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2026-09-19 - 22:53
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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 Sat Sep 19, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36672206171,23sleep30-21swapper/307:06:503
37782204170,22sleep20-21swapper/207:08:192
37222202168,22sleep10-21swapper/107:07:331
38132200166,22sleep00-21swapper/007:08:450
2411321710,5sleep0420999cyclictest07:50:010
1786821690,6sleep3421299cyclictest07:35:183
47221310,2sleep1421099cyclictest12:25:221
84272670,2sleep30-21swapper/309:25:243
138491660,1ptp4l391rcuc/310:28:423
257912620,5sleep225795-21ptp4l11:05:232
421299576,11cyclictest18682-21chrt10:50:563
138491540,1ptp4l391rcuc/310:15:343
421299536,12cyclictest16427-21chrt10:48:313
421299514,15cyclictest30889-21ps11:15:233
421299505,11cyclictest23453-21switchtime11:00:263
421199487,6cyclictest3316-21date11:25:242
421299461,42cyclictest6828-21cat11:35:003
421199449,5cyclictest33-21ksoftirqd/208:13:372
138491430,0ptp4l401ktimersoftd/310:08:223
138491430,0ptp4l401ktimersoftd/309:43:493
138491430,0ptp4l401ktimersoftd/309:24:403
4210994237,3cyclictest25-21ksoftirqd/111:00:001
138491420,0ptp4l401ktimersoftd/310:58:273
138491420,0ptp4l401ktimersoftd/308:40:003
4211994112,27cyclictest0-21swapper/207:30:232
4212994010,17cyclictest16199-21awk07:30:273
4209993925,5cyclictest9-21ksoftirqd/009:20:590
421299381,5cyclictest0-21swapper/307:50:233
4211993832,4cyclictest33-21ksoftirqd/212:30:482
4210993831,4cyclictest25-21ksoftirqd/109:56:461
4209993832,4cyclictest9-21ksoftirqd/009:31:380
4209993831,3cyclictest9-21ksoftirqd/011:44:250
421299374,10cyclictest0-21swapper/309:38:343
4212993730,4cyclictest41-21ksoftirqd/308:34:013
421199377,5cyclictest8418-21ls10:30:262
4211993731,4cyclictest33-21ksoftirqd/210:43:412
4211993731,4cyclictest33-21ksoftirqd/209:59:202
4211993731,3cyclictest29909-21cut10:10:192
4210993731,4cyclictest25-21ksoftirqd/108:10:111
4210993730,4cyclictest25-21ksoftirqd/109:00:021
421299364,16cyclictest1303-21runrttasks08:08:273
421299363,12cyclictest10926-21cat08:25:253
4212993630,4cyclictest41-21ksoftirqd/312:35:473
4212993629,4cyclictest41-21ksoftirqd/309:32:343
4211993633,2cyclictest311rcuc/210:35:002
4211993630,4cyclictest33-21ksoftirqd/212:22:102
4211993630,4cyclictest33-21ksoftirqd/208:41:342
4211993630,4cyclictest33-21ksoftirqd/208:04:542
4210993631,3cyclictest25-21ksoftirqd/111:00:161
4210993631,3cyclictest25-21ksoftirqd/110:10:121
4210993631,3cyclictest25-21ksoftirqd/108:20:131
4210993630,4cyclictest25-21ksoftirqd/110:38:431
421099361,2cyclictest121rcu_preempt09:20:581
4209993631,3cyclictest9-21ksoftirqd/011:10:200
4209993631,3cyclictest9-21ksoftirqd/010:48:140
4209993630,3cyclictest9-21ksoftirqd/012:15:110
421299353,11cyclictest4074-21cat10:25:003
4212993530,3cyclictest41-21ksoftirqd/311:25:123
4212993529,4cyclictest41-21ksoftirqd/309:57:283
4212993529,4cyclictest41-21ksoftirqd/309:01:173
4212993529,4cyclictest41-21ksoftirqd/307:41:283
4212993528,4cyclictest41-21ksoftirqd/307:17:503
4211993529,4cyclictest33-21ksoftirqd/212:17:362
4211993529,4cyclictest33-21ksoftirqd/209:38:012
4211993528,5cyclictest33-21ksoftirqd/207:47:102
4210993529,4cyclictest25-21ksoftirqd/111:38:201
