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2026-04-08 - 00:36
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Tue Apr 07, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117922208175,22sleep20-21swapper/207:09:292
117162206172,22sleep00-21swapper/007:08:300
139591205171,23phc2sys0-21swapper/307:05:563
115272205172,22sleep10-21swapper/107:06:071
2531421640,4sleep01212599cyclictest12:05:170
2531421640,4sleep01212599cyclictest12:05:170
118342161124,13sleep10-21swapper/107:10:011
12127996922,10cyclictest33-21ksoftirqd/210:10:242
12127996832,5cyclictest33-21ksoftirqd/211:20:002
12127996635,3cyclictest33-21ksoftirqd/212:05:192
12127996635,3cyclictest33-21ksoftirqd/212:05:192
12127996632,3cyclictest33-21ksoftirqd/210:15:272
12127996631,4cyclictest33-21ksoftirqd/209:25:012
12127996628,7cyclictest33-21ksoftirqd/207:35:002
12127996532,3cyclictest33-21ksoftirqd/209:50:192
12127996531,8cyclictest33-21ksoftirqd/211:40:172
12127996431,7cyclictest33-21ksoftirqd/210:05:272
12127996431,7cyclictest33-21ksoftirqd/210:00:192
12127996429,5cyclictest33-21ksoftirqd/209:34:592
12127996428,4cyclictest33-21ksoftirqd/207:50:192
12127996427,6cyclictest33-21ksoftirqd/207:25:182
12127996427,5cyclictest33-21ksoftirqd/211:00:012
12127996334,6cyclictest33-21ksoftirqd/211:59:592
12127996332,7cyclictest33-21ksoftirqd/208:25:192
12127996332,6cyclictest33-21ksoftirqd/210:55:002
12127996331,4cyclictest33-21ksoftirqd/209:25:152
12127996330,4cyclictest33-21ksoftirqd/212:30:262
12127996329,6cyclictest33-21ksoftirqd/210:25:122
12127996326,8cyclictest33-21ksoftirqd/207:45:182
12127996230,7cyclictest33-21ksoftirqd/208:05:272
12127996228,8cyclictest33-21ksoftirqd/209:55:172
12127996227,5cyclictest33-21ksoftirqd/211:00:162
12127996227,3cyclictest33-21ksoftirqd/211:45:272
12127996226,6cyclictest33-21ksoftirqd/208:15:182
12127996224,8cyclictest33-21ksoftirqd/207:15:162
12127996130,7cyclictest33-21ksoftirqd/208:40:002
12127996130,3cyclictest33-21ksoftirqd/208:50:232
12127996129,4cyclictest33-21ksoftirqd/207:35:002
12127996128,7cyclictest33-21ksoftirqd/207:10:132
12127996128,4cyclictest33-21ksoftirqd/212:25:152
12127996128,4cyclictest33-21ksoftirqd/210:40:142
12127996127,4cyclictest33-21ksoftirqd/207:55:002
12127996127,4cyclictest33-21ksoftirqd/207:20:242
12127996126,5cyclictest33-21ksoftirqd/209:05:212
12127996125,4cyclictest33-21ksoftirqd/211:30:252
12127996125,4cyclictest33-21ksoftirqd/211:30:252
12127996031,6cyclictest33-21ksoftirqd/211:05:182
12127996029,3cyclictest33-21ksoftirqd/210:45:242
12127996026,4cyclictest33-21ksoftirqd/212:00:002
12127996025,4cyclictest33-21ksoftirqd/209:45:272
12127996025,4cyclictest33-21ksoftirqd/209:35:142
12127996024,4cyclictest33-21ksoftirqd/211:10:152
12127996022,5cyclictest33-21ksoftirqd/208:30:242
12127996022,4cyclictest33-21ksoftirqd/209:05:002
131522590,2sleep10-21swapper/110:30:261
12127995928,3cyclictest33-21ksoftirqd/211:35:182
12127995928,3cyclictest33-21ksoftirqd/210:30:262
12127995925,4cyclictest33-21ksoftirqd/211:25:132
12127995925,4cyclictest33-21ksoftirqd/208:40:262
12127995924,5cyclictest33-21ksoftirqd/207:45:002
12127995919,6cyclictest33-21ksoftirqd/210:35:262
12127995829,6cyclictest33-21ksoftirqd/209:40:182
12127995829,5cyclictest33-21ksoftirqd/211:20:232
12127995825,4cyclictest33-21ksoftirqd/211:55:002
298652570,3sleep00-21swapper/007:45:170
12127995725,6cyclictest33-21ksoftirqd/208:05:002
12127995620,7cyclictest33-21ksoftirqd/212:20:142
