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2026-09-11 - 23:53
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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 376 highest latencies:
System rackdslot2.osadl.org (updated Fri Sep 11, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175162242196,37sleep20-21swapper/207:06:592
139591213169,33phc2sys0-21swapper/307:07:303
175102209175,22sleep10-21swapper/107:06:531
174522205170,23sleep00-21swapper/007:06:090
1858621720,3sleep31805299cyclictest07:10:163
41298960,78rtkit-daemon0-21swapper/207:10:012
139291620,1ptp4l401ktimersoftd/309:00:253
45772570,6sleep01804999cyclictest08:55:190
88432530,2sleep10-21swapper/107:55:271
139291520,1ptp4l401ktimersoftd/307:50:543
1805099511,2cyclictest0-21swapper/112:20:251
18050994912,35cyclictest0-21swapper/111:48:461
18051994629,16cyclictest33-21ksoftirqd/209:45:002
18051994431,11cyclictest33-21ksoftirqd/212:39:352
1805099431,2cyclictest0-21swapper/108:31:451
1805099431,2cyclictest0-21swapper/108:31:451
139291430,1ptp4l401ktimersoftd/309:20:303
139291420,0ptp4l401ktimersoftd/310:10:283
139291420,0ptp4l401ktimersoftd/308:34:573
139291420,0ptp4l401ktimersoftd/308:34:573
1805099411,38cyclictest0-21swapper/111:11:351
18049994136,3cyclictest9-21ksoftirqd/010:40:010
18049994135,3cyclictest9-21ksoftirqd/008:30:000
139291410,1ptp4l401ktimersoftd/311:42:573
18050994034,3cyclictest25-21ksoftirqd/108:10:011
18049994033,3cyclictest9-21ksoftirqd/008:15:000
18050993933,4cyclictest25-21ksoftirqd/110:17:251
18049993934,3cyclictest9-21ksoftirqd/012:00:000
18049993933,3cyclictest9-21ksoftirqd/011:00:010
18049993932,4cyclictest9-21ksoftirqd/012:26:220
139291390,1ptp4l401ktimersoftd/311:59:593
139291390,0ptp4l401ktimersoftd/307:27:163
18052993832,4cyclictest41-21ksoftirqd/311:32:043
18052993832,4cyclictest41-21ksoftirqd/310:35:483
18052993832,3cyclictest41-21ksoftirqd/312:30:173
18052993823,5cyclictest41-21ksoftirqd/311:25:103
18051993832,4cyclictest33-21ksoftirqd/211:41:062
18051993832,4cyclictest33-21ksoftirqd/211:35:122
18051993832,4cyclictest33-21ksoftirqd/211:28:582
18051993832,4cyclictest33-21ksoftirqd/209:16:212
18051993832,4cyclictest33-21ksoftirqd/208:16:022
18050993832,4cyclictest25-21ksoftirqd/111:01:091
18050993832,4cyclictest25-21ksoftirqd/110:24:111
18050993832,3cyclictest25-21ksoftirqd/108:25:101
18052993732,3cyclictest41-21ksoftirqd/310:40:533
18052993732,3cyclictest41-21ksoftirqd/308:52:553
18052993731,4cyclictest41-21ksoftirqd/312:06:393
18052993731,4cyclictest41-21ksoftirqd/310:34:483
18052993731,4cyclictest41-21ksoftirqd/309:52:393
18052993731,4cyclictest41-21ksoftirqd/309:15:523
18052993731,4cyclictest41-21ksoftirqd/309:12:153
18051993731,4cyclictest33-21ksoftirqd/209:37:582
18051993731,4cyclictest33-21ksoftirqd/208:33:042
18051993731,4cyclictest33-21ksoftirqd/208:33:042
1805199371,3cyclictest131rcu_sched11:05:002
18050993731,4cyclictest25-21ksoftirqd/112:37:051
18050993731,4cyclictest25-21ksoftirqd/111:08:191
18050993731,4cyclictest25-21ksoftirqd/109:09:411
18050993730,5cyclictest25-21ksoftirqd/107:10:541
18049993733,2cyclictest9-21ksoftirqd/010:00:010
18049993732,3cyclictest9-21ksoftirqd/009:40:000
18049993731,4cyclictest9-21ksoftirqd/010:10:240
18049993731,3cyclictest9-21ksoftirqd/011:40:010
18049993731,3cyclictest9-21ksoftirqd/011:25:000
18049993730,4cyclictest9-21ksoftirqd/011:46:300
18049993730,3cyclictest9-21ksoftirqd/009:50:240
