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2026-06-09 - 21:37
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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 rackdslot3.osadl.org (updated Tue Jun 09, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230165,22phc2sys0-21swapper/307:06:213
22092204171,22sleep00-21swapper/007:05:310
23102203169,22sleep20-21swapper/207:06:422
23972201168,22sleep10-21swapper/107:07:501
892221430,3sleep3291699cyclictest07:20:233
139391910,1ptp4l9078-21users11:50:283
1394918561,16phc2sys0-21swapper/307:10:013
139391690,1ptp4l391rcuc/309:55:503
58472610,2sleep20-21swapper/208:20:262
74852570,2sleep37488-21processes10:40:253
291699571,21cyclictest20465-21/usr/sbin/munin11:10:223
273892560,1sleep00-21swapper/008:00:150
291699550,20cyclictest20740-21/usr/sbin/munin08:55:133
291699550,20cyclictest20740-21/usr/sbin/munin08:55:133
291699530,21cyclictest5961-21/usr/sbin/munin07:15:183
10752480,2sleep11076-21sed09:20:181
17702470,3sleep30-21swapper/311:36:283
291399448,7cyclictest9-21ksoftirqd/011:40:000
139391440,0ptp4l401ktimersoftd/308:07:533
2913994314,7cyclictest9-21ksoftirqd/011:15:260
2913994237,3cyclictest3561-21cron10:35:000
2913994237,3cyclictest3561-21cron10:35:000
139391420,0ptp4l401ktimersoftd/311:40:203
2915994126,3cyclictest33-21ksoftirqd/210:37:142
2914994134,5cyclictest551-21rs:main1
291399410,2cyclictest121rcu_preempt12:30:190
291399404,2cyclictest121rcu_preempt11:40:210
2913994035,2cyclictest9-21ksoftirqd/008:40:000
291399403,3cyclictest121rcu_preempt08:45:270
2913994033,4cyclictest9-21ksoftirqd/012:20:000
291499391,2cyclictest0-21swapper/110:33:441
291499391,2cyclictest0-21swapper/110:33:441
2913993916,2cyclictest9-21ksoftirqd/008:30:180
2914993831,4cyclictest25-21ksoftirqd/108:48:581
291399388,7cyclictest9-21ksoftirqd/007:55:000
291399386,2cyclictest9-21ksoftirqd/010:25:140
291399385,2cyclictest121rcu_preempt10:35:250
291399385,2cyclictest121rcu_preempt08:40:170
291399384,3cyclictest121rcu_preempt11:55:210
291399384,2cyclictest121rcu_preempt09:00:220
2913993833,3cyclictest9-21ksoftirqd/009:30:010
2913993832,3cyclictest9-21ksoftirqd/009:30:250
2913993831,4cyclictest9-21ksoftirqd/008:53:590
2913993829,7cyclictest9-21ksoftirqd/012:30:010
291399382,4cyclictest9-21ksoftirqd/010:10:130
2913993810,4cyclictest9-21ksoftirqd/007:55:270
2913993810,11cyclictest9-21ksoftirqd/010:05:160
291699370,23cyclictest32028-21seq11:34:253
2915993731,4cyclictest33-21ksoftirqd/208:52:282
2915993730,4cyclictest33-21ksoftirqd/209:49:402
291499379,26cyclictest0-21swapper/109:54:541
2914993732,3cyclictest26680-21cron07:59:591
2914993732,3cyclictest25-21ksoftirqd/109:50:011
2914993731,4cyclictest25-21ksoftirqd/108:27:121
2914993731,4cyclictest25-21ksoftirqd/107:42:591
291399374,2cyclictest121rcu_preempt12:10:210