4210993529,4cyclictest25-21ksoftirqd/111:19:061
4210993529,4cyclictest25-21ksoftirqd/110:24:581
4210993529,4cyclictest25-21ksoftirqd/109:16:101
4210993529,4cyclictest25-21ksoftirqd/109:07:151
4210993529,4cyclictest25-21ksoftirqd/108:40:361
4210993529,4cyclictest25-21ksoftirqd/108:08:471
4210993529,3cyclictest25-21ksoftirqd/109:50:111
4210993528,5cyclictest25-21ksoftirqd/108:18:331
4209993530,3cyclictest9-21ksoftirqd/012:30:110
4209993530,3cyclictest9-21ksoftirqd/011:45:050
4209993529,4cyclictest9-21ksoftirqd/009:10:440
4209993529,4cyclictest9-21ksoftirqd/008:20:130
4209993528,4cyclictest9-21ksoftirqd/011:08:020
421299344,11cyclictest27941-21cat12:15:213
4212993429,3cyclictest41-21ksoftirqd/310:35:573
4212993428,4cyclictest41-21ksoftirqd/307:56:543
4212993428,4cyclictest41-21ksoftirqd/307:47:553
4212993428,4cyclictest41-21ksoftirqd/307:26:413
4212993428,3cyclictest41-21ksoftirqd/309:16:163
421299342,4cyclictest41-21ksoftirqd/312:05:183
4211993430,3cyclictest33-21ksoftirqd/212:25:242
4211993429,3cyclictest33-21ksoftirqd/211:42:062
4211993428,4cyclictest33-21ksoftirqd/211:24:022
4211993428,4cyclictest33-21ksoftirqd/211:15:352
4211993428,4cyclictest33-21ksoftirqd/210:29:572
4211993428,4cyclictest33-21ksoftirqd/209:41:352
4211993428,4cyclictest33-21ksoftirqd/209:33:482
4211993428,4cyclictest33-21ksoftirqd/209:26:462
4211993428,4cyclictest33-21ksoftirqd/207:53:392
4211993428,4cyclictest33-21ksoftirqd/207:40:282
4211993427,4cyclictest33-21ksoftirqd/207:26:392
4210993429,3cyclictest25-21ksoftirqd/110:25:061
4210993429,3cyclictest25-21ksoftirqd/107:15:321
4210993428,4cyclictest25-21ksoftirqd/110:04:131
4210993428,4cyclictest25-21ksoftirqd/109:45:351
4210993428,4cyclictest25-21ksoftirqd/109:29:261
4210993428,4cyclictest25-21ksoftirqd/107:45:551
4210993428,4cyclictest25-21ksoftirqd/107:43:031
4210993428,4cyclictest25-21ksoftirqd/107:36:131
4210993427,4cyclictest25-21ksoftirqd/107:22:051
4209993429,3cyclictest9-21ksoftirqd/011:03:330
4209993429,3cyclictest9-21ksoftirqd/007:39:350
4209993428,4cyclictest9-21ksoftirqd/011:38:190
4209993428,4cyclictest9-21ksoftirqd/009:56:100
4209993428,4cyclictest9-21ksoftirqd/008:50:010
4209993428,4cyclictest9-21ksoftirqd/007:54:540
4209993427,5cyclictest9-21ksoftirqd/008:36:530
4209993427,4cyclictest9-21ksoftirqd/007:25:040
4209993422,4cyclictest9-21ksoftirqd/010:59:190
421299335,16cyclictest14606-21apt-config08:35:003
421299335,11cyclictest17554-21smartctl11:55:183
421299334,17cyclictest15512-21irqstats11:50:193
421299334,10cyclictest3219-21phc2sys-jitter08:10:233
4212993327,4cyclictest41-21ksoftirqd/310:32:443
4212993327,4cyclictest41-21ksoftirqd/310:12:293
4212993327,4cyclictest41-21ksoftirqd/308:45:123
4212993327,4cyclictest41-21ksoftirqd/307:22:273
4212993326,4cyclictest41-21ksoftirqd/309:09:183
421199335,26cyclictest0-21swapper/207:15:222
421199334,27cyclictest0-21swapper/209:00:232
4211993329,3cyclictest33-21ksoftirqd/208:55:282
4211993328,3cyclictest33-21ksoftirqd/208:46:552
4211993327,4cyclictest33-21ksoftirqd/212:12:112
4211993327,4cyclictest33-21ksoftirqd/211:56:222
4211993327,4cyclictest33-21ksoftirqd/208:33:592
4211993325,5cyclictest33-21ksoftirqd/210:06:182
4210993328,3cyclictest25-21ksoftirqd/111:46:011
4210993327,4cyclictest25-21ksoftirqd/111:53:271
