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2026-05-24 - 16:25
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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 Sun May 24, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182242206172,22sleep00-21swapper/007:09:310
182242206172,22sleep00-21swapper/007:09:310
180632204171,22sleep20-21swapper/207:07:332
180632204171,22sleep20-21swapper/207:07:332
180592203169,22sleep30-21swapper/307:07:303
180592203169,22sleep30-21swapper/307:07:303
182302201168,22sleep10-21swapper/107:09:381
182302201168,22sleep10-21swapper/107:09:381
1733521390,4sleep11855499cyclictest12:30:211
1855599680,30cyclictest1646-21cat08:45:012
1855599680,30cyclictest1646-21cat08:45:002
1855599680,21cyclictest1-21systemd10:45:252
1855599651,21cyclictest17853-21ptp4l08:10:232
1855599640,25cyclictest24671-21/usr/sbin/munin07:20:202
1855599640,23cyclictest10278-21cat09:00:212
1855599631,19cyclictest0-21swapper/207:40:232
1855599620,22cyclictest30754-21awk09:40:262
138491620,1ptp4l401ktimersoftd/307:22:053
1855599580,21cyclictest223-21systemd-journal10:33:222
138491570,1ptp4l401ktimersoftd/308:50:103
138491560,1ptp4l401ktimersoftd/308:38:573
326272550,4sleep31855699cyclictest10:50:223
1855599551,19cyclictest0-21swapper/212:10:252
138491550,1ptp4l401ktimersoftd/308:45:333
59452510,2sleep20-21swapper/212:09:592
218492450,1sleep00-21swapper/010:30:120
138491440,1ptp4l26905-21diskstats10:40:143
138491430,0ptp4l401ktimersoftd/310:28:183
1855599420,31cyclictest19182-21awk11:30:162
138491420,0ptp4l401ktimersoftd/312:11:173
1855599416,22cyclictest30503-21grep07:30:262
18555994127,11cyclictest33-21ksoftirqd/210:09:072
1855599411,23cyclictest6577-21ls10:00:122
1855599410,25cyclictest25577-21wc09:30:242
1855599410,25cyclictest21233-21tr07:15:122
138491410,0ptp4l401ktimersoftd/307:35:043
1855599400,24cyclictest17114-21cut10:20:182
138491400,1ptp4l401ktimersoftd/307:40:483
138491400,15ptp4l401ktimersoftd/308:00:123
138491400,0ptp4l401ktimersoftd/310:15:183
138491400,0ptp4l401ktimersoftd/309:20:123
18556993924,12cyclictest41-21ksoftirqd/312:35:013
18554993933,3cyclictest25-21ksoftirqd/110:40:121
18555993832,4cyclictest33-21ksoftirqd/210:15:272
18556993730,4cyclictest41-21ksoftirqd/311:48:593
1855599370,22cyclictest3168-21sed09:50:252
138491370,0ptp4l401ktimersoftd/308:10:253
18556993630,4cyclictest41-21ksoftirqd/310:57:003
18556993630,4cyclictest41-21ksoftirqd/310:30:403
18556993630,4cyclictest41-21ksoftirqd/307:32:533
18555993630,4cyclictest33-21ksoftirqd/211:45:372
18555993630,4cyclictest33-21ksoftirqd/208:58:552
18554993631,3cyclictest25-21ksoftirqd/108:35:001
18554993630,4cyclictest25-21ksoftirqd/107:18:541
18554993629,5cyclictest25-21ksoftirqd/112:19:381
18554993629,5cyclictest25-21ksoftirqd/112:19:371
18553993631,3cyclictest9-21ksoftirqd/011:45:120
18553993630,4cyclictest9-21ksoftirqd/007:50:320
18553993629,4cyclictest9-21ksoftirqd/007:57:210
18556993529,4cyclictest41-21ksoftirqd/311:28:453
18556993529,4cyclictest41-21ksoftirqd/308:06:383
18556993529,3cyclictest41-21ksoftirqd/312:29:373
18556993528,4cyclictest41-21ksoftirqd/308:41:203
18556993528,4cyclictest41-21ksoftirqd/308:41:203
18556993528,4cyclictest41-21ksoftirqd/308:31:343
18556993528,4cyclictest41-21ksoftirqd/307:18:083
18555993530,3cyclictest33-21ksoftirqd/209:57:172
18554993529,4cyclictest25-21ksoftirqd/111:01:271
18554993529,4cyclictest25-21ksoftirqd/110:09:241