291399374,2cyclictest121rcu_preempt11:30:140
291399374,2cyclictest121rcu_preempt11:20:250
291399374,2cyclictest121rcu_preempt10:00:140
291399374,2cyclictest121rcu_preempt09:10:260
2913993733,2cyclictest9-21ksoftirqd/007:35:250
291399373,2cyclictest121rcu_preempt12:00:260
291399373,2cyclictest121rcu_preempt10:55:180
291399373,2cyclictest121rcu_preempt09:45:130
291399373,2cyclictest121rcu_preempt09:20:280
291399372,3cyclictest121rcu_preempt09:15:240
2916993630,4cyclictest41-21ksoftirqd/309:26:583
291699361,28cyclictest22847-21apt-get11:15:123
2915993630,4cyclictest33-21ksoftirqd/210:26:312
2915993630,4cyclictest33-21ksoftirqd/207:14:322
291399366,11cyclictest9-21ksoftirqd/008:05:190
291399364,7cyclictest121rcu_preempt08:55:140
291399364,7cyclictest121rcu_preempt08:55:130
2913993633,2cyclictest9-21ksoftirqd/007:30:000
291399363,2cyclictest121rcu_preempt11:10:190
291399363,2cyclictest121rcu_preempt07:40:280
2913993631,2cyclictest9-21ksoftirqd/009:05:120
2913993630,3cyclictest9-21ksoftirqd/007:45:140
2913993630,3cyclictest9-21ksoftirqd/007:25:000
291399362,3cyclictest121rcu_preempt11:45:160
291399362,2cyclictest121rcu_preempt12:35:290
291399362,2cyclictest121rcu_preempt11:50:170
291399361,2cyclictest121rcu_preempt08:10:210
2916993530,3cyclictest41-21ksoftirqd/310:00:113
2916993529,4cyclictest41-21ksoftirqd/308:18:273
2916993529,4cyclictest41-21ksoftirqd/307:31:143
2916993529,4cyclictest41-21ksoftirqd/307:31:143
2916993529,3cyclictest41-21ksoftirqd/309:45:193
291699350,19cyclictest105792sleep308:30:263
291599353,2cyclictest121rcu_preempt07:19:342
2915993529,4cyclictest33-21ksoftirqd/209:28:032
2915993529,4cyclictest33-21ksoftirqd/207:44:172
2915993529,3cyclictest33-21ksoftirqd/208:59:512
2915993529,3cyclictest33-21ksoftirqd/208:59:512
2914993529,4cyclictest25-21ksoftirqd/111:46:531
2914993529,4cyclictest25-21ksoftirqd/110:26:061
2914993528,4cyclictest25-21ksoftirqd/108:36:101
291399354,6cyclictest121rcu_preempt12:20:150
291399353,2cyclictest121rcu_preempt11:00:140
291399353,2cyclictest121rcu_preempt11:00:140
291399353,2cyclictest121rcu_preempt08:15:180
2913993530,3cyclictest9-21ksoftirqd/012:10:000
2913993530,3cyclictest9-21ksoftirqd/010:15:130
2913993530,3cyclictest9-21ksoftirqd/009:35:140
2913993530,3cyclictest9-21ksoftirqd/009:35:130
2913993529,3cyclictest9-21ksoftirqd/009:55:200
2913993529,3cyclictest9-21ksoftirqd/008:25:120
291399352,3cyclictest9-21ksoftirqd/008:20:130
291399352,2cyclictest121rcu_preempt07:30:120
291399352,2cyclictest121rcu_preempt07:30:120
291399352,2cyclictest121rcu_preempt07:15:190
291399352,2cyclictest121rcu_preempt07:10:220
291399351,4cyclictest9-21ksoftirqd/009:40:240
2916993428,4cyclictest41-21ksoftirqd/312:24:343
2916993427,4cyclictest41-21ksoftirqd/310:49:583