18049993730,3cyclictest9-21ksoftirqd/007:55:200
139291370,0ptp4l401ktimersoftd/310:15:183
18052993631,3cyclictest41-21ksoftirqd/307:15:263
18052993630,4cyclictest41-21ksoftirqd/311:16:483
18052993630,4cyclictest41-21ksoftirqd/310:29:303
18052993630,4cyclictest41-21ksoftirqd/309:32:463
18052993630,4cyclictest41-21ksoftirqd/308:11:273
18051993631,3cyclictest33-21ksoftirqd/212:20:112
18051993630,4cyclictest33-21ksoftirqd/212:31:132
18051993630,4cyclictest33-21ksoftirqd/210:40:522
18051993630,4cyclictest33-21ksoftirqd/209:29:312
18051993630,4cyclictest33-21ksoftirqd/207:46:462
18051993629,4cyclictest33-21ksoftirqd/207:30:372
18050993631,3cyclictest25-21ksoftirqd/109:10:371
18050993630,4cyclictest25-21ksoftirqd/109:26:591
18050993630,4cyclictest25-21ksoftirqd/107:45:521
1805099360,34cyclictest0-21swapper/112:30:351
18049993630,3cyclictest9-21ksoftirqd/010:05:000
18052993530,3cyclictest41-21ksoftirqd/310:01:343
18052993530,3cyclictest41-21ksoftirqd/309:28:183
18052993530,3cyclictest41-21ksoftirqd/309:08:503
18052993529,4cyclictest41-21ksoftirqd/311:45:373
18052993529,4cyclictest41-21ksoftirqd/307:38:093
18051993531,3cyclictest33-21ksoftirqd/208:03:392
18051993530,3cyclictest33-21ksoftirqd/209:53:062
18051993530,3cyclictest33-21ksoftirqd/208:35:132
18051993529,4cyclictest33-21ksoftirqd/211:51:052
18051993529,4cyclictest33-21ksoftirqd/211:34:562
18051993528,4cyclictest33-21ksoftirqd/207:18:592
18050993530,3cyclictest25-21ksoftirqd/112:11:461
18050993529,4cyclictest25-21ksoftirqd/111:39:261
18050993529,4cyclictest25-21ksoftirqd/111:17:421
18050993528,4cyclictest25-21ksoftirqd/110:55:331
18050993528,4cyclictest25-21ksoftirqd/110:47:581
18050993528,4cyclictest25-21ksoftirqd/110:07:591
18050993528,4cyclictest25-21ksoftirqd/110:07:581
18049993530,3cyclictest9-21ksoftirqd/012:12:240
18049993530,3cyclictest9-21ksoftirqd/011:05:000
18049993530,3cyclictest9-21ksoftirqd/009:25:180
18049993530,3cyclictest9-21ksoftirqd/009:15:010
18049993529,4cyclictest9-21ksoftirqd/012:40:000
18049993529,4cyclictest9-21ksoftirqd/009:18:390
18049993529,3cyclictest9-21ksoftirqd/009:45:140
18049993528,4cyclictest9-21ksoftirqd/010:33:280
139291350,0ptp4l401ktimersoftd/308:15:223
41298340,8rtkit-daemon0-21swapper/112:26:131
18052993429,3cyclictest41-21ksoftirqd/311:20:113
18052993429,3cyclictest41-21ksoftirqd/310:57:193
18052993429,3cyclictest41-21ksoftirqd/309:44:023
18052993429,3cyclictest41-21ksoftirqd/308:25:463
18052993428,4cyclictest41-21ksoftirqd/310:47:473
18052993428,4cyclictest41-21ksoftirqd/308:48:133
18052993428,4cyclictest41-21ksoftirqd/308:22:583
18051993430,3cyclictest33-21ksoftirqd/208:00:012
18051993429,3cyclictest33-21ksoftirqd/210:51:442
18051993428,4cyclictest33-21ksoftirqd/210:09:292
18051993428,4cyclictest33-21ksoftirqd/210:09:292
18051993428,4cyclictest33-21ksoftirqd/209:46:332
18051993428,4cyclictest33-21ksoftirqd/209:12:352
18051993428,4cyclictest33-21ksoftirqd/208:45:002
18051993428,4cyclictest33-21ksoftirqd/207:26:552
18050993429,3cyclictest25-21ksoftirqd/111:54:501
18050993429,3cyclictest25-21ksoftirqd/108:39:281
18050993429,3cyclictest25-21ksoftirqd/108:10:041
18050993428,4cyclictest25-21ksoftirqd/112:03:411
18050993428,4cyclictest25-21ksoftirqd/111:44:391
18050993428,4cyclictest25-21ksoftirqd/109:37:421
18050993428,4cyclictest25-21ksoftirqd/107:43:361
18049993429,3cyclictest9-21ksoftirqd/011:05:250
18049993428,4cyclictest9-21ksoftirqd/010:45:460
18049993428,4cyclictest9-21ksoftirqd/010:17:150