18554993529,4cyclictest25-21ksoftirqd/108:47:281
18554993529,4cyclictest25-21ksoftirqd/108:21:211
18554993529,4cyclictest25-21ksoftirqd/107:57:131
18554993527,5cyclictest25-21ksoftirqd/108:50:061
18553993529,4cyclictest9-21ksoftirqd/009:07:450
18553993527,6cyclictest9-21ksoftirqd/012:35:010
138491350,33ptp4l41-21ksoftirqd/308:15:143
18556993429,3cyclictest41-21ksoftirqd/311:41:183
18556993429,3cyclictest41-21ksoftirqd/307:48:403
18556993428,4cyclictest41-21ksoftirqd/312:36:453
18556993428,4cyclictest41-21ksoftirqd/311:16:583
18556993427,4cyclictest41-21ksoftirqd/311:31:543
18556993427,4cyclictest41-21ksoftirqd/310:05:533
18556993427,4cyclictest41-21ksoftirqd/309:15:063
18555993428,4cyclictest33-21ksoftirqd/211:16:292
18555993428,4cyclictest33-21ksoftirqd/209:22:112
18555993428,4cyclictest33-21ksoftirqd/208:01:042
18555993428,4cyclictest33-21ksoftirqd/207:11:252
18554993429,3cyclictest25-21ksoftirqd/111:35:251
18554993429,3cyclictest25-21ksoftirqd/109:15:111
18554993429,3cyclictest25-21ksoftirqd/107:35:281
18554993428,4cyclictest25-21ksoftirqd/111:06:051
18554993428,4cyclictest25-21ksoftirqd/108:29:481
18553993429,3cyclictest9-21ksoftirqd/008:21:280
18553993428,4cyclictest9-21ksoftirqd/012:20:290
18553993428,4cyclictest9-21ksoftirqd/011:11:290
18553993428,4cyclictest9-21ksoftirqd/010:59:420
18553993428,4cyclictest9-21ksoftirqd/010:06:260
18553993427,5cyclictest9-21ksoftirqd/008:45:470
18553993426,6cyclictest9-21ksoftirqd/009:00:590
18553993426,5cyclictest9-21ksoftirqd/008:45:000
18553993426,5cyclictest9-21ksoftirqd/008:45:000
18556993327,4cyclictest41-21ksoftirqd/311:38:083
18556993327,3cyclictest41-21ksoftirqd/311:50:063
18555993327,4cyclictest33-21ksoftirqd/209:38:122
18555993327,4cyclictest33-21ksoftirqd/209:17:142
18555993327,4cyclictest33-21ksoftirqd/208:16:452
18555993327,4cyclictest33-21ksoftirqd/208:05:092
18555993326,4cyclictest33-21ksoftirqd/211:59:332
18555993326,4cyclictest33-21ksoftirqd/207:58:472
1855599330,20cyclictest30159-21switchtime11:50:252
18554993329,3cyclictest25-21ksoftirqd/112:00:301
18554993328,3cyclictest25-21ksoftirqd/112:14:041
18554993328,3cyclictest25-21ksoftirqd/110:00:001
18554993327,4cyclictest25-21ksoftirqd/111:42:471
18554993327,4cyclictest25-21ksoftirqd/110:28:301
18554993327,4cyclictest25-21ksoftirqd/108:41:381
18554993327,4cyclictest25-21ksoftirqd/108:41:381
18554993327,4cyclictest25-21ksoftirqd/107:45:301
18554993326,5cyclictest25-21ksoftirqd/111:56:461
18553993327,4cyclictest9-21ksoftirqd/011:21:240
18553993327,4cyclictest9-21ksoftirqd/011:18:550
18553993327,4cyclictest9-21ksoftirqd/010:14:210
18553993327,4cyclictest9-21ksoftirqd/010:05:000
18553993327,4cyclictest9-21ksoftirqd/009:29:150
18553993327,4cyclictest9-21ksoftirqd/008:57:260
18553993327,4cyclictest9-21ksoftirqd/008:09:440
18553993327,4cyclictest9-21ksoftirqd/007:15:080
18553993326,5cyclictest9-21ksoftirqd/007:27:320
18556993226,4cyclictest41-21ksoftirqd/311:10:363
18556993226,4cyclictest41-21ksoftirqd/311:02:383
18556993226,4cyclictest41-21ksoftirqd/309:07:563
18556993226,4cyclictest41-21ksoftirqd/308:57:173
18556993226,3cyclictest41-21ksoftirqd/311:06:593
18556993226,3cyclictest41-21ksoftirqd/309:54:043
18556993225,4cyclictest41-21ksoftirqd/309:32:313
18555993226,4cyclictest33-21ksoftirqd/212:17:552
18555993226,4cyclictest33-21ksoftirqd/212:17:552
18555993226,4cyclictest33-21ksoftirqd/210:25:542
18555993226,4cyclictest33-21ksoftirqd/209:47:472
18555993226,4cyclictest33-21ksoftirqd/208:53:552