291699340,19cyclictest0-21swapper/311:26:263
2915993428,4cyclictest33-21ksoftirqd/212:27:432
2915993428,4cyclictest33-21ksoftirqd/212:17:152
2915993428,4cyclictest33-21ksoftirqd/208:09:362
2915993428,4cyclictest33-21ksoftirqd/207:55:002
2914993429,3cyclictest25-21ksoftirqd/110:02:431
2914993429,3cyclictest25-21ksoftirqd/109:27:371
2914993428,4cyclictest25-21ksoftirqd/112:33:541
2914993428,4cyclictest25-21ksoftirqd/111:09:501
2914993428,4cyclictest25-21ksoftirqd/110:14:181
2914993428,4cyclictest25-21ksoftirqd/109:36:001
2914993428,4cyclictest25-21ksoftirqd/109:35:591
2914993427,4cyclictest25-21ksoftirqd/110:37:261
291399343,2cyclictest121rcu_preempt10:50:270
2913993430,3cyclictest9-21ksoftirqd/009:50:130
2913993429,3cyclictest9-21ksoftirqd/010:45:010
291399342,2cyclictest121rcu_preempt10:45:170
291399340,2cyclictest121rcu_preempt11:25:170
139391340,1ptp4l391rcuc/312:19:583
2916993327,4cyclictest41-21ksoftirqd/312:01:523
2916993327,4cyclictest41-21ksoftirqd/310:25:113
2916993327,4cyclictest41-21ksoftirqd/309:54:473
2916993327,4cyclictest41-21ksoftirqd/309:37:063
2916993327,4cyclictest41-21ksoftirqd/309:37:053
2916993327,4cyclictest41-21ksoftirqd/308:04:233
291699331,16cyclictest0-21swapper/309:20:163
291699330,20cyclictest0-21swapper/310:07:493
291699330,19cyclictest0-21swapper/310:55:153
291699330,19cyclictest0-21swapper/310:23:103
291699330,19cyclictest0-21swapper/307:42:273
2915993329,3cyclictest33-21ksoftirqd/208:44:552
2915993328,3cyclictest33-21ksoftirqd/209:53:032
2915993327,4cyclictest33-21ksoftirqd/212:39:252
2915993327,4cyclictest33-21ksoftirqd/211:56:332
2915993327,4cyclictest33-21ksoftirqd/211:08:042
2915993327,4cyclictest33-21ksoftirqd/211:02:142
2915993327,4cyclictest33-21ksoftirqd/211:02:142
2915993327,4cyclictest33-21ksoftirqd/210:22:502
2915993327,4cyclictest33-21ksoftirqd/210:18:252
2914993328,3cyclictest25-21ksoftirqd/109:30:101
2914993328,3cyclictest25-21ksoftirqd/109:13:001
2914993328,3cyclictest25-21ksoftirqd/107:20:111
2914993327,4cyclictest25-21ksoftirqd/111:44:521
2914993327,4cyclictest25-21ksoftirqd/110:49:451
2914993327,4cyclictest25-21ksoftirqd/110:16:591
2914993327,4cyclictest25-21ksoftirqd/109:07:161
2914993327,4cyclictest25-21ksoftirqd/109:03:591
2914993327,4cyclictest25-21ksoftirqd/107:35:571
2914993326,5cyclictest25-21ksoftirqd/111:27:321
2914993326,4cyclictest25-21ksoftirqd/112:12:581
2913993330,2cyclictest9-21ksoftirqd/010:20:200
139391330,0ptp4l401ktimersoftd/308:54:313
2916993228,3cyclictest41-21ksoftirqd/310:15:183
2916993226,4cyclictest41-21ksoftirqd/312:05:403
2916993226,4cyclictest41-21ksoftirqd/307:39:043
291699320,19cyclictest0-21swapper/310:11:343
291699320,19cyclictest0-21swapper/309:40:253
291699320,18cyclictest0-21swapper/308:29:103
2915993227,3cyclictest33-21ksoftirqd/208:48:152
