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2026-08-21 - 22:21
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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 all highest latencies:
System rackdslot4.osadl.org (updated Fri Aug 21, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311252205172,22sleep20-21swapper/207:07:452
311212203168,23sleep30-21swapper/307:07:423
310462203170,22sleep10-21swapper/107:06:441
309582203169,23sleep00-21swapper/007:05:340
1882121730,3sleep03160099cyclictest10:00:000
2448421650,6sleep33160399cyclictest09:05:153
153572780,25sleep341-21ksoftirqd/312:00:233
307192550,5sleep030723-21head10:20:260
3160299524,13cyclictest224912cut12:15:172
79462500,2sleep1241ktimersoftd/109:35:221
138491470,2ptp4l0-21swapper/310:50:123
138491430,35ptp4l0-21swapper/307:10:003
3160199422,38cyclictest1303-21runrttasks10:49:231
138491420,0ptp4l401ktimersoftd/312:13:173
138491420,0ptp4l401ktimersoftd/310:26:043
138491410,1ptp4l401ktimersoftd/311:48:323
138491410,0ptp4l401ktimersoftd/311:28:513
138491410,0ptp4l401ktimersoftd/311:10:173
138491410,0ptp4l401ktimersoftd/309:50:113
138491410,0ptp4l401ktimersoftd/309:50:113
31603994035,3cyclictest420-21rs:main3
31601994031,7cyclictest25-21ksoftirqd/107:44:591
138491400,1ptp4l401ktimersoftd/309:40:413
138491400,0ptp4l401ktimersoftd/312:31:553
31602993932,4cyclictest33-21ksoftirqd/210:10:102
138491390,0ptp4l401ktimersoftd/310:02:093
31602993832,4cyclictest33-21ksoftirqd/210:00:002
31601993833,3cyclictest25-21ksoftirqd/109:55:011
31601993833,3cyclictest25-21ksoftirqd/109:55:001
138491380,0ptp4l401ktimersoftd/312:16:323
31602993730,4cyclictest33-21ksoftirqd/211:47:542
31602993730,4cyclictest33-21ksoftirqd/207:54:592
138491370,0ptp4l401ktimersoftd/307:45:133
31602993630,4cyclictest33-21ksoftirqd/211:09:282
31602993630,4cyclictest33-21ksoftirqd/207:32:522
31601993631,3cyclictest25-21ksoftirqd/110:41:591
31601993630,4cyclictest25-21ksoftirqd/111:49:141
31601993630,4cyclictest25-21ksoftirqd/110:07:231
31601993630,4cyclictest25-21ksoftirqd/108:56:481
31601993630,4cyclictest25-21ksoftirqd/108:00:311
31600993630,4cyclictest9-21ksoftirqd/012:15:040
31600993630,4cyclictest9-21ksoftirqd/011:56:470
31600993630,4cyclictest9-21ksoftirqd/011:17:040
31600993630,4cyclictest9-21ksoftirqd/010:36:150
31600993630,4cyclictest9-21ksoftirqd/008:41:380
31600993630,4cyclictest9-21ksoftirqd/008:32:280
31600993630,4cyclictest9-21ksoftirqd/008:32:270
31600993622,5cyclictest9-21ksoftirqd/012:39:470
31603993530,3cyclictest6482-21cron07:25:003
31603993530,3cyclictest6482-21cron07:25:003
31603993530,3cyclictest41-21ksoftirqd/307:50:263
31603993529,4cyclictest41-21ksoftirqd/310:14:373
31603993529,4cyclictest41-21ksoftirqd/309:26:183
31603993529,4cyclictest41-21ksoftirqd/308:50:443
31603993528,5cyclictest41-21ksoftirqd/311:05:063
31602993529,4cyclictest33-21ksoftirqd/212:04:272
