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2026-03-30 - 23:04
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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 rackdslot4.osadl.org (updated Mon Mar 30, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591201168,22phc2sys0-21swapper/307:09:553
113372200166,22sleep20-21swapper/207:09:092
113402199165,22sleep00-21swapper/007:09:110
111612197161,24sleep10-21swapper/107:06:501
1384911020,1ptp4l2433-21irqstats10:05:193
56092710,1sleep10-21swapper/111:15:261
237552620,4sleep125-21ksoftirqd/109:45:001
237552620,4sleep125-21ksoftirqd/109:45:001
138491580,1ptp4l401ktimersoftd/307:10:213
138491570,1ptp4l401ktimersoftd/311:01:203
138491520,1ptp4l401ktimersoftd/311:46:083
138491480,1ptp4l401ktimersoftd/307:16:183
138491430,0ptp4l401ktimersoftd/309:00:293
11702994338,3cyclictest31798-21fschecks_count10:00:143
50798410,4rtkit-daemon6689-21apt-get12:25:133
11699994136,2cyclictest9-21ksoftirqd/010:20:000
138491400,0ptp4l401ktimersoftd/308:40:153
11702994034,4cyclictest41-21ksoftirqd/312:00:003
11701994033,4cyclictest11301-21cron10:25:002
11699994035,3cyclictest9-21ksoftirqd/012:30:000
11699994026,5cyclictest9-21ksoftirqd/008:08:070
135191390,8getstats1170299cyclictest07:44:293
1170199390,37cyclictest0-21swapper/212:25:332
138491380,0ptp4l401ktimersoftd/307:20:133
11702993834,2cyclictest41-21ksoftirqd/308:50:123
11702993833,3cyclictest41-21ksoftirqd/309:00:003
11700993834,2cyclictest25-21ksoftirqd/109:05:001
11702993731,3cyclictest41-21ksoftirqd/310:50:003
11701993731,4cyclictest33-21ksoftirqd/209:49:422
11700993733,2cyclictest25-21ksoftirqd/112:20:001
11700993732,3cyclictest25-21ksoftirqd/112:00:001
11699993733,2cyclictest9-21ksoftirqd/011:25:000
11699993732,3cyclictest9-21ksoftirqd/010:10:010
11699993731,4cyclictest9-21ksoftirqd/009:07:560
1169999371,2cyclictest121rcu_preempt12:03:310
11702993631,3cyclictest41-21ksoftirqd/311:25:003
11702993631,3cyclictest41-21ksoftirqd/310:20:173
11702993631,3cyclictest41-21ksoftirqd/309:30:173
11702993631,3cyclictest41-21ksoftirqd/309:16:073
11702993630,4cyclictest41-21ksoftirqd/312:35:443
11701993630,4cyclictest33-21ksoftirqd/211:08:052
11701993630,4cyclictest33-21ksoftirqd/209:42:132
11701993630,4cyclictest33-21ksoftirqd/209:42:122
11701993630,4cyclictest33-21ksoftirqd/207:40:342
11700993632,2cyclictest25-21ksoftirqd/110:05:001
11700993631,3cyclictest25-21ksoftirqd/110:15:211
138491350,0ptp4l401ktimersoftd/309:20:193
11702993531,2cyclictest41-21ksoftirqd/312:05:003
11702993530,3cyclictest41-21ksoftirqd/311:35:133
11702993530,3cyclictest41-21ksoftirqd/308:05:003
11702993530,3cyclictest41-21ksoftirqd/308:05:003
11702993529,4cyclictest41-21ksoftirqd/309:39:043
11702993529,4cyclictest41-21ksoftirqd/308:15:093
11702993529,4cyclictest41-21ksoftirqd/307:47:293
11702993529,3cyclictest41-21ksoftirqd/307:55:003
11701993529,4cyclictest33-21ksoftirqd/210:17:222
11701993529,4cyclictest33-21ksoftirqd/210:03:072
11701993529,4cyclictest33-21ksoftirqd/209:58:372
11701993528,4cyclictest33-21ksoftirqd/209:38:052
1170199350,34cyclictest0-21swapper/212:00:232
11700993529,4cyclictest25-21ksoftirqd/109:23:421
11700993529,4cyclictest25-21ksoftirqd/108:15:591
11700993528,4cyclictest25-21ksoftirqd/111:40:301
11700993527,3cyclictest25-21ksoftirqd/110:05:131
11699993531,2cyclictest9-21ksoftirqd/008:25:120
11699993530,3cyclictest9-21ksoftirqd/012:10:010
11699993529,4cyclictest9-21ksoftirqd/011:39:360
