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2026-08-07 - 20:03
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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 07, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591207173,23phc2sys0-21swapper/307:09:453
290522204170,23sleep10-21swapper/107:06:341
289702202169,22sleep20-21swapper/207:05:312
291352200166,22sleep00-21swapper/007:07:380
138491810,1ptp4l16445-21sed09:55:263
138491760,1ptp4l391rcuc/310:35:233
138491510,1ptp4l401ktimersoftd/307:54:153
2961999491,46cyclictest0-21swapper/209:40:232
29620994843,3cyclictest12113-21apt09:50:003
2961999440,2cyclictest0-21swapper/208:00:232
2961999440,2cyclictest0-21swapper/208:00:232
29620994338,3cyclictest22671-21fschecks_count08:00:143
29620994338,3cyclictest22671-21fschecks_count08:00:143
138491420,0ptp4l401ktimersoftd/312:36:123
138491420,0ptp4l401ktimersoftd/310:54:033
138491410,0ptp4l401ktimersoftd/308:29:173
138491410,0ptp4l401ktimersoftd/307:17:243
29620994025,13cyclictest41-21ksoftirqd/311:55:003
29617994033,4cyclictest23324-21irqrtprio11:15:180
138491400,1ptp4l0-21swapper/309:35:313
29619993935,2cyclictest7326-21dump-pmu-power10:45:012
138491390,1ptp4l391rcuc/309:10:233
50798380,2rtkit-daemon506-21rtkit-daemon11:03:130
29619993830,5cyclictest33-21ksoftirqd/211:23:452
2961999380,37cyclictest0-21swapper/209:55:232
2961999380,36cyclictest0-21swapper/209:09:442
29617993833,3cyclictest9-21ksoftirqd/008:40:000
29620993731,4cyclictest41-21ksoftirqd/312:10:083
29620993731,4cyclictest41-21ksoftirqd/312:10:083
29620993731,4cyclictest41-21ksoftirqd/310:16:033
29619993731,4cyclictest33-21ksoftirqd/211:16:202
29619993731,4cyclictest33-21ksoftirqd/210:23:442
29619993731,4cyclictest33-21ksoftirqd/210:23:442
29619993731,4cyclictest33-21ksoftirqd/210:13:452
2961899379,26cyclictest0-21swapper/107:56:531
29618993731,4cyclictest25-21ksoftirqd/112:05:371
29618993731,4cyclictest25-21ksoftirqd/111:07:411
29618993731,4cyclictest25-21ksoftirqd/109:16:041
29617993732,3cyclictest9-21ksoftirqd/010:50:000
138491370,1ptp4l0-21swapper/311:11:233
29620993630,4cyclictest41-21ksoftirqd/310:47:523
29620993630,4cyclictest41-21ksoftirqd/310:23:333
29620993630,4cyclictest41-21ksoftirqd/310:23:333
29620993630,4cyclictest41-21ksoftirqd/308:41:073
29619993630,4cyclictest36092irq/128-enp1s0-12:22:572
29619993630,4cyclictest33-21ksoftirqd/212:27:532
29619993630,4cyclictest33-21ksoftirqd/212:18:372
29619993630,4cyclictest33-21ksoftirqd/210:59:272
29619993630,4cyclictest33-21ksoftirqd/210:50:322
29619993630,4cyclictest33-21ksoftirqd/210:07:442
29619993630,4cyclictest33-21ksoftirqd/207:25:412
29618993630,4cyclictest25-21ksoftirqd/112:20:331
29618993630,4cyclictest25-21ksoftirqd/111:49:231
29618993630,4cyclictest25-21ksoftirqd/108:03:551
29618993630,4cyclictest25-21ksoftirqd/108:03:551