31602993529,4cyclictest33-21ksoftirqd/211:43:252
31602993529,4cyclictest33-21ksoftirqd/211:37:192
31602993529,4cyclictest33-21ksoftirqd/210:56:482
31602993529,4cyclictest33-21ksoftirqd/210:41:302
31602993529,4cyclictest33-21ksoftirqd/210:16:392
31602993529,4cyclictest33-21ksoftirqd/209:50:402
31602993529,4cyclictest33-21ksoftirqd/209:50:402
31602993529,4cyclictest33-21ksoftirqd/208:59:532
31602993529,4cyclictest33-21ksoftirqd/207:25:012
31601993529,4cyclictest25-21ksoftirqd/112:22:431
31601993529,4cyclictest25-21ksoftirqd/111:36:501
31601993529,4cyclictest25-21ksoftirqd/111:17:401
31601993529,4cyclictest25-21ksoftirqd/111:07:371
31601993529,4cyclictest25-21ksoftirqd/109:58:301
31601993529,4cyclictest25-21ksoftirqd/109:45:411
31601993529,4cyclictest25-21ksoftirqd/107:16:371
31600993531,3cyclictest9-21ksoftirqd/011:10:560
31600993530,3cyclictest9-21ksoftirqd/010:10:110
31600993530,3cyclictest9-21ksoftirqd/008:00:180
31600993529,4cyclictest9-21ksoftirqd/011:38:250
31600993529,4cyclictest9-21ksoftirqd/010:33:310
31600993529,4cyclictest9-21ksoftirqd/010:33:300
31600993529,4cyclictest9-21ksoftirqd/010:04:050
31600993529,4cyclictest9-21ksoftirqd/007:22:230
31600993529,4cyclictest9-21ksoftirqd/007:22:230
31603993429,3cyclictest41-21ksoftirqd/308:24:143
31603993428,4cyclictest41-21ksoftirqd/312:07:333
31603993428,4cyclictest41-21ksoftirqd/311:59:473
31603993428,4cyclictest41-21ksoftirqd/311:41:583
31603993428,4cyclictest41-21ksoftirqd/310:33:493
31603993428,4cyclictest41-21ksoftirqd/310:33:493
31603993428,4cyclictest41-21ksoftirqd/308:56:093
31603993427,5cyclictest41-21ksoftirqd/307:15:433
31602993428,4cyclictest33-21ksoftirqd/212:11:252
31602993428,4cyclictest33-21ksoftirqd/209:26:122
31602993428,4cyclictest33-21ksoftirqd/209:11:132
31602993428,4cyclictest33-21ksoftirqd/208:48:062
31602993428,4cyclictest33-21ksoftirqd/208:21:332
31602993428,4cyclictest33-21ksoftirqd/208:10:392
31602993428,4cyclictest33-21ksoftirqd/207:20:362
31602993428,4cyclictest33-21ksoftirqd/207:20:352
31602993427,4cyclictest33-21ksoftirqd/210:07:092
31602993427,4cyclictest33-21ksoftirqd/207:45:522
3160299340,2cyclictest0-21swapper/211:18:372
31601993428,4cyclictest25-21ksoftirqd/108:33:411
31601993428,4cyclictest25-21ksoftirqd/108:33:401
31601993428,4cyclictest25-21ksoftirqd/108:17:031
31601993427,5cyclictest25-21ksoftirqd/111:14:351
31601993427,4cyclictest25-21ksoftirqd/108:25:061
31601993427,4cyclictest25-21ksoftirqd/107:26:411
31600993429,3cyclictest9-21ksoftirqd/008:50:110
31600993428,4cyclictest9-21ksoftirqd/011:22:050
31600993428,4cyclictest9-21ksoftirqd/011:00:310
31600993428,4cyclictest9-21ksoftirqd/011:00:310
31600993428,4cyclictest9-21ksoftirqd/009:54:080
31600993428,4cyclictest9-21ksoftirqd/009:54:070
31600993428,4cyclictest9-21ksoftirqd/009:20:500
31600993428,4cyclictest9-21ksoftirqd/008:48:360