1855599321,28cyclictest25929-21cat11:45:002
18554993227,3cyclictest25-21ksoftirqd/107:22:311
18554993226,4cyclictest25-21ksoftirqd/112:28:211
18554993226,4cyclictest25-21ksoftirqd/111:30:561
18554993226,4cyclictest25-21ksoftirqd/111:20:091
18554993226,4cyclictest25-21ksoftirqd/110:51:041
18554993226,4cyclictest25-21ksoftirqd/110:01:501
18554993226,4cyclictest25-21ksoftirqd/107:52:361
18553993227,3cyclictest9-21ksoftirqd/012:14:030
18553993227,3cyclictest9-21ksoftirqd/011:33:270
18553993227,3cyclictest9-21ksoftirqd/009:59:240
18553993227,3cyclictest9-21ksoftirqd/008:03:140
18553993227,3cyclictest9-21ksoftirqd/007:38:230
18553993226,4cyclictest9-21ksoftirqd/010:39:440
18553993226,4cyclictest9-21ksoftirqd/008:53:050
18556993126,3cyclictest41-21ksoftirqd/310:36:113
18556993126,3cyclictest41-21ksoftirqd/307:53:473
18556993125,4cyclictest41-21ksoftirqd/312:17:073
18556993125,4cyclictest41-21ksoftirqd/312:17:063
18556993125,4cyclictest41-21ksoftirqd/312:05:123
18556993125,4cyclictest41-21ksoftirqd/311:58:263
18556993125,4cyclictest41-21ksoftirqd/308:28:463
18556993125,4cyclictest41-21ksoftirqd/308:24:523
18555993126,3cyclictest33-21ksoftirqd/212:38:082
18555993126,3cyclictest33-21ksoftirqd/212:01:182
18555993126,3cyclictest33-21ksoftirqd/208:49:162
18555993125,4cyclictest33-21ksoftirqd/212:26:492
18555993125,4cyclictest33-21ksoftirqd/211:24:192
18555993125,4cyclictest33-21ksoftirqd/210:58:062
18554993126,3cyclictest25-21ksoftirqd/107:13:551
18554993125,4cyclictest25-21ksoftirqd/108:18:321
18553993126,3cyclictest9-21ksoftirqd/009:30:400
18553993125,4cyclictest9-21ksoftirqd/012:38:220
18553993125,4cyclictest9-21ksoftirqd/011:44:470
18553993125,4cyclictest9-21ksoftirqd/011:25:330
18553993125,4cyclictest9-21ksoftirqd/010:26:200
18553993125,4cyclictest9-21ksoftirqd/010:21:350
18553993125,4cyclictest9-21ksoftirqd/008:30:460
18553993125,4cyclictest9-21ksoftirqd/007:41:440
138491310,0ptp4l401ktimersoftd/310:45:413
138491310,0ptp4l401ktimersoftd/310:10:333
18556993025,3cyclictest41-21ksoftirqd/309:12:103
18556993024,4cyclictest41-21ksoftirqd/311:22:233
18556993024,4cyclictest41-21ksoftirqd/307:57:483
18556993023,4cyclictest41-21ksoftirqd/310:04:533
18555993025,3cyclictest33-21ksoftirqd/211:06:582
18555993025,3cyclictest33-21ksoftirqd/208:36:402
18555993025,3cyclictest33-21ksoftirqd/207:45:022
18555993024,4cyclictest33-21ksoftirqd/211:02:002
18555993024,4cyclictest33-21ksoftirqd/209:28:532
18555993023,4cyclictest33-21ksoftirqd/210:14:232
18555993011,16cyclictest27258-21sh08:30:122
1855599300,27cyclictest16229-21/usr/sbin/munin11:25:132
18554993025,3cyclictest25-21ksoftirqd/109:30:411
18554993025,3cyclictest25-21ksoftirqd/108:07:071
18554993024,4cyclictest25-21ksoftirqd/110:58:261
18554993024,4cyclictest25-21ksoftirqd/110:10:041
18554993024,4cyclictest25-21ksoftirqd/109:45:051
18554993024,4cyclictest25-21ksoftirqd/109:44:131
18554993024,4cyclictest25-21ksoftirqd/109:12:231
18554993023,4cyclictest25-21ksoftirqd/112:36:351
18554993022,5cyclictest25-21ksoftirqd/107:27:571
18553993025,3cyclictest9-21ksoftirqd/012:16:090
18553993025,3cyclictest9-21ksoftirqd/012:16:090
18553993025,3cyclictest9-21ksoftirqd/012:00:000
18553993025,3cyclictest9-21ksoftirqd/011:35:300
18553993025,3cyclictest9-21ksoftirqd/010:15:490
18553993025,3cyclictest9-21ksoftirqd/009:10:340
18553993025,3cyclictest9-21ksoftirqd/008:35:040
18553993025,3cyclictest9-21ksoftirqd/008:12:290
138491300,0ptp4l401ktimersoftd/307:29:033