262952550,2sleep10-21swapper/111:00:141
12127995523,6cyclictest33-21ksoftirqd/208:45:132
12127995523,4cyclictest33-21ksoftirqd/210:20:132
12127995519,5cyclictest33-21ksoftirqd/212:15:152
12127995518,4cyclictest33-21ksoftirqd/208:55:252
12127995423,6cyclictest33-21ksoftirqd/208:20:222
1212599547,5cyclictest9-21ksoftirqd/009:10:000
139291520,39ptp4l0-21swapper/307:10:013
1212799523,6cyclictest33-21ksoftirqd/212:35:172
12127995224,4cyclictest33-21ksoftirqd/209:10:252
139291510,0ptp4l401ktimersoftd/311:21:573
1212799514,6cyclictest33-21ksoftirqd/208:10:162
1212699518,4cyclictest25-21ksoftirqd/110:05:121
1212799504,5cyclictest33-21ksoftirqd/209:15:212
1212799504,5cyclictest33-21ksoftirqd/209:15:212
12125995034,4cyclictest9-21ksoftirqd/009:30:010
12126994910,8cyclictest25-21ksoftirqd/112:35:141
168312480,1sleep316830-21cat07:20:013
12126994815,11cyclictest25-21ksoftirqd/108:34:591
1212599487,3cyclictest9-21ksoftirqd/009:55:150
1212799473,3cyclictest33-21ksoftirqd/212:10:172
1212699472,42cyclictest29363-21dump-pmu-power10:00:001
1212699467,3cyclictest25-21ksoftirqd/108:00:011
1212699464,2cyclictest121rcu_preempt10:50:241
12126994615,10cyclictest25-21ksoftirqd/108:50:011
1212699461,3cyclictest121rcu_preempt09:30:011
1212699451,9cyclictest25-21ksoftirqd/108:50:191
12126994439,3cyclictest16083-21cron08:25:011
12125994438,4cyclictest30498-21cron11:10:010
1212699438,8cyclictest25-21ksoftirqd/112:20:191
139291420,0ptp4l401ktimersoftd/310:47:483
1212699424,8cyclictest25-21ksoftirqd/107:20:131
139291410,0ptp4l401ktimersoftd/308:47:373
139291410,0ptp4l401ktimersoftd/308:03:473
12126994130,3cyclictest2079-21mailstats11:15:261
1212699411,5cyclictest0-21swapper/111:10:131
12125994135,3cyclictest9-21ksoftirqd/009:30:260
12125994132,3cyclictest9-21ksoftirqd/009:35:160
1212599412,3cyclictest121rcu_preempt07:40:000
1212599412,2cyclictest121rcu_preempt12:25:190
1212599411,3cyclictest9-21ksoftirqd/008:15:270
1212599411,3cyclictest121rcu_preempt10:15:230
139291400,1ptp4l401ktimersoftd/311:42:423
139291400,1ptp4l401ktimersoftd/307:58:243
12128994034,3cyclictest41-21ksoftirqd/311:15:263
12126994037,2cyclictest25-21ksoftirqd/108:20:001
12126994027,3cyclictest25-21ksoftirqd/112:30:191
1212699401,3cyclictest121rcu_preempt07:44:521
1212599400,5cyclictest0-21swapper/012:15:010
12128993933,4cyclictest41-21ksoftirqd/308:06:343
12126993935,2cyclictest25-21ksoftirqd/108:05:001
12126993934,3cyclictest25-21ksoftirqd/109:39:411
1212699393,3cyclictest121rcu_preempt07:50:161
1212699391,3cyclictest121rcu_preempt07:15:471
1212699390,8cyclictest121rcu_preempt10:48:521
12125993935,3cyclictest9-21ksoftirqd/012:00:010
12125993934,3cyclictest9-21ksoftirqd/010:05:010
1212599393,3cyclictest9-21ksoftirqd/010:45:270
12125993930,3cyclictest9-21ksoftirqd/012:15:230
12125993925,5cyclictest9-21ksoftirqd/007:55:200
12125993925,3cyclictest9-21ksoftirqd/009:45:230
12125993925,3cyclictest9-21ksoftirqd/009:15:230
12125993925,3cyclictest9-21ksoftirqd/009:15:230
12125993924,3cyclictest9-21ksoftirqd/010:40:160
12125993923,6cyclictest9-21ksoftirqd/012:35:230
12125993923,5cyclictest9-21ksoftirqd/008:40:230
139291380,1ptp4l401ktimersoftd/310:23:423
12128993832,4cyclictest41-21ksoftirqd/309:16:543
12128993832,4cyclictest41-21ksoftirqd/309:16:543
12126993834,2cyclictest25-21ksoftirqd/109:14:591
12126993833,3cyclictest25-21ksoftirqd/109:19:591
12126993833,3cyclictest25-21ksoftirqd/109:19:591