11699993529,4cyclictest9-21ksoftirqd/009:38:530
11699993529,4cyclictest9-21ksoftirqd/009:10:420
11699993529,4cyclictest9-21ksoftirqd/008:43:330
11699993529,4cyclictest9-21ksoftirqd/007:34:060
11699993529,3cyclictest9-21ksoftirqd/012:35:180
11702993430,3cyclictest41-21ksoftirqd/308:20:183
11702993429,3cyclictest41-21ksoftirqd/311:40:083
11702993429,3cyclictest41-21ksoftirqd/311:30:173
11702993429,3cyclictest41-21ksoftirqd/308:30:143
11702993428,4cyclictest41-21ksoftirqd/310:31:233
11702993428,3cyclictest41-21ksoftirqd/312:10:003
11701993429,3cyclictest33-21ksoftirqd/211:33:572
11701993429,3cyclictest33-21ksoftirqd/207:18:092
11701993428,4cyclictest33-21ksoftirqd/212:08:112
11701993428,4cyclictest33-21ksoftirqd/211:51:222
11701993428,4cyclictest33-21ksoftirqd/211:37:262
11701993428,4cyclictest33-21ksoftirqd/211:02:162
11701993428,4cyclictest33-21ksoftirqd/210:58:382
11701993428,4cyclictest33-21ksoftirqd/210:48:072
11701993428,4cyclictest33-21ksoftirqd/208:55:352
11701993428,4cyclictest33-21ksoftirqd/208:31:562
11701993428,4cyclictest33-21ksoftirqd/208:03:362
11701993428,4cyclictest33-21ksoftirqd/208:03:362
11701993428,4cyclictest33-21ksoftirqd/207:54:372
11700993430,2cyclictest25-21ksoftirqd/108:00:011
11700993428,4cyclictest25-21ksoftirqd/111:54:591
11700993428,4cyclictest25-21ksoftirqd/111:23:411
11700993428,4cyclictest25-21ksoftirqd/111:08:281
11700993428,4cyclictest25-21ksoftirqd/109:51:431
11700993428,4cyclictest25-21ksoftirqd/108:36:331
11699993431,2cyclictest9-21ksoftirqd/007:45:000
11699993429,3cyclictest9-21ksoftirqd/010:20:120
11699993428,4cyclictest9-21ksoftirqd/012:10:010
11699993428,4cyclictest9-21ksoftirqd/011:26:250
11699993428,4cyclictest9-21ksoftirqd/010:59:540
11699993428,4cyclictest9-21ksoftirqd/009:03:350
11699993428,4cyclictest9-21ksoftirqd/008:40:000
11699993428,4cyclictest9-21ksoftirqd/008:16:050
11699993428,4cyclictest9-21ksoftirqd/007:28:430
11699993428,4cyclictest9-21ksoftirqd/007:14:120
138491330,0ptp4l401ktimersoftd/308:10:363
11702993329,2cyclictest41-21ksoftirqd/309:10:003
11702993328,3cyclictest41-21ksoftirqd/311:30:003
11702993328,3cyclictest41-21ksoftirqd/310:25:193
11702993328,3cyclictest41-21ksoftirqd/310:15:213
11702993328,3cyclictest41-21ksoftirqd/310:15:013
11702993328,3cyclictest41-21ksoftirqd/309:55:193
11702993328,3cyclictest41-21ksoftirqd/309:45:213
11702993328,3cyclictest41-21ksoftirqd/309:45:003
11702993328,3cyclictest41-21ksoftirqd/309:45:003
11702993327,4cyclictest41-21ksoftirqd/312:32:113
11702993327,4cyclictest41-21ksoftirqd/311:16:133
11702993327,4cyclictest41-21ksoftirqd/311:10:033
11702993327,4cyclictest41-21ksoftirqd/310:52:543
11702993327,4cyclictest41-21ksoftirqd/307:29:233
11701993329,3cyclictest33-21ksoftirqd/209:02:212
11701993328,3cyclictest33-21ksoftirqd/210:08:292
11701993327,4cyclictest33-21ksoftirqd/212:17:012
11701993327,4cyclictest33-21ksoftirqd/211:24:182
11701993327,4cyclictest33-21ksoftirqd/210:14:222
11701993327,4cyclictest33-21ksoftirqd/209:51:392
11701993327,4cyclictest33-21ksoftirqd/209:06:582
11701993327,4cyclictest33-21ksoftirqd/208:43:032
11701993327,4cyclictest33-21ksoftirqd/208:14:302
11701993327,3cyclictest33-21ksoftirqd/210:43:402
11701993326,5cyclictest33-21ksoftirqd/208:46:012
11700993328,3cyclictest25-21ksoftirqd/112:35:181
11700993328,3cyclictest25-21ksoftirqd/109:55:571
11700993328,3cyclictest25-21ksoftirqd/108:05:061
11700993328,3cyclictest25-21ksoftirqd/107:25:471
