:131
29901993530,3cyclictest25-21ksoftirqd/108:43:291
29901993529,4cyclictest25-21ksoftirqd/112:05:001
29901993529,4cyclictest25-21ksoftirqd/111:28:331
29901993529,4cyclictest25-21ksoftirqd/108:15:401
29900993531,3cyclictest9-21ksoftirqd/008:20:010
29900993530,3cyclictest9-21ksoftirqd/010:26:160
29900993529,4cyclictest9-21ksoftirqd/011:21:380
29900993529,4cyclictest9-21ksoftirqd/010:18:150
29900993529,4cyclictest9-21ksoftirqd/007:28:060
29900993529,3cyclictest9-21ksoftirqd/009:10:130
29900993528,4cyclictest9-21ksoftirqd/011:40:040
275522350,1sleep10-21swapper/111:30:251
41298340,10rtkit-daemon2360-21packagekitd10:32:031
29902993429,3cyclictest33-21ksoftirqd/209:49:262
29902993429,3cyclictest33-21ksoftirqd/209:36:152
29902993428,4cyclictest33-21ksoftirqd/212:00:402
29902993428,4cyclictest33-21ksoftirqd/210:55:562
29902993427,4cyclictest33-21ksoftirqd/209:31:082
29902993427,4cyclictest33-21ksoftirqd/207:55:122
29901993430,3cyclictest25-21ksoftirqd/111:55:001
29901993429,3cyclictest25-21ksoftirqd/111:40:141
29901993428,4cyclictest25-21ksoftirqd/110:10:391
29901993427,4cyclictest25-21ksoftirqd/112:35:191
29900993430,2cyclictest9-21ksoftirqd/008:55:010
29900993429,3cyclictest9-21ksoftirqd/011:16:280
29900993429,3cyclictest9-21ksoftirqd/009:49:270
29900993429,3cyclictest9-21ksoftirqd/009:40:180
29900993429,3cyclictest9-21ksoftirqd/009:20:120
29900993429,3cyclictest9-21ksoftirqd/008:55:120
29900993428,4cyclictest9-21ksoftirqd/011:29:170
29900993428,4cyclictest9-21ksoftirqd/011:13:530
29902993329,3cyclictest33-21ksoftirqd/210:08:262
29902993328,3cyclictest33-21ksoftirqd/209:23:092
29902993328,3cyclictest33-21ksoftirqd/208:10:032
29902993327,4cyclictest33-21ksoftirqd/211:46:322
29902993327,4cyclictest33-21ksoftirqd/210:22:192
29902993327,4cyclictest33-21ksoftirqd/208:01:412
29901993328,3cyclictest25-21ksoftirqd/110:43:121
29901993328,3cyclictest25-21ksoftirqd/110:23:551
29901993328,3cyclictest25-21ksoftirqd/107:30:011
29901993327,4cyclictest25-21ksoftirqd/110:06:421
29900993329,2cyclictest9-21ksoftirqd/010:20:190
29900993329,2cyclictest9-21ksoftirqd/010:10:180
29900993328,3cyclictest9-21ksoftirqd/012:15:210
29900993328,3cyclictest9-21ksoftirqd/012:07:160
29900993328,3cyclictest9-21ksoftirqd/012:04:060
29900993328,3cyclictest9-21ksoftirqd/011:36:150
29900993328,3cyclictest9-21ksoftirqd/010:00:200
29900993328,3cyclictest9-21ksoftirqd/008:48:340
29900993328,3cyclictest9-21ksoftirqd/008:05:190
29900993327,4cyclictest9-21ksoftirqd/007:54:460
29902993227,3cyclictest33-21ksoftirqd/210:34:472
29902993227,3cyclictest33-21ksoftirqd/210:29:342
29902993226,4cyclictest33-21ksoftirqd/212:19:452
29902993226,4cyclictest33-21ksoftirqd/211:50:332
29902993226,4cyclictest33-21ksoftirqd/211:38:142
29902993226,4cyclictest33-21ksoftirqd/209:10:372
29902993226,4cyclictest33-21ksoftirqd/208:35:352
29902993226,4cyclictest33-21ksoftirqd/207:28:412
29901993228,2cyclictest25-21ksoftirqd/109:15:001
29901993227,3cyclictest25-21ksoftirqd/112:05:181
29901993227,3cyclictest25-21ksoftirqd/111:20:121
29901993227,3cyclictest25-21ksoftirqd/109:43:231