4210993327,4cyclictest25-21ksoftirqd/111:27:451
4210993327,4cyclictest25-21ksoftirqd/110:40:351
4210993327,4cyclictest25-21ksoftirqd/110:15:191
4210993327,4cyclictest25-21ksoftirqd/109:43:301
4210993327,4cyclictest25-21ksoftirqd/109:13:011
4210993327,4cyclictest25-21ksoftirqd/108:49:221
4210993327,4cyclictest25-21ksoftirqd/108:33:061
4210993327,4cyclictest25-21ksoftirqd/108:29:571
4210993326,5cyclictest25-21ksoftirqd/112:31:111
4210993326,4cyclictest25-21ksoftirqd/111:09:531
4209993330,2cyclictest9-21ksoftirqd/012:00:000
4209993328,3cyclictest9-21ksoftirqd/008:31:520
4209993327,4cyclictest9-21ksoftirqd/011:23:280
4209993327,4cyclictest9-21ksoftirqd/010:31:190
4209993326,5cyclictest9-21ksoftirqd/008:44:290
421299325,16cyclictest30024-21/usr/sbin/munin12:20:203
421299323,12cyclictest12885-21irqstats10:40:223
4212993227,3cyclictest41-21ksoftirqd/312:10:143
4212993226,4cyclictest41-21ksoftirqd/308:21:533
4211993226,4cyclictest33-21ksoftirqd/209:16:562
4211993226,4cyclictest33-21ksoftirqd/209:13:472
4211993226,4cyclictest33-21ksoftirqd/207:55:112
4211993226,4cyclictest33-21ksoftirqd/207:13:282
4210993226,4cyclictest25-21ksoftirqd/112:12:221
4210993226,4cyclictest25-21ksoftirqd/107:58:041
4210993226,4cyclictest25-21ksoftirqd/107:33:331
4210993226,4cyclictest25-21ksoftirqd/107:27:111
4210993226,3cyclictest25-21ksoftirqd/110:35:001
4209993228,2cyclictest9-21ksoftirqd/008:59:590
4209993227,3cyclictest9-21ksoftirqd/012:14:310
4209993227,3cyclictest9-21ksoftirqd/010:38:050
4209993227,3cyclictest9-21ksoftirqd/008:10:310
4209993226,4cyclictest9-21ksoftirqd/012:22:400
4209993226,4cyclictest9-21ksoftirqd/012:08:400
4209993226,4cyclictest9-21ksoftirqd/010:53:550
4209993226,4cyclictest9-21ksoftirqd/010:12:220
4212993126,3cyclictest41-21ksoftirqd/310:05:013
4212993126,3cyclictest41-21ksoftirqd/309:53:253
4212993126,3cyclictest41-21ksoftirqd/309:48:363
4212993125,4cyclictest41-21ksoftirqd/309:10:113
4211993125,4cyclictest33-21ksoftirqd/210:01:162
4210993126,3cyclictest25-21ksoftirqd/112:35:351
4210993126,3cyclictest25-21ksoftirqd/109:00:001
4210993126,3cyclictest25-21ksoftirqd/107:53:301
4210993124,4cyclictest25-21ksoftirqd/109:33:041
4209993126,3cyclictest9-21ksoftirqd/010:09:490
4209993126,3cyclictest9-21ksoftirqd/009:01:260
4209993126,3cyclictest9-21ksoftirqd/008:25:100
4209993125,4cyclictest9-21ksoftirqd/011:26:590
4209993125,4cyclictest9-21ksoftirqd/009:53:210
4209993125,4cyclictest9-21ksoftirqd/009:47:150
4209993125,4cyclictest9-21ksoftirqd/009:41:120
4209993125,4cyclictest9-21ksoftirqd/009:09:350
4209993125,4cyclictest9-21ksoftirqd/007:16:350
4209993124,5cyclictest9-21ksoftirqd/008:10:010
421299304,17cyclictest0-21swapper/311:48:263
4212993025,3cyclictest41-21ksoftirqd/311:22:583
4211993025,3cyclictest33-21ksoftirqd/211:00:122
4211993024,4cyclictest33-21ksoftirqd/212:09:352
4211993024,4cyclictest33-21ksoftirqd/211:46:352
4211993024,4cyclictest33-21ksoftirqd/211:32:122
4211993024,4cyclictest33-21ksoftirqd/210:18:102
4211993024,4cyclictest33-21ksoftirqd/209:51:222
4211993024,4cyclictest33-21ksoftirqd/209:48:582
4211993024,4cyclictest33-21ksoftirqd/208:25:562
4211993024,4cyclictest33-21ksoftirqd/207:37:152
4210993025,3cyclictest25-21ksoftirqd/111:55:131
4210993025,3cyclictest25-21ksoftirqd/111:22:181