18556992924,3cyclictest41-21ksoftirqd/309:45:143
18556992924,3cyclictest41-21ksoftirqd/309:03:563
18556992924,3cyclictest41-21ksoftirqd/307:12:553
18556992923,4cyclictest41-21ksoftirqd/312:21:493
18556992923,4cyclictest41-21ksoftirqd/309:29:513
18556992922,4cyclictest41-21ksoftirqd/309:38:213
18555992924,3cyclictest33-21ksoftirqd/209:10:102
18555992922,4cyclictest33-21ksoftirqd/207:28:542
1855599290,27cyclictest1319-21snmpd08:28:502
18554992924,3cyclictest25-21ksoftirqd/110:30:191
18554992924,3cyclictest25-21ksoftirqd/109:37:141
18554992924,3cyclictest25-21ksoftirqd/109:27:291
18554992924,3cyclictest25-21ksoftirqd/108:35:361
18554992924,3cyclictest25-21ksoftirqd/108:01:421
18554992924,3cyclictest25-21ksoftirqd/107:41:441
18554992923,4cyclictest25-21ksoftirqd/110:39:131
18554992923,4cyclictest25-21ksoftirqd/109:06:381
18553992924,3cyclictest9-21ksoftirqd/012:10:000
18553992924,3cyclictest9-21ksoftirqd/009:51:580
18553992924,3cyclictest9-21ksoftirqd/009:44:590
18553992924,3cyclictest9-21ksoftirqd/009:39:340
18553992923,4cyclictest9-21ksoftirqd/012:25:390
18553992923,4cyclictest9-21ksoftirqd/011:07:040
18553992923,4cyclictest9-21ksoftirqd/010:50:150
18553992923,4cyclictest9-21ksoftirqd/009:48:090
18553992923,4cyclictest9-21ksoftirqd/007:22:390
138491290,0ptp4l401ktimersoftd/312:02:423
18555992822,4cyclictest33-21ksoftirqd/210:52:302
18555992822,4cyclictest33-21ksoftirqd/210:44:552
1855599281,25cyclictest0-21swapper/211:35:362
1855599281,24cyclictest2315-21gnome-shell10:35:242
1855599281,24cyclictest11410-21df_abs12:20:142
1855599280,16cyclictest21889-21cstates08:20:132
18554992823,3cyclictest25-21ksoftirqd/111:16:561
18554992823,3cyclictest25-21ksoftirqd/109:50:571
18554992822,4cyclictest25-21ksoftirqd/110:19:191
18553992823,3cyclictest9-21ksoftirqd/009:18:590
18553992823,3cyclictest9-21ksoftirqd/008:28:180
18553992823,3cyclictest9-21ksoftirqd/007:30:120
18555992721,4cyclictest33-21ksoftirqd/207:50:082
1855599271,23cyclictest32573-21grep07:35:222
1855599271,23cyclictest17860-21ls12:30:262
1855599270,24cyclictest9220-21df11:10:132
18554992723,3cyclictest25-21ksoftirqd/110:45:221
18554992722,3cyclictest25-21ksoftirqd/111:51:571
18554992722,3cyclictest25-21ksoftirqd/111:46:531
18554992722,3cyclictest25-21ksoftirqd/111:25:501
18554992721,4cyclictest25-21ksoftirqd/109:02:201
18554992721,4cyclictest25-21ksoftirqd/108:57:391
18553992722,3cyclictest9-21ksoftirqd/010:41:560
18556992620,3cyclictest41-21ksoftirqd/309:58:083
1855599265,18cyclictest12062-21df_abs09:05:142
18554992621,3cyclictest25-21ksoftirqd/112:07:461
18554992619,4cyclictest25-21ksoftirqd/112:23:501
18553992621,3cyclictest9-21ksoftirqd/010:49:510
18553992620,4cyclictest9-21ksoftirqd/007:49:180
18556992520,3cyclictest41-21ksoftirqd/310:20:143
18554992520,3cyclictest25-21ksoftirqd/109:20:201
18553992519,4cyclictest9-21ksoftirqd/011:53:090
18554992419,3cyclictest25-21ksoftirqd/108:12:191
18554992418,4cyclictest25-21ksoftirqd/110:21:281
18553992422,1cyclictest0-21swapper/007:10:010
18553992419,3cyclictest9-21ksoftirqd/012:04:050
18553992418,4cyclictest9-21ksoftirqd/011:03:030
138491240,0ptp4l401ktimersoftd/309:40:253
18554992318,3cyclictest25-21ksoftirqd/111:10:121
18553992318,3cyclictest9-21ksoftirqd/009:25:000
18553992116,3cyclictest9-21ksoftirqd/008:15:440
18554992014,3cyclictest25-21ksoftirqd/107:34:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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