29901993227,3cyclictest25-21ksoftirqd/108:50:141
29901993227,2cyclictest25-21ksoftirqd/109:05:211
29901993226,4cyclictest25-21ksoftirqd/111:19:511
29901993226,4cyclictest25-21ksoftirqd/107:54:431
29900993227,3cyclictest9-21ksoftirqd/012:33:230
29900993227,3cyclictest9-21ksoftirqd/009:34:080
29900993227,3cyclictest9-21ksoftirqd/008:30:130
29900993227,3cyclictest9-21ksoftirqd/007:10:130
29900993226,4cyclictest9-21ksoftirqd/011:30:370
29900993226,4cyclictest9-21ksoftirqd/009:15:330
29900993226,4cyclictest9-21ksoftirqd/007:30:070
29900993226,4cyclictest9-21ksoftirqd/007:21:410
29902993125,4cyclictest33-21ksoftirqd/211:05:402
29902993125,3cyclictest33-21ksoftirqd/210:51:582
29901993126,3cyclictest25-21ksoftirqd/111:10:001
29901993126,3cyclictest25-21ksoftirqd/110:02:491
29901993126,3cyclictest25-21ksoftirqd/109:46:281
29901993126,3cyclictest25-21ksoftirqd/108:23:141
29901993125,4cyclictest25-21ksoftirqd/109:51:041
29901993125,4cyclictest25-21ksoftirqd/109:30:131
29901993125,4cyclictest25-21ksoftirqd/107:48:481
29901993120,9cyclictest25-21ksoftirqd/108:00:261
29900993126,3cyclictest9-21ksoftirqd/008:04:320
29900993125,4cyclictest9-21ksoftirqd/010:59:270
29902993025,3cyclictest33-21ksoftirqd/211:56:232
29902993025,3cyclictest33-21ksoftirqd/210:36:312
29902993025,3cyclictest33-21ksoftirqd/207:10:282
29902993024,4cyclictest33-21ksoftirqd/211:30:482
29901993026,3cyclictest25-21ksoftirqd/112:25:201
29901993025,3cyclictest25-21ksoftirqd/110:37:271
29901993025,3cyclictest25-21ksoftirqd/109:04:481
29900993025,3cyclictest9-21ksoftirqd/009:50:170
29900993025,3cyclictest9-21ksoftirqd/008:20:110
29900993024,4cyclictest9-21ksoftirqd/010:40:420
29902992924,3cyclictest33-21ksoftirqd/210:02:342
29902992924,3cyclictest33-21ksoftirqd/207:48:262
29902992924,3cyclictest33-21ksoftirqd/207:20:472
29902992923,4cyclictest33-21ksoftirqd/207:15:252
29902992923,3cyclictest33-21ksoftirqd/207:50:112
29901992924,3cyclictest25-21ksoftirqd/112:13:021
29900992924,3cyclictest9-21ksoftirqd/012:36:410
29900992924,3cyclictest9-21ksoftirqd/009:39:320
29900992924,3cyclictest9-21ksoftirqd/007:38:160
29900992923,4cyclictest9-21ksoftirqd/008:36:330
29902992823,3cyclictest33-21ksoftirqd/210:19:492
29902992823,3cyclictest33-21ksoftirqd/209:51:492
29902992823,3cyclictest33-21ksoftirqd/208:53:292
29902992823,3cyclictest33-21ksoftirqd/208:32:242
29902992822,4cyclictest33-21ksoftirqd/211:17:272
29901992823,3cyclictest25-21ksoftirqd/110:49:261
29900992823,3cyclictest9-21ksoftirqd/011:46:420
29900992823,3cyclictest9-21ksoftirqd/011:09:510
29902992721,4cyclictest33-21ksoftirqd/212:07:502
29901992722,3cyclictest25-21ksoftirqd/107:15:001
29902992621,3cyclictest33-21ksoftirqd/209:09:332
29902992621,3cyclictest33-21ksoftirqd/208:25:572
29900992621,3cyclictest9-21ksoftirqd/009:08:210
29902992519,4cyclictest33-21ksoftirqd/212:29:042
29900992520,2cyclictest9-21ksoftirqd/010:39:590
29902991712,3cyclictest7871-21if_enp4s007:30:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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