4210993022,5cyclictest25-21ksoftirqd/112:23:491
4209993025,3cyclictest9-21ksoftirqd/012:37:240
4209993025,3cyclictest9-21ksoftirqd/012:25:410
4209993025,3cyclictest9-21ksoftirqd/010:05:000
4209993025,3cyclictest9-21ksoftirqd/009:38:360
4209993025,3cyclictest9-21ksoftirqd/008:51:430
4209993025,3cyclictest9-21ksoftirqd/007:55:040
4209993023,5cyclictest9-21ksoftirqd/011:34:140
4212992923,4cyclictest41-21ksoftirqd/312:34:263
4212992923,4cyclictest41-21ksoftirqd/311:05:483
4212992923,4cyclictest41-21ksoftirqd/308:16:303
4211992926,2cyclictest33-21ksoftirqd/211:37:232
4211992924,3cyclictest33-21ksoftirqd/208:08:122
4211992923,4cyclictest33-21ksoftirqd/212:02:202
4211992923,4cyclictest33-21ksoftirqd/208:35:512
4211992923,4cyclictest33-21ksoftirqd/207:20:052
4210992924,3cyclictest25-21ksoftirqd/112:08:101
4210992923,4cyclictest25-21ksoftirqd/112:18:441
4209992924,3cyclictest9-21ksoftirqd/009:27:240
421299285,6cyclictest0-21swapper/308:00:193
421299283,14cyclictest25635-21ls08:55:223
4212992823,3cyclictest41-21ksoftirqd/311:35:393
4212992822,4cyclictest41-21ksoftirqd/312:26:523
4211992823,3cyclictest33-21ksoftirqd/211:54:312
4211992823,3cyclictest33-21ksoftirqd/209:08:522
4211992822,4cyclictest33-21ksoftirqd/210:54:082
4211992822,4cyclictest33-21ksoftirqd/208:21:432
4210992822,4cyclictest25-21ksoftirqd/108:03:181
4209992823,3cyclictest9-21ksoftirqd/012:03:480
4209992823,3cyclictest9-21ksoftirqd/009:15:380
4209992823,3cyclictest9-21ksoftirqd/007:33:540
4209992823,3cyclictest9-21ksoftirqd/007:21:190
4209992822,4cyclictest9-21ksoftirqd/010:18:390
421299274,10cyclictest0-21swapper/311:44:153
4212992722,3cyclictest41-21ksoftirqd/311:11:473
4211992722,3cyclictest33-21ksoftirqd/211:10:122
4211992721,4cyclictest33-21ksoftirqd/210:21:552
4210992722,3cyclictest25-21ksoftirqd/109:37:121
4209992723,3cyclictest9-21ksoftirqd/010:30:010
4209992722,3cyclictest9-21ksoftirqd/007:40:530
4212992621,3cyclictest41-21ksoftirqd/312:00:573
4211992620,4cyclictest33-21ksoftirqd/210:57:452
421199260,25cyclictest0-21swapper/209:21:532
4210992621,3cyclictest25-21ksoftirqd/108:54:161
4210992619,4cyclictest25-21ksoftirqd/112:00:101
4209992621,3cyclictest9-21ksoftirqd/011:50:250
4209992621,3cyclictest9-21ksoftirqd/010:41:440
4212992518,5cyclictest41-21ksoftirqd/307:10:523
4211992520,3cyclictest33-21ksoftirqd/210:49:332
4211992520,3cyclictest33-21ksoftirqd/208:50:272
4211992519,4cyclictest33-21ksoftirqd/208:19:552
4210992520,3cyclictest25-21ksoftirqd/111:30:221
4209992520,3cyclictest9-21ksoftirqd/007:11:130
4210992419,3cyclictest25-21ksoftirqd/111:10:351
4210992419,3cyclictest25-21ksoftirqd/110:05:131
4210992419,3cyclictest25-21ksoftirqd/107:10:131
4210992418,3cyclictest25-21ksoftirqd/110:45:231
4210992417,5cyclictest25-21ksoftirqd/111:41:491
4209992419,3cyclictest9-21ksoftirqd/011:15:190
138491240,0ptp4l401ktimersoftd/308:50:203
421199233,8cyclictest33-21ksoftirqd/212:38:542
4210992217,3cyclictest25-21ksoftirqd/108:39:551
4209992217,3cyclictest9-21ksoftirqd/008:00:590
4210992016,2cyclictest25-21ksoftirqd/110:50:141
4209992017,2cyclictest9-21ksoftirqd/008:15:190
4209992013,4cyclictest9-21ksoftirqd/010:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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