29617993632,3cyclictest9-21ksoftirqd/012:00:000
29617993630,4cyclictest9-21ksoftirqd/007:17:480
29617993629,4cyclictest9-21ksoftirqd/012:15:100
29620993529,4cyclictest41-21ksoftirqd/312:02:183
29620993529,4cyclictest41-21ksoftirqd/309:50:443
29620993529,4cyclictest41-21ksoftirqd/308:59:093
29620993529,4cyclictest41-21ksoftirqd/307:12:093
29619993531,2cyclictest17323-21latency_hist08:55:002
29619993530,3cyclictest33-21ksoftirqd/211:35:072
29619993529,4cyclictest33-21ksoftirqd/212:10:122
29619993529,4cyclictest33-21ksoftirqd/212:10:122
29619993529,4cyclictest33-21ksoftirqd/210:31:022
29619993529,4cyclictest33-21ksoftirqd/209:36:232
29619993529,4cyclictest33-21ksoftirqd/208:57:032
29619993529,4cyclictest33-21ksoftirqd/207:14:252
2961999350,1cyclictest0-21swapper/211:54:032
29618993530,3cyclictest25-21ksoftirqd/110:57:451
29618993529,4cyclictest25-21ksoftirqd/112:31:331
29618993529,4cyclictest25-21ksoftirqd/111:38:411
29618993529,4cyclictest25-21ksoftirqd/107:54:091
29618993528,4cyclictest25-21ksoftirqd/109:57:281
29618993528,4cyclictest25-21ksoftirqd/108:55:051
29617993530,3cyclictest9-21ksoftirqd/007:50:000
29617993529,4cyclictest9-21ksoftirqd/011:45:000
29617993529,4cyclictest9-21ksoftirqd/011:45:000
29617993529,4cyclictest9-21ksoftirqd/011:21:410
29617993529,4cyclictest9-21ksoftirqd/009:17:590
29617993529,4cyclictest9-21ksoftirqd/007:21:410
29617993528,5cyclictest9-21ksoftirqd/008:24:440
29617993527,5cyclictest9-21ksoftirqd/009:03:110
138491350,0ptp4l401ktimersoftd/307:40:193
29620993429,3cyclictest41-21ksoftirqd/311:27:203
29620993428,4cyclictest41-21ksoftirqd/311:56:483
29620993428,4cyclictest41-21ksoftirqd/311:49:053
29620993428,4cyclictest41-21ksoftirqd/311:32:503
29620993428,4cyclictest41-21ksoftirqd/311:22:563
29620993428,4cyclictest41-21ksoftirqd/311:04:413
29620993428,4cyclictest41-21ksoftirqd/308:45:093
29620993427,4cyclictest41-21ksoftirqd/309:15:103
29619993430,3cyclictest33-21ksoftirqd/211:03:402
29619993428,4cyclictest33-21ksoftirqd/211:31:432
29619993428,4cyclictest33-21ksoftirqd/210:47:232
29619993428,4cyclictest33-21ksoftirqd/209:30:292
29619993428,4cyclictest33-21ksoftirqd/209:20:002
29619993428,4cyclictest33-21ksoftirqd/208:25:462
29619993428,4cyclictest33-21ksoftirqd/207:43:092
29619993428,4cyclictest33-21ksoftirqd/207:31:262
29619993421,11cyclictest33-21ksoftirqd/209:03:212
29619993412,3cyclictest27491-21expr12:30:142
29618993430,3cyclictest25-21ksoftirqd/108:19:251
29618993429,3cyclictest25-21ksoftirqd/108:45:121
29618993428,4cyclictest25-21ksoftirqd/110:24:441
29618993428,4cyclictest25-21ksoftirqd/110:24:441
29618993428,4cyclictest25-21ksoftirqd/110:04:581
29618993428,4cyclictest25-21ksoftirqd/108:44:251
29618993428,4cyclictest25-21ksoftirqd/108:31:061
29618993428,4cyclictest25-21ksoftirqd/107:23:031