2915993227,3cyclictest33-21ksoftirqd/207:47:282
2915993226,4cyclictest33-21ksoftirqd/212:30:512
2915993226,4cyclictest33-21ksoftirqd/212:20:532
2915993226,4cyclictest33-21ksoftirqd/211:47:222
2915993226,4cyclictest33-21ksoftirqd/211:41:522
2915993226,4cyclictest33-21ksoftirqd/211:27:362
2915993226,4cyclictest33-21ksoftirqd/211:21:592
2915993226,4cyclictest33-21ksoftirqd/210:52:262
2915993226,4cyclictest33-21ksoftirqd/210:01:122
2915993226,4cyclictest33-21ksoftirqd/207:32:562
2915993226,4cyclictest33-21ksoftirqd/207:32:562
2915993218,13cyclictest33-21ksoftirqd/207:40:012
2914993227,3cyclictest25-21ksoftirqd/108:15:121
2914993226,4cyclictest25-21ksoftirqd/111:35:341
2914993226,4cyclictest25-21ksoftirqd/109:16:021
2914993226,4cyclictest25-21ksoftirqd/107:50:121
2914993225,5cyclictest25-21ksoftirqd/109:41:171
2914993214,3cyclictest13335-21phc2sys12:00:241
2914993214,3cyclictest12914-21fschecks_count07:30:151
2914993214,3cyclictest12914-21fschecks_count07:30:151
2913993226,4cyclictest9-21ksoftirqd/011:06:330
2916993126,3cyclictest41-21ksoftirqd/308:10:093
2916993126,3cyclictest41-21ksoftirqd/307:26:163
2916993125,4cyclictest41-21ksoftirqd/311:21:203
2916993125,4cyclictest41-21ksoftirqd/309:17:563
2916993125,3cyclictest41-21ksoftirqd/312:39:283
291699310,17cyclictest0-21swapper/309:10:123
2915993127,2cyclictest33-21ksoftirqd/208:19:592
2915993126,3cyclictest33-21ksoftirqd/212:00:122
2915993126,3cyclictest33-21ksoftirqd/209:02:202
2915993125,4cyclictest33-21ksoftirqd/211:18:582
2915993125,4cyclictest33-21ksoftirqd/210:06:142
2914993126,3cyclictest31430-21cron08:10:011
2914993126,3cyclictest27350-21fschecks_count08:00:151
2914993126,3cyclictest25-21ksoftirqd/108:24:371
2914993125,4cyclictest25-21ksoftirqd/110:24:291
2914993125,4cyclictest25-21ksoftirqd/110:06:241
139391310,1ptp4l401ktimersoftd/308:25:003
2916993026,3cyclictest41-21ksoftirqd/312:10:243
2916993025,3cyclictest41-21ksoftirqd/311:08:283
2916993025,3cyclictest41-21ksoftirqd/310:53:283
2916993025,3cyclictest41-21ksoftirqd/309:01:163
2916993025,3cyclictest41-21ksoftirqd/308:37:083
2916993024,4cyclictest41-21ksoftirqd/311:03:423
2916993024,4cyclictest41-21ksoftirqd/311:03:423
2916993011,16cyclictest2043-21irqrtprio10:30:193
2916993011,16cyclictest2043-21irqrtprio10:30:193
2915993026,3cyclictest33-21ksoftirqd/207:25:182
2915993025,3cyclictest33-21ksoftirqd/210:47:192
2915993025,3cyclictest33-21ksoftirqd/209:19:182
2915993025,3cyclictest33-21ksoftirqd/208:30:292
2915993024,4cyclictest33-21ksoftirqd/211:10:592
2915993024,4cyclictest33-21ksoftirqd/208:13:322
2915993023,5cyclictest33-21ksoftirqd/207:20:262
2914993025,3cyclictest25-21ksoftirqd/112:18:151
2914993025,3cyclictest25-21ksoftirqd/111:21:341
2914993024,4cyclictest25-21ksoftirqd/112:28:211
2914993024,4cyclictest25-21ksoftirqd/111:53:151