11700993327,4cyclictest25-21ksoftirqd/111:01:421
11700993327,4cyclictest25-21ksoftirqd/110:50:511
11700993327,4cyclictest25-21ksoftirqd/110:47:141
11700993327,4cyclictest25-21ksoftirqd/110:41:291
11700993327,4cyclictest25-21ksoftirqd/110:21:191
11700993327,4cyclictest25-21ksoftirqd/109:38:301
11700993327,4cyclictest25-21ksoftirqd/108:28:341
11700993327,4cyclictest25-21ksoftirqd/107:43:491
11700993327,3cyclictest25-21ksoftirqd/108:59:591
11700993326,5cyclictest25-21ksoftirqd/110:27:281
11699993329,2cyclictest9-21ksoftirqd/012:20:000
11699993329,2cyclictest9-21ksoftirqd/008:20:140
11699993328,3cyclictest9-21ksoftirqd/011:50:210
11699993328,3cyclictest9-21ksoftirqd/010:25:190
11699993328,3cyclictest9-21ksoftirqd/008:55:120
11699993328,3cyclictest9-21ksoftirqd/008:10:030
11699993328,3cyclictest9-21ksoftirqd/008:00:180
11699993328,3cyclictest9-21ksoftirqd/008:00:180
11699993327,4cyclictest9-21ksoftirqd/012:20:480
11699993327,4cyclictest9-21ksoftirqd/011:05:100
11699993327,4cyclictest9-21ksoftirqd/010:52:430
11699993327,4cyclictest9-21ksoftirqd/010:37:300
11699993327,4cyclictest9-21ksoftirqd/009:49:240
11699993327,4cyclictest9-21ksoftirqd/008:51:040
11699993327,4cyclictest9-21ksoftirqd/007:23:140
11702993228,2cyclictest41-21ksoftirqd/309:55:013
11702993228,2cyclictest41-21ksoftirqd/307:30:183
11702993226,4cyclictest41-21ksoftirqd/312:13:493
11702993226,4cyclictest41-21ksoftirqd/310:41:113
11702993226,3cyclictest8883-21kworker/3:107:55:133
11702993226,3cyclictest41-21ksoftirqd/311:05:133
1170299321,29cyclictest26405-21kworker/3:008:45:153
11701993227,4cyclictest33-21ksoftirqd/211:19:552
11701993227,3cyclictest33-21ksoftirqd/208:28:042
11701993227,3cyclictest33-21ksoftirqd/207:38:182
11701993226,4cyclictest33-21ksoftirqd/211:58:082
11701993226,4cyclictest33-21ksoftirqd/210:36:362
11701993226,4cyclictest33-21ksoftirqd/210:31:072
11701993226,4cyclictest33-21ksoftirqd/209:20:382
11701993226,4cyclictest33-21ksoftirqd/207:46:182
11700993228,2cyclictest25-21ksoftirqd/107:10:171
11700993226,4cyclictest25-21ksoftirqd/111:31:191
11700993226,4cyclictest25-21ksoftirqd/108:42:591
11700993226,3cyclictest25-21ksoftirqd/107:20:011
11700993226,3cyclictest17813-21cat07:20:221
11699993228,3cyclictest9-21ksoftirqd/011:15:200
11699993228,3cyclictest9-21ksoftirqd/009:55:200
11699993227,3cyclictest9-21ksoftirqd/009:50:450
11699993227,3cyclictest9-21ksoftirqd/009:29:260
11699993226,4cyclictest9-21ksoftirqd/011:40:530
11699993226,4cyclictest9-21ksoftirqd/009:31:590
11699993226,4cyclictest9-21ksoftirqd/008:49:360
11699993226,3cyclictest9-21ksoftirqd/009:45:010
11699993226,3cyclictest9-21ksoftirqd/009:45:010
11699993225,4cyclictest9-21ksoftirqd/007:35:060
11699993219,4cyclictest9-21ksoftirqd/011:04:100
138491310,0ptp4l401ktimersoftd/312:20:203
11702993127,2cyclictest41-21ksoftirqd/310:40:003
11702993127,2cyclictest41-21ksoftirqd/308:30:003
11702993126,3cyclictest41-21ksoftirqd/310:55:193
11702993126,3cyclictest41-21ksoftirqd/308:35:193
11702993125,3cyclictest41-21ksoftirqd/309:25:133
1170299310,2cyclictest121rcu_preempt12:15:143
11701993126,3cyclictest33-21ksoftirqd/209:29:362
11701993126,3cyclictest33-21ksoftirqd/208:22:342
11701993125,4cyclictest33-21ksoftirqd/208:53:512
11701993125,4cyclictest33-21ksoftirqd/208:19:562
11701993125,4cyclictest33-21ksoftirqd/207:56:302
11701993125,4cyclictest33-21ksoftirqd/207:14:222
11700993127,3cyclictest25-21ksoftirqd/111:25:121
11700993127,2cyclictest25-21ksoftirqd/107:30:181