31600993428,4cyclictest9-21ksoftirqd/007:57:120
31600993428,4cyclictest9-21ksoftirqd/007:48:100
31600993428,4cyclictest9-21ksoftirqd/007:37:230
31600993427,5cyclictest9-21ksoftirqd/010:49:230
31603993327,4cyclictest41-21ksoftirqd/311:16:343
31603993327,4cyclictest41-21ksoftirqd/311:02:303
31603993327,4cyclictest41-21ksoftirqd/311:02:303
31603993327,4cyclictest41-21ksoftirqd/310:56:563
31603993327,4cyclictest41-21ksoftirqd/310:21:343
31603993327,4cyclictest41-21ksoftirqd/309:32:123
31603993327,4cyclictest41-21ksoftirqd/309:13:183
31603993327,4cyclictest41-21ksoftirqd/307:39:463
31602993328,3cyclictest33-21ksoftirqd/211:04:302
31602993328,3cyclictest33-21ksoftirqd/211:04:302
31602993328,3cyclictest33-21ksoftirqd/209:15:402
31602993327,4cyclictest33-21ksoftirqd/211:21:112
31602993327,4cyclictest33-21ksoftirqd/208:33:502
31602993327,4cyclictest33-21ksoftirqd/208:33:492
31602993326,4cyclictest33-21ksoftirqd/207:40:422
3160299330,19cyclictest27750-21cat08:05:212
31601993327,4cyclictest25-21ksoftirqd/112:39:481
31601993327,4cyclictest25-21ksoftirqd/110:21:201
31601993327,4cyclictest25-21ksoftirqd/108:35:321
31601993327,4cyclictest25-21ksoftirqd/108:22:131
31601993327,3cyclictest21384-21idleruntime-cro12:15:001
31600993327,4cyclictest9-21ksoftirqd/012:31:540
31600993327,4cyclictest9-21ksoftirqd/010:58:430
31600993327,4cyclictest9-21ksoftirqd/010:19:590
31600993327,4cyclictest9-21ksoftirqd/007:54:120
31600993327,4cyclictest9-21ksoftirqd/007:33:450
31600993327,4cyclictest9-21ksoftirqd/007:26:430
31603993226,4cyclictest41-21ksoftirqd/312:39:463
31603993226,4cyclictest41-21ksoftirqd/311:32:183
31603993226,4cyclictest41-21ksoftirqd/310:08:583
31603993226,4cyclictest41-21ksoftirqd/308:30:423
31603993226,4cyclictest41-21ksoftirqd/308:30:413
31602993227,3cyclictest33-21ksoftirqd/212:09:252
31602993227,3cyclictest33-21ksoftirqd/211:29:172
31602993227,3cyclictest33-21ksoftirqd/210:36:052
31602993226,4cyclictest33-21ksoftirqd/211:55:572
31602993226,4cyclictest33-21ksoftirqd/210:51:342
31602993226,4cyclictest33-21ksoftirqd/210:33:132
31602993226,4cyclictest33-21ksoftirqd/210:33:122
31602993226,4cyclictest33-21ksoftirqd/210:23:092
31602993226,4cyclictest33-21ksoftirqd/208:02:412
31602993226,4cyclictest33-21ksoftirqd/207:16:552
31601993227,3cyclictest25-21ksoftirqd/107:49:591
31601993226,4cyclictest25-21ksoftirqd/109:42:561
31600993227,3cyclictest9-21ksoftirqd/012:26:470
31600993227,3cyclictest9-21ksoftirqd/009:15:360
31600993226,4cyclictest9-21ksoftirqd/012:07:460
31600993226,4cyclictest9-21ksoftirqd/011:52:410
31600993226,4cyclictest9-21ksoftirqd/011:07:050
31600993226,3cyclictest9-21ksoftirqd/007:42:290
31603993126,3cyclictest41-21ksoftirqd/312:29:523
31603993126,3cyclictest41-21ksoftirqd/309:17:043
31603993126,3cyclictest41-21ksoftirqd/308:40:563
31603993126,3cyclictest41-21ksoftirqd/308:15:113
31603993125,4cyclictest41-21ksoftirqd/311:21:553