29618993427,5cyclictest25-21ksoftirqd/111:23:211
29617993429,3cyclictest9-21ksoftirqd/008:18:190
29617993428,4cyclictest9-21ksoftirqd/012:39:500
29617993428,4cyclictest9-21ksoftirqd/011:07:460
29617993428,4cyclictest9-21ksoftirqd/010:25:070
29617993428,4cyclictest9-21ksoftirqd/009:27:540
29617993428,4cyclictest9-21ksoftirqd/008:43:250
29617993428,4cyclictest9-21ksoftirqd/007:38:260
29617993427,5cyclictest9-21ksoftirqd/010:35:300
29620993328,3cyclictest41-21ksoftirqd/310:55:103
29620993328,3cyclictest41-21ksoftirqd/308:32:583
29620993328,3cyclictest41-21ksoftirqd/308:20:103
29620993327,4cyclictest41-21ksoftirqd/312:20:443
29620993327,4cyclictest41-21ksoftirqd/309:34:433
29620993327,4cyclictest41-21ksoftirqd/309:23:323
29620993327,4cyclictest41-21ksoftirqd/307:37:173
29620993327,4cyclictest41-21ksoftirqd/307:21:203
29620993325,4cyclictest41-21ksoftirqd/308:54:323
29619993328,3cyclictest33-21ksoftirqd/207:45:102
29619993327,4cyclictest33-21ksoftirqd/210:19:112
29619993327,4cyclictest33-21ksoftirqd/209:22:062
29619993327,4cyclictest33-21ksoftirqd/208:34:082
29619993327,4cyclictest33-21ksoftirqd/208:20:322
29619993327,4cyclictest33-21ksoftirqd/208:12:062
29619993326,4cyclictest33-21ksoftirqd/210:37:522
29619993326,4cyclictest33-21ksoftirqd/209:28:202
29618993328,3cyclictest25-21ksoftirqd/108:50:481
29618993327,4cyclictest25-21ksoftirqd/111:43:391
29618993327,4cyclictest25-21ksoftirqd/111:43:391
29618993327,4cyclictest25-21ksoftirqd/111:14:421
29618993327,4cyclictest25-21ksoftirqd/111:00:381
29618993327,4cyclictest25-21ksoftirqd/110:17:011
29618993327,4cyclictest25-21ksoftirqd/108:39:091
29618993327,4cyclictest25-21ksoftirqd/108:25:571
29618993326,5cyclictest25-21ksoftirqd/109:50:001
29618993326,4cyclictest25-21ksoftirqd/109:23:251
29617993328,3cyclictest9-21ksoftirqd/008:53:000
29617993327,4cyclictest9-21ksoftirqd/012:05:040
29617993327,4cyclictest9-21ksoftirqd/010:23:540
29617993327,4cyclictest9-21ksoftirqd/010:23:540
29617993327,4cyclictest9-21ksoftirqd/009:54:580
29617993327,4cyclictest9-21ksoftirqd/007:25:110
29617993326,5cyclictest9-21ksoftirqd/008:12:520
29617993326,3cyclictest9-21ksoftirqd/009:20:180
29620993226,4cyclictest41-21ksoftirqd/310:27:223
29620993226,4cyclictest41-21ksoftirqd/310:13:583
29620993226,4cyclictest41-21ksoftirqd/307:58:193
29620993226,4cyclictest41-21ksoftirqd/307:29:143
29619993227,3cyclictest33-21ksoftirqd/211:41:112
29619993227,3cyclictest33-21ksoftirqd/211:41:112
29619993227,3cyclictest33-21ksoftirqd/211:13:132
29619993227,3cyclictest33-21ksoftirqd/207:53:142
29619993227,3cyclictest33-21ksoftirqd/207:22:252
29619993226,4cyclictest33-21ksoftirqd/212:09:112
29619993226,4cyclictest33-21ksoftirqd/208:43:592
29619993226,4cyclictest33-21ksoftirqd/208:17:562
29619993226,4cyclictest33-21ksoftirqd/207:35:112
29618993227,3cyclictest25-21ksoftirqd/112:13:021