12126993824,4cyclictest25-21ksoftirqd/112:15:161
1212599384,4cyclictest9-21ksoftirqd/011:15:250
1212599383,4cyclictest9-21ksoftirqd/009:20:190
12125993833,3cyclictest9-21ksoftirqd/012:00:130
12125993831,4cyclictest9-21ksoftirqd/009:50:240
1212599382,9cyclictest9-21ksoftirqd/011:25:190
12125993825,4cyclictest9-21ksoftirqd/009:10:230
12125993825,3cyclictest9-21ksoftirqd/011:40:220
1212599382,4cyclictest9-21ksoftirqd/010:29:590
12125993823,5cyclictest9-21ksoftirqd/010:20:220
12125993823,4cyclictest9-21ksoftirqd/010:10:270
12125993823,3cyclictest9-21ksoftirqd/007:50:130
12125993822,5cyclictest9-21ksoftirqd/007:20:190
1212599381,5cyclictest9-21ksoftirqd/007:29:270
41298370,2rtkit-daemon0-21swapper/310:36:203
12128993732,3cyclictest41-21ksoftirqd/312:25:133
12128993732,3cyclictest41-21ksoftirqd/307:53:543
12128993731,4cyclictest41-21ksoftirqd/310:12:313
1212699375,8cyclictest121rcu_preempt09:32:131
1212699374,3cyclictest121rcu_preempt09:40:191
12126993732,3cyclictest25-21ksoftirqd/111:35:121
12126993732,3cyclictest25-21ksoftirqd/111:25:001
12126993732,3cyclictest25-21ksoftirqd/110:13:291
12126993731,4cyclictest25-21ksoftirqd/109:52:551
12126993731,3cyclictest25-21ksoftirqd/111:25:151
12126993731,3cyclictest25-21ksoftirqd/107:30:011
12126993724,4cyclictest25-21ksoftirqd/107:36:051
1212599379,5cyclictest9-21ksoftirqd/009:40:130
1212599373,3cyclictest9-21ksoftirqd/008:55:000
12125993732,3cyclictest9-21ksoftirqd/011:20:140
12125993731,4cyclictest9-21ksoftirqd/012:20:200
12125993724,4cyclictest9-21ksoftirqd/008:10:250
12125993724,4cyclictest9-21ksoftirqd/007:40:210
12125993723,4cyclictest9-21ksoftirqd/008:20:190
12125993723,3cyclictest9-21ksoftirqd/011:00:190
12125993723,3cyclictest9-21ksoftirqd/008:35:220
12125993722,3cyclictest9-21ksoftirqd/008:00:130
12125993721,3cyclictest9-21ksoftirqd/008:55:180
1212599370,3cyclictest121rcu_preempt07:30:200
12128993631,3cyclictest41-21ksoftirqd/312:39:413
12128993631,3cyclictest41-21ksoftirqd/312:09:123
12128993631,3cyclictest41-21ksoftirqd/312:09:123
12128993630,4cyclictest41-21ksoftirqd/312:19:113
12128993630,4cyclictest41-21ksoftirqd/307:46:163
1212699365,3cyclictest121rcu_preempt12:25:261
1212699365,3cyclictest121rcu_preempt12:10:271
12126993632,3cyclictest25-21ksoftirqd/110:35:281
12126993632,2cyclictest25-21ksoftirqd/111:45:191
12126993632,2cyclictest25-21ksoftirqd/108:40:151
12126993632,2cyclictest25-21ksoftirqd/107:45:141
12126993631,3cyclictest25-21ksoftirqd/110:05:001
12126993631,3cyclictest25-21ksoftirqd/109:50:001
12126993631,3cyclictest25-21ksoftirqd/109:08:541
12126993629,4cyclictest25-21ksoftirqd/111:43:061
1212699361,7cyclictest121rcu_preempt10:20:101
1212699361,3cyclictest121rcu_preempt08:10:251
12125993630,3cyclictest9-21ksoftirqd/010:55:150
12125993624,3cyclictest9-21ksoftirqd/010:30:260
12125993623,3cyclictest9-21ksoftirqd/011:35:220
12125993623,3cyclictest9-21ksoftirqd/011:30:230
12125993623,3cyclictest9-21ksoftirqd/011:30:230
1212599362,2cyclictest121rcu_preempt07:15:000
12125993622,3cyclictest9-21ksoftirqd/012:30:220
12125993622,3cyclictest9-21ksoftirqd/008:05:300
12125993615,4cyclictest9-21ksoftirqd/010:05:200
12128993530,3cyclictest41-21ksoftirqd/309:07:253
12128993530,3cyclictest41-21ksoftirqd/308:16:213
12128993530,3cyclictest41-21ksoftirqd/307:42:113
12128993529,4cyclictest41-21ksoftirqd/312:22:483
12128993529,4cyclictest41-21ksoftirqd/309:53:043
12128993529,4cyclictest41-21ksoftirqd/309:38:573