18049993428,3cyclictest9-21ksoftirqd/011:20:000
18049993427,4cyclictest9-21ksoftirqd/011:51:310
18049993427,4cyclictest9-21ksoftirqd/010:08:110
18049993427,4cyclictest9-21ksoftirqd/010:08:110
139291340,0ptp4l401ktimersoftd/307:40:253
18052993328,3cyclictest41-21ksoftirqd/312:12:483
18052993328,3cyclictest41-21ksoftirqd/311:39:073
18052993328,3cyclictest41-21ksoftirqd/310:52:553
18052993328,3cyclictest41-21ksoftirqd/308:07:503
18052993327,4cyclictest41-21ksoftirqd/312:03:503
18052993327,4cyclictest41-21ksoftirqd/310:22:203
18052993327,4cyclictest41-21ksoftirqd/307:49:473
18052993326,4cyclictest41-21ksoftirqd/308:35:333
18051993328,3cyclictest33-21ksoftirqd/212:03:532
18051993328,3cyclictest33-21ksoftirqd/210:30:082
18051993328,3cyclictest33-21ksoftirqd/210:17:342
18051993328,3cyclictest33-21ksoftirqd/209:20:132
18051993328,3cyclictest33-21ksoftirqd/208:55:402
18051993328,3cyclictest33-21ksoftirqd/208:28:432
18051993328,3cyclictest33-21ksoftirqd/207:39:042
18051993327,4cyclictest33-21ksoftirqd/211:14:502
18051993327,4cyclictest33-21ksoftirqd/210:01:332
18051993327,4cyclictest33-21ksoftirqd/209:02:152
18051993327,4cyclictest33-21ksoftirqd/207:42:052
18050993328,3cyclictest25-21ksoftirqd/109:34:051
18050993328,3cyclictest25-21ksoftirqd/109:24:491
18050993328,3cyclictest25-21ksoftirqd/108:01:291
18050993327,4cyclictest25-21ksoftirqd/112:09:331
18050993327,4cyclictest25-21ksoftirqd/111:56:301
18050993327,4cyclictest25-21ksoftirqd/111:28:211
18050993327,4cyclictest25-21ksoftirqd/110:27:071
18050993327,4cyclictest25-21ksoftirqd/107:38:591
18050993327,3cyclictest25-21ksoftirqd/111:32:011
18050993327,3cyclictest25-21ksoftirqd/109:53:381
18050993327,3cyclictest25-21ksoftirqd/109:43:501
18050993327,3cyclictest25-21ksoftirqd/107:32:241
18049993328,3cyclictest9-21ksoftirqd/010:55:000
18049993327,4cyclictest9-21ksoftirqd/012:19:430
18049993327,4cyclictest9-21ksoftirqd/011:32:050
18049993327,4cyclictest9-21ksoftirqd/011:13:520
18049993327,3cyclictest9-21ksoftirqd/009:05:110
18049993326,5cyclictest9-21ksoftirqd/012:06:310
18049993326,4cyclictest9-21ksoftirqd/012:30:100
18049993326,4cyclictest9-21ksoftirqd/009:41:170
18049993326,4cyclictest9-21ksoftirqd/007:12:100
139291330,0ptp4l401ktimersoftd/312:27:243
139291330,0ptp4l401ktimersoftd/307:55:263
18052993227,3cyclictest41-21ksoftirqd/312:37:553
18052993227,3cyclictest41-21ksoftirqd/309:39:313
18051993226,4cyclictest33-21ksoftirqd/212:15:282
18051993226,4cyclictest33-21ksoftirqd/211:48:002
18051993226,4cyclictest33-21ksoftirqd/208:23:242
18051993226,4cyclictest33-21ksoftirqd/207:53:512
18051993225,4cyclictest33-21ksoftirqd/212:10:472
18051993225,4cyclictest33-21ksoftirqd/211:15:242
18050993227,3cyclictest25-21ksoftirqd/112:16:481
18050993227,3cyclictest25-21ksoftirqd/110:37:261
18050993227,3cyclictest25-21ksoftirqd/109:56:491
18050993227,3cyclictest25-21ksoftirqd/109:46:231
18050993227,3cyclictest25-21ksoftirqd/107:52:341
18050993226,4cyclictest25-21ksoftirqd/110:00:111
18050993226,4cyclictest25-21ksoftirqd/108:47:511
18050993226,3cyclictest25-21ksoftirqd/110:50:121
18050993225,4cyclictest25-21ksoftirqd/110:32:211
18049993228,2cyclictest9-21ksoftirqd/009:24:590
18049993227,3cyclictest9-21ksoftirqd/010:42:160
18049993227,3cyclictest9-21ksoftirqd/008:20:130
18049993227,3cyclictest9-21ksoftirqd/007:40:180
18049993226,4cyclictest9-21ksoftirqd/007:54:590
18049993226,4cyclictest9-21ksoftirqd/007:33:310