29618993227,3cyclictest25-21ksoftirqd/112:13:021
29618993227,3cyclictest25-21ksoftirqd/112:03:431
29618993227,3cyclictest25-21ksoftirqd/110:35:341
29618993227,3cyclictest25-21ksoftirqd/110:13:461
29618993226,4cyclictest25-21ksoftirqd/111:25:331
29618993226,4cyclictest25-21ksoftirqd/110:50:431
29618993226,4cyclictest25-21ksoftirqd/109:13:471
29618993226,4cyclictest25-21ksoftirqd/109:03:441
29618993226,4cyclictest25-21ksoftirqd/108:14:141
29618993226,4cyclictest25-21ksoftirqd/108:09:521
29618993226,4cyclictest25-21ksoftirqd/107:47:301
29618993226,4cyclictest25-21ksoftirqd/107:38:071
29618993226,4cyclictest25-21ksoftirqd/107:25:551
29617993227,3cyclictest9-21ksoftirqd/011:30:180
29617993227,3cyclictest9-21ksoftirqd/010:01:420
29617993227,3cyclictest9-21ksoftirqd/007:59:210
29617993226,4cyclictest9-21ksoftirqd/011:28:480
29617993226,4cyclictest9-21ksoftirqd/009:55:580
29617993226,3cyclictest9-21ksoftirqd/008:28:570
29617993226,3cyclictest9-21ksoftirqd/007:50:110
29617993225,5cyclictest9-21ksoftirqd/010:42:410
29617993225,4cyclictest9-21ksoftirqd/008:04:180
29617993225,4cyclictest9-21ksoftirqd/008:04:180
138491320,0ptp4l401ktimersoftd/308:05:263
2962099313,26cyclictest401ktimersoftd/309:09:033
29620993126,3cyclictest41-21ksoftirqd/312:30:063
29620993126,3cyclictest41-21ksoftirqd/312:27:213
29620993126,3cyclictest41-21ksoftirqd/311:35:103
29620993126,3cyclictest41-21ksoftirqd/311:08:463
29620993125,4cyclictest41-21ksoftirqd/309:29:383
29620993125,4cyclictest41-21ksoftirqd/308:17:293
2961999318,4cyclictest28340-21sed11:25:172
29619993126,3cyclictest33-21ksoftirqd/209:10:052
29619993125,4cyclictest33-21ksoftirqd/212:35:312
29619993125,4cyclictest33-21ksoftirqd/210:03:432
29619993125,4cyclictest33-21ksoftirqd/209:46:082
29619993125,4cyclictest33-21ksoftirqd/208:39:102
29619993113,3cyclictest12342-21/usr/sbin/munin09:50:252
29618993126,3cyclictest25-21ksoftirqd/107:42:391
29618993125,4cyclictest25-21ksoftirqd/111:32:231
29618993125,4cyclictest25-21ksoftirqd/110:25:281
29618993125,4cyclictest25-21ksoftirqd/108:21:161
29618993110,20cyclictest0-21swapper/109:44:131
29617993126,3cyclictest9-21ksoftirqd/011:50:190
29617993126,3cyclictest9-21ksoftirqd/010:30:170
29617993126,3cyclictest9-21ksoftirqd/009:40:180
29617993126,3cyclictest9-21ksoftirqd/008:50:000
29617993126,3cyclictest9-21ksoftirqd/008:06:150
29617993126,3cyclictest9-21ksoftirqd/007:33:540
29617993125,3cyclictest9-21ksoftirqd/012:28:390
29617993125,3cyclictest9-21ksoftirqd/010:55:130
29617993124,4cyclictest9-21ksoftirqd/007:40:470
138491310,0ptp4l401ktimersoftd/312:16:363
138491310,0ptp4l401ktimersoftd/311:15:173
138491310,0ptp4l401ktimersoftd/310:02:593
29620993025,3cyclictest41-21ksoftirqd/309:02:333
29620993024,4cyclictest41-21ksoftirqd/310:06:053
29620993024,4cyclictest41-21ksoftirqd/307:31:593