12128993529,4cyclictest41-21ksoftirqd/309:14:333
1212699355,2cyclictest121rcu_preempt12:00:131
1212699353,2cyclictest121rcu_preempt12:05:161
1212699353,2cyclictest121rcu_preempt12:05:161
12126993530,3cyclictest25-21ksoftirqd/111:50:221
12126993527,5cyclictest25-21ksoftirqd/109:25:001
1212699352,3cyclictest121rcu_preempt11:55:161
1212699352,3cyclictest121rcu_preempt08:55:241
1212699352,30cyclictest9424-21cstates10:25:121
1212699351,8cyclictest121rcu_preempt08:29:011
1212599355,3cyclictest9-21ksoftirqd/009:00:260
12125993531,3cyclictest9-21ksoftirqd/011:50:220
12125993531,2cyclictest111rcuc/011:45:140
12125993530,3cyclictest9-21ksoftirqd/010:35:180
12125993523,3cyclictest9-21ksoftirqd/007:15:230
12125993522,5cyclictest9-21ksoftirqd/010:50:150
139291340,0ptp4l401ktimersoftd/311:58:043
12128993429,3cyclictest41-21ksoftirqd/311:47:223
12128993428,4cyclictest41-21ksoftirqd/310:19:133
12128993428,4cyclictest41-21ksoftirqd/310:06:363
12128993428,4cyclictest41-21ksoftirqd/309:55:453
12128993428,3cyclictest41-21ksoftirqd/308:40:103
1212699345,2cyclictest121rcu_preempt10:40:151
1212699343,3cyclictest121rcu_preempt09:00:131
12126993430,3cyclictest25-21ksoftirqd/110:15:141
12126993429,3cyclictest25-21ksoftirqd/110:59:591
12126993428,3cyclictest25-21ksoftirqd/111:05:231
12126993428,3cyclictest25-21ksoftirqd/107:34:591
12125993420,3cyclictest9-21ksoftirqd/011:10:160
12125993420,3cyclictest9-21ksoftirqd/008:30:160
12128993328,3cyclictest41-21ksoftirqd/312:32:043
12128993328,3cyclictest41-21ksoftirqd/311:50:513
12128993328,3cyclictest41-21ksoftirqd/308:58:333
12128993328,3cyclictest41-21ksoftirqd/308:34:303
12128993327,4cyclictest41-21ksoftirqd/310:50:333
1212699333,3cyclictest121rcu_preempt08:05:151
1212699333,2cyclictest121rcu_preempt08:35:221
1212699331,6cyclictest121rcu_preempt11:30:221
1212699331,6cyclictest121rcu_preempt11:30:221
12128993227,3cyclictest41-21ksoftirqd/312:03:003
12128993227,3cyclictest41-21ksoftirqd/308:53:203
12128993227,3cyclictest41-21ksoftirqd/308:20:013
12128993227,3cyclictest41-21ksoftirqd/307:36:103
12128993227,3cyclictest41-21ksoftirqd/307:25:413
12128993227,3cyclictest41-21ksoftirqd/307:20:413
12125993227,3cyclictest9-21ksoftirqd/008:29:540
139291310,9ptp4l401ktimersoftd/312:11:453
139291310,0ptp4l401ktimersoftd/311:34:313
139291310,0ptp4l401ktimersoftd/311:34:313
12128993126,3cyclictest41-21ksoftirqd/311:37:113
12128993126,3cyclictest41-21ksoftirqd/309:47:193
12128993126,3cyclictest41-21ksoftirqd/308:14:523
12128993125,3cyclictest41-21ksoftirqd/311:00:053
12125993110,5cyclictest9-21ksoftirqd/008:50:010
139291300,8ptp4l401ktimersoftd/309:04:413
139291300,10ptp4l0-21swapper/310:27:323
12128993025,3cyclictest41-21ksoftirqd/311:09:233
12128993025,3cyclictest41-21ksoftirqd/310:43:433
12128993025,3cyclictest41-21ksoftirqd/309:25:093
12128993025,3cyclictest41-21ksoftirqd/308:35:063
12128993024,4cyclictest41-21ksoftirqd/310:04:563
12128993024,4cyclictest41-21ksoftirqd/309:34:003
12128993024,4cyclictest41-21ksoftirqd/307:30:083
12128992924,3cyclictest41-21ksoftirqd/309:41:023
12128992823,3cyclictest41-21ksoftirqd/310:55:583
12128992722,3cyclictest41-21ksoftirqd/310:34:523
12128992722,3cyclictest41-21ksoftirqd/309:22:053
12128992621,3cyclictest41-21ksoftirqd/311:11:273
12128992621,3cyclictest41-21ksoftirqd/308:25:363
12128992519,4cyclictest41-21ksoftirqd/311:26:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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