2914993024,4cyclictest25-21ksoftirqd/109:57:461
291699299,17cyclictest23480-21ps07:50:233
2916992923,4cyclictest41-21ksoftirqd/307:57:283
2915992925,3cyclictest33-21ksoftirqd/208:04:352
2915992924,3cyclictest33-21ksoftirqd/211:30:092
2915992924,3cyclictest33-21ksoftirqd/208:37:322
2915992923,4cyclictest33-21ksoftirqd/212:09:492
2915992923,4cyclictest33-21ksoftirqd/210:32:002
2915992923,4cyclictest33-21ksoftirqd/210:32:002
2915992923,4cyclictest33-21ksoftirqd/209:40:292
2915992923,4cyclictest33-21ksoftirqd/209:37:202
2915992923,4cyclictest33-21ksoftirqd/209:37:202
2914992924,3cyclictest25-21ksoftirqd/111:01:031
2914992924,3cyclictest25-21ksoftirqd/111:01:031
2914992924,3cyclictest25-21ksoftirqd/110:57:351
2914992923,4cyclictest25-21ksoftirqd/108:32:201
2914992923,4cyclictest25-21ksoftirqd/107:27:311
2916992823,3cyclictest41-21ksoftirqd/310:36:173
2916992823,3cyclictest41-21ksoftirqd/309:33:563
2915992823,3cyclictest33-21ksoftirqd/211:50:522
2915992822,4cyclictest33-21ksoftirqd/210:58:372
2915992822,4cyclictest33-21ksoftirqd/210:40:112
2915992822,3cyclictest33-21ksoftirqd/212:10:142
2914992823,3cyclictest25-21ksoftirqd/108:51:551
2914992823,3cyclictest25-21ksoftirqd/108:44:351
2914992823,3cyclictest25-21ksoftirqd/107:45:341
2914992821,4cyclictest25-21ksoftirqd/110:43:521
2916992722,3cyclictest41-21ksoftirqd/312:27:313
2916992722,3cyclictest41-21ksoftirqd/308:45:013
2916992722,3cyclictest41-21ksoftirqd/307:49:393
2915992722,3cyclictest33-21ksoftirqd/209:56:432
2915992722,3cyclictest33-21ksoftirqd/209:20:112
2915992722,3cyclictest33-21ksoftirqd/208:25:012
2914992722,3cyclictest25-21ksoftirqd/108:11:061
2914992721,4cyclictest25-21ksoftirqd/111:32:501
2915992621,3cyclictest33-21ksoftirqd/209:06:352
2915992620,4cyclictest33-21ksoftirqd/209:12:452
2914992620,4cyclictest25-21ksoftirqd/108:58:291
2914992620,4cyclictest25-21ksoftirqd/108:58:291
291699259,14cyclictest27450-21sed12:30:163
2916992520,3cyclictest41-21ksoftirqd/311:57:113
291699251,21cyclictest25715-21runrttasks09:05:133
2915992521,3cyclictest33-21ksoftirqd/209:30:202
2915992520,3cyclictest33-21ksoftirqd/211:35:572
2915992520,3cyclictest33-21ksoftirqd/210:11:372
2914992520,3cyclictest25-21ksoftirqd/107:14:561
139391250,0ptp4l401ktimersoftd/311:45:143
139391250,0ptp4l401ktimersoftd/308:40:113
2914992418,3cyclictest25-21ksoftirqd/111:17:281
2915992318,3cyclictest33-21ksoftirqd/207:55:262
2914992115,3cyclictest25-21ksoftirqd/111:56:011
2914992114,4cyclictest25-21ksoftirqd/111:10:461
2914992015,3cyclictest25-21ksoftirqd/112:07:221
2914991914,3cyclictest25-21ksoftirqd/110:51:491
2914991913,4cyclictest25-21ksoftirqd/112:24:561
2914991913,3cyclictest25-21ksoftirqd/107:15:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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