11700993125,4cyclictest25-21ksoftirqd/112:13:111
11700993125,4cyclictest25-21ksoftirqd/110:59:301
11700993125,4cyclictest25-21ksoftirqd/110:32:541
11700993125,4cyclictest25-21ksoftirqd/107:54:011
11700993125,3cyclictest25-21ksoftirqd/109:25:201
11699993127,3cyclictest9-21ksoftirqd/009:25:000
11699993125,4cyclictest9-21ksoftirqd/011:10:560
11699993125,4cyclictest9-21ksoftirqd/010:00:390
11699993125,4cyclictest9-21ksoftirqd/008:31:540
11701993025,3cyclictest33-21ksoftirqd/210:53:262
11701993024,4cyclictest33-21ksoftirqd/212:10:352
11701993024,4cyclictest33-21ksoftirqd/211:28:472
11701993024,4cyclictest33-21ksoftirqd/209:11:162
11701993024,4cyclictest33-21ksoftirqd/208:06:282
11701993024,4cyclictest33-21ksoftirqd/207:30:022
11700993026,3cyclictest25-21ksoftirqd/112:10:001
11700993025,3cyclictest25-21ksoftirqd/112:31:411
11700993025,3cyclictest25-21ksoftirqd/112:05:001
11700993024,4cyclictest25-21ksoftirqd/109:34:541
11700993024,4cyclictest25-21ksoftirqd/109:07:021
11700993024,4cyclictest25-21ksoftirqd/107:36:101
11700993024,3cyclictest25-21ksoftirqd/112:25:191
11699993025,3cyclictest9-21ksoftirqd/011:55:370
11699993025,3cyclictest9-21ksoftirqd/010:41:270
11699993025,3cyclictest9-21ksoftirqd/009:17:230
11699993025,3cyclictest9-21ksoftirqd/008:00:000
11699993024,4cyclictest9-21ksoftirqd/011:34:270
11699993024,4cyclictest9-21ksoftirqd/007:47:000
11702992926,2cyclictest41-21ksoftirqd/307:35:263
11701992924,3cyclictest33-21ksoftirqd/212:38:582
11701992924,3cyclictest33-21ksoftirqd/211:45:582
11701992924,3cyclictest33-21ksoftirqd/209:19:022
11701992924,3cyclictest33-21ksoftirqd/208:36:252
11701992923,4cyclictest33-21ksoftirqd/207:23:442
11701992922,5cyclictest33-21ksoftirqd/211:11:462
11700992924,3cyclictest25-21ksoftirqd/110:11:211
11700992924,3cyclictest25-21ksoftirqd/108:45:181
11699992924,3cyclictest9-21ksoftirqd/007:19:580
11699992923,4cyclictest9-21ksoftirqd/011:45:580
11702992823,3cyclictest41-21ksoftirqd/311:54:523
11701992822,4cyclictest33-21ksoftirqd/212:30:572
11700992824,2cyclictest25-21ksoftirqd/108:30:021
11700992823,3cyclictest25-21ksoftirqd/110:35:131
11700992822,4cyclictest25-21ksoftirqd/112:23:141
11700992822,4cyclictest25-21ksoftirqd/111:45:271
11700992822,4cyclictest25-21ksoftirqd/108:54:531
11700992822,4cyclictest25-21ksoftirqd/107:45:131
11700992822,3cyclictest25-21ksoftirqd/108:00:171
11700992822,3cyclictest25-21ksoftirqd/108:00:171
11699992823,3cyclictest9-21ksoftirqd/010:32:380
11699992823,3cyclictest9-21ksoftirqd/010:10:500
11702992723,3cyclictest41-21ksoftirqd/309:10:213
11701992722,3cyclictest33-21ksoftirqd/212:21:092
11701992722,3cyclictest33-21ksoftirqd/211:41:512
11701992721,4cyclictest33-21ksoftirqd/209:30:092
11700992722,3cyclictest25-21ksoftirqd/109:15:001
11699992720,4cyclictest9-21ksoftirqd/012:30:110
11701992621,3cyclictest33-21ksoftirqd/210:25:542
11700992622,2cyclictest25-21ksoftirqd/111:38:161
11699992621,3cyclictest9-21ksoftirqd/010:45:560
11701992520,3cyclictest33-21ksoftirqd/207:27:572
11700992519,4cyclictest25-21ksoftirqd/111:13:461
11700992519,4cyclictest25-21ksoftirqd/109:46:321
11702992420,2cyclictest41-21ksoftirqd/308:05:213
11700992419,3cyclictest25-21ksoftirqd/108:22:211
11700992418,4cyclictest25-21ksoftirqd/109:17:561
11699992419,3cyclictest9-21ksoftirqd/007:54:590
11700992318,3cyclictest25-21ksoftirqd/108:10:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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