18049993226,3cyclictest9-21ksoftirqd/009:30:420
18049993226,3cyclictest9-21ksoftirqd/008:00:520
18049993226,3cyclictest9-21ksoftirqd/007:45:100
18049993225,4cyclictest9-21ksoftirqd/011:25:110
18049993225,4cyclictest9-21ksoftirqd/010:27:380
18049993225,4cyclictest9-21ksoftirqd/009:03:100
18052993126,3cyclictest41-21ksoftirqd/311:00:193
18052993126,3cyclictest41-21ksoftirqd/308:58:043
18052993126,3cyclictest41-21ksoftirqd/307:30:143
18052993125,4cyclictest41-21ksoftirqd/308:01:083
18051993126,3cyclictest33-21ksoftirqd/209:33:382
18051993126,3cyclictest33-21ksoftirqd/208:47:052
18051993126,3cyclictest33-21ksoftirqd/207:22:152
18051993125,4cyclictest33-21ksoftirqd/210:11:362
18050993126,3cyclictest25-21ksoftirqd/107:23:121
18050993125,4cyclictest25-21ksoftirqd/111:21:471
18050993125,4cyclictest25-21ksoftirqd/108:52:041
18050993125,3cyclictest25-21ksoftirqd/109:15:541
18049993126,3cyclictest9-21ksoftirqd/008:30:410
18049993126,3cyclictest9-21ksoftirqd/008:30:410
18049993125,4cyclictest9-21ksoftirqd/011:43:290
18049993125,3cyclictest30012-21cpu07:35:140
1395913124,3phc2sys41-21ksoftirqd/310:05:223
1395913124,3phc2sys41-21ksoftirqd/310:05:223
139291310,9ptp4l401ktimersoftd/309:58:203
18052993025,3cyclictest41-21ksoftirqd/308:40:463
18052993025,3cyclictest41-21ksoftirqd/307:22:353
18052993024,4cyclictest41-21ksoftirqd/311:09:543
18052993024,4cyclictest41-21ksoftirqd/309:48:463
18051993025,3cyclictest33-21ksoftirqd/209:56:472
18051993024,4cyclictest33-21ksoftirqd/212:25:072
18051993024,4cyclictest33-21ksoftirqd/211:05:032
18051993024,4cyclictest33-21ksoftirqd/210:39:012
18051993024,4cyclictest33-21ksoftirqd/210:23:232
18050993024,4cyclictest25-21ksoftirqd/108:55:501
18050993024,4cyclictest25-21ksoftirqd/108:24:281
18050993024,4cyclictest25-21ksoftirqd/108:19:271
18050993024,4cyclictest25-21ksoftirqd/107:26:351
18049993025,3cyclictest9-21ksoftirqd/008:40:010
18049993025,3cyclictest9-21ksoftirqd/007:16:310
18049993024,3cyclictest9-21ksoftirqd/008:42:410
18052992924,3cyclictest41-21ksoftirqd/311:12:153
18052992923,4cyclictest41-21ksoftirqd/312:18:143
18051992925,3cyclictest33-21ksoftirqd/211:55:112
18050992924,3cyclictest25-21ksoftirqd/110:43:001
18049992925,2cyclictest9-21ksoftirqd/012:05:000
18049992923,4cyclictest9-21ksoftirqd/008:46:010
18049992923,4cyclictest9-21ksoftirqd/008:17:320
18049992922,4cyclictest9-21ksoftirqd/007:20:110
139291290,0ptp4l401ktimersoftd/311:51:383
18051992823,3cyclictest33-21ksoftirqd/210:47:002
18049992823,3cyclictest9-21ksoftirqd/008:54:420
147592280,2sleep20-21swapper/210:25:162
18051992722,3cyclictest33-21ksoftirqd/212:09:182
18051992722,3cyclictest33-21ksoftirqd/208:50:112
18051992722,3cyclictest33-21ksoftirqd/208:07:522
18051992718,7cyclictest33-21ksoftirqd/208:12:242
18049992723,2cyclictest9-21ksoftirqd/007:30:000
18051992621,3cyclictest33-21ksoftirqd/210:55:392
18051992620,4cyclictest33-21ksoftirqd/211:23:012
18049992621,3cyclictest9-21ksoftirqd/012:20:180
18052992521,3cyclictest41-21ksoftirqd/312:20:183
18051992520,3cyclictest33-21ksoftirqd/209:05:142
18050992520,3cyclictest25-21ksoftirqd/108:41:441
18050992519,4cyclictest25-21ksoftirqd/109:01:071
18049992520,3cyclictest9-21ksoftirqd/008:05:360
18050992419,3cyclictest25-21ksoftirqd/107:15:561
18050992317,4cyclictest25-21ksoftirqd/110:14:331
18049992319,2cyclictest9-21ksoftirqd/010:24:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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