29620993022,4cyclictest41-21ksoftirqd/312:10:003
29619993025,3cyclictest33-21ksoftirqd/211:57:442
29619993025,3cyclictest33-21ksoftirqd/207:20:002
29619993024,4cyclictest33-21ksoftirqd/211:48:132
29619993024,4cyclictest33-21ksoftirqd/207:58:022
29619993024,3cyclictest33-21ksoftirqd/208:45:112
29618993026,2cyclictest8243-21cut07:30:191
29618993025,3cyclictest25-21ksoftirqd/111:56:451
29618993025,3cyclictest25-21ksoftirqd/110:05:051
29618993025,3cyclictest25-21ksoftirqd/109:51:181
29618993024,4cyclictest25-21ksoftirqd/112:37:541
29618993024,4cyclictest25-21ksoftirqd/109:05:571
29618993023,5cyclictest25-21ksoftirqd/109:27:341
29617993025,3cyclictest9-21ksoftirqd/010:05:570
29617993025,3cyclictest9-21ksoftirqd/009:38:130
138491300,0ptp4l401ktimersoftd/310:41:413
29620992923,4cyclictest41-21ksoftirqd/311:40:203
29620992923,4cyclictest41-21ksoftirqd/311:40:193
29620992923,4cyclictest41-21ksoftirqd/307:46:123
2961999291,26cyclictest0-21swapper/210:25:242
29618992924,3cyclictest25-21ksoftirqd/112:18:001
29618992924,3cyclictest25-21ksoftirqd/107:14:311
29618992923,4cyclictest25-21ksoftirqd/110:44:581
29618992923,4cyclictest25-21ksoftirqd/107:16:251
29617992924,3cyclictest9-21ksoftirqd/010:13:250
29617992924,3cyclictest9-21ksoftirqd/009:06:120
29617992924,3cyclictest9-21ksoftirqd/008:55:090
29617992923,4cyclictest9-21ksoftirqd/012:34:410
29617992923,4cyclictest9-21ksoftirqd/012:04:320
29617992923,4cyclictest9-21ksoftirqd/010:18:250
29617992923,4cyclictest9-21ksoftirqd/008:33:180
138491290,0ptp4l401ktimersoftd/308:38:593
29619992823,3cyclictest33-21ksoftirqd/211:10:002
29619992822,4cyclictest33-21ksoftirqd/208:08:372
29618992823,3cyclictest25-21ksoftirqd/110:45:581
29618992822,4cyclictest25-21ksoftirqd/112:26:231
29618992821,4cyclictest25-21ksoftirqd/109:35:051
29617992823,3cyclictest9-21ksoftirqd/009:47:450
29617992822,4cyclictest9-21ksoftirqd/011:11:000
29617992822,3cyclictest9-21ksoftirqd/012:10:130
29617992822,3cyclictest9-21ksoftirqd/012:10:120
29619992721,4cyclictest33-21ksoftirqd/212:04:422
29618992722,3cyclictest25-21ksoftirqd/111:53:441
29618992721,4cyclictest25-21ksoftirqd/110:32:021
29617992722,3cyclictest9-21ksoftirqd/012:24:250
29617992722,3cyclictest9-21ksoftirqd/011:47:190
29617992722,3cyclictest9-21ksoftirqd/011:35:180
29620992621,3cyclictest41-21ksoftirqd/310:32:183
29620992620,3cyclictest41-21ksoftirqd/308:11:573
29617992622,3cyclictest9-21ksoftirqd/007:10:180
29617992621,3cyclictest9-21ksoftirqd/010:54:070
29620992518,4cyclictest41-21ksoftirqd/309:41:373
29618992418,4cyclictest25-21ksoftirqd/109:30:441
29617992420,3cyclictest9-21ksoftirqd/009:30:160
29617992418,4cyclictest9-21ksoftirqd/009:14:500
29618992318,3cyclictest25-21ksoftirqd/111:17:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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