31603993125,4cyclictest41-21ksoftirqd/310:44:453
31603993125,4cyclictest41-21ksoftirqd/307:30:043
31603993125,3cyclictest41-21ksoftirqd/307:41:073
31602993126,3cyclictest33-21ksoftirqd/211:11:102
31602993125,4cyclictest33-21ksoftirqd/210:27:152
31602993125,4cyclictest33-21ksoftirqd/210:04:212
31602993125,4cyclictest33-21ksoftirqd/209:37:002
31602993125,4cyclictest33-21ksoftirqd/207:38:102
31602993125,4cyclictest33-21ksoftirqd/207:11:182
3160299310,2cyclictest23120-21gzip07:55:242
31601993126,3cyclictest25-21ksoftirqd/112:05:001
31601993126,3cyclictest25-21ksoftirqd/108:53:081
31601993125,4cyclictest25-21ksoftirqd/111:43:561
31601993125,4cyclictest25-21ksoftirqd/111:00:351
31601993125,4cyclictest25-21ksoftirqd/111:00:351
31601993125,4cyclictest25-21ksoftirqd/110:39:021
31601993125,4cyclictest25-21ksoftirqd/109:01:371
31601993124,5cyclictest25-21ksoftirqd/110:00:071
31601993123,5cyclictest25-21ksoftirqd/111:25:141
31600993127,3cyclictest9-21ksoftirqd/011:49:550
31600993126,3cyclictest9-21ksoftirqd/008:35:040
31600993125,4cyclictest9-21ksoftirqd/012:12:430
31600993125,4cyclictest9-21ksoftirqd/009:12:230
31600993125,4cyclictest9-21ksoftirqd/008:28:330
31600993125,4cyclictest9-21ksoftirqd/008:24:480
31603993026,2cyclictest138491ptp4l11:35:213
31603993025,3cyclictest41-21ksoftirqd/312:20:423
31603993025,3cyclictest41-21ksoftirqd/307:56:173
31603993024,4cyclictest41-21ksoftirqd/310:45:113
31603993024,4cyclictest41-21ksoftirqd/308:48:593
31603993024,4cyclictest41-21ksoftirqd/308:35:133
31603993024,4cyclictest41-21ksoftirqd/308:26:293
31603993024,4cyclictest41-21ksoftirqd/308:02:223
31602993025,3cyclictest33-21ksoftirqd/208:40:592
31602993024,4cyclictest33-21ksoftirqd/212:38:292
31602993024,4cyclictest33-21ksoftirqd/208:39:562
31602993024,4cyclictest33-21ksoftirqd/208:18:582
31602993024,3cyclictest33-21ksoftirqd/212:34:192
3160299301,26cyclictest32712-21sendmail_mailst09:20:242
31601993025,3cyclictest25-21ksoftirqd/112:30:491
31601993025,3cyclictest25-21ksoftirqd/108:06:581
31601993024,4cyclictest25-21ksoftirqd/111:50:381
31601993024,4cyclictest25-21ksoftirqd/110:26:451
31601993024,4cyclictest25-21ksoftirqd/109:16:081
31601993024,4cyclictest25-21ksoftirqd/107:55:141
31601993024,4cyclictest25-21ksoftirqd/107:32:191
31600993025,3cyclictest9-21ksoftirqd/011:44:030
31600993025,3cyclictest9-21ksoftirqd/009:46:210
31600993025,3cyclictest9-21ksoftirqd/007:10:120
31600993024,4cyclictest9-21ksoftirqd/011:26:190
31600993024,4cyclictest9-21ksoftirqd/010:43:490
31600993024,4cyclictest9-21ksoftirqd/009:44:570
31600993024,4cyclictest9-21ksoftirqd/009:04:440
138491300,0ptp4l401ktimersoftd/309:37:553
31603992924,3cyclictest41-21ksoftirqd/310:39:393
31603992924,3cyclictest41-21ksoftirqd/308:07:033
31603992923,4cyclictest41-21ksoftirqd/308:11:193
31602992924,3cyclictest33-21ksoftirqd/212:22:042
31602992923,4cyclictest33-21ksoftirqd/211:30:582
31601992924,3cyclictest25-21ksoftirqd/109:08:521
31601992924,3cyclictest25-21ksoftirqd/108:49:431
31601992923,4cyclictest25-21ksoftirqd/110:12:251
31600992924,3cyclictest9-21ksoftirqd/010:52:290
31600992923,4cyclictest9-21ksoftirqd/011:30:480
138491290,0ptp4l401ktimersoftd/309:03:013
31603992822,4cyclictest41-21ksoftirqd/311:53:453
31603992822,3cyclictest41-21ksoftirqd/310:15:103
31602992823,3cyclictest33-21ksoftirqd/209:41:382
31602992823,3cyclictest33-21ksoftirqd/208:53:162
3160299281,25cyclictest0-21swapper/208:28:562
31602992810,16cyclictest6158-21cut09:34:592
3160299280,1cyclictest0-21swapper/209:10:012
31601992823,3cyclictest25-21ksoftirqd/111:34:551
31601992822,4cyclictest25-21ksoftirqd/112:09:561
31601992822,4cyclictest25-21ksoftirqd/109:28:591
31601992822,4cyclictest25-21ksoftirqd/107:54:561
31600992823,3cyclictest9-21ksoftirqd/010:28:220
31600992823,3cyclictest9-21ksoftirqd/009:25:120
31600992823,3cyclictest9-21ksoftirqd/009:09:090
31600992823,3cyclictest9-21ksoftirqd/008:13:370
31600992823,3cyclictest9-21ksoftirqd/008:06:160
3160299274,20cyclictest22923-21swap09:00:242
3160299271,25cyclictest0-21swapper/209:47:252
3160299271,23cyclictest9151-21/usr/sbin/munin10:45:212
31601992722,3cyclictest25-21ksoftirqd/112:15:361
31601992722,3cyclictest25-21ksoftirqd/110:15:121
31601992722,3cyclictest25-21ksoftirqd/107:38:261
31601992721,4cyclictest25-21ksoftirqd/111:23:541
31601992720,4cyclictest25-21ksoftirqd/107:12:371
31600992722,3cyclictest9-21ksoftirqd/012:22:020
31600992722,3cyclictest9-21ksoftirqd/012:04:020
31600992722,3cyclictest9-21ksoftirqd/009:31:320
31600992721,4cyclictest9-21ksoftirqd/009:35:180
31600992721,4cyclictest9-21ksoftirqd/007:16:530
31603992620,4cyclictest41-21ksoftirqd/309:58:593
31603992620,4cyclictest41-21ksoftirqd/309:46:033
31603992620,4cyclictest41-21ksoftirqd/309:22:093
31602992621,3cyclictest33-21ksoftirqd/211:51:512
31600992621,3cyclictest9-21ksoftirqd/010:06:070
31600992621,3cyclictest9-21ksoftirqd/008:58:540
31602992520,3cyclictest33-21ksoftirqd/212:25:532
31601992520,3cyclictest25-21ksoftirqd/109:30:361
31601992520,3cyclictest25-21ksoftirqd/109:21:251
31601992520,3cyclictest25-21ksoftirqd/108:10:131
31601992519,4cyclictest25-21ksoftirqd/110:55:581
31601992519,4cyclictest25-21ksoftirqd/110:54:011
31601992518,4cyclictest25-21ksoftirqd/107:23:481
31601992518,4cyclictest25-21ksoftirqd/107:23:481
31601992419,3cyclictest25-21ksoftirqd/109:12:531
31601992419,3cyclictest25-21ksoftirqd/108:42:301
31601992418,4cyclictest25-21ksoftirqd/110:34:111
31601992418,4cyclictest25-21ksoftirqd/110:34:111
31601992318,3cyclictest25-21ksoftirqd/111:56:401
31601991914,3cyclictest25-21ksoftirqd/112:28:561
31600991814,3cyclictest9-21ksoftirqd/008:15:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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