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2026-09-12 - 16:35
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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 rackdslot3.osadl.org (updated Sat Sep 12, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1755122450,8sleep20-21swapper/207:05:192
139491204170,23phc2sys0-21swapper/307:09:343
188012203171,22sleep00-21swapper/007:07:230
188592197163,22sleep10-21swapper/107:08:081
1853321640,5sleep31930799cyclictest11:35:183
118721520,6sleep21930699cyclictest11:00:152
1394918464,11phc2sys0-21swapper/307:10:013
134491840,1getstats0-21swapper/307:29:273
1930599680,22cyclictest6777-21cat12:20:001
139391660,1ptp4l401ktimersoftd/310:34:243
1930599650,23cyclictest24358-21cat09:35:001
1930599650,22cyclictest9236-21date12:25:001
1930599590,24cyclictest2397-21mailstats11:00:251
139391580,1ptp4l401ktimersoftd/308:02:543
136452580,3sleep0111rcuc/011:25:200
310312560,2sleep20-21swapper/212:00:242
139391550,1ptp4l401ktimersoftd/309:38:103
1930599541,23cyclictest25367-21chrt10:41:571
1930599540,22cyclictest31105-21taskset09:46:481
1930599540,22cyclictest22686-21taskset08:23:171
1930599530,20cyclictest21690-21seq09:28:261
1930599520,25cyclictest32554-21vmstat10:55:281
1930599490,24cyclictest0-21swapper/109:20:151
1930599480,22cyclictest28794-21chrt07:29:301
1930599461,21cyclictest11355-21chrt09:05:211
139391440,0ptp4l401ktimersoftd/310:16:123
139391440,0ptp4l401ktimersoftd/309:16:463
1930599430,21cyclictest352-21/usr/sbin/munin08:45:201
139391430,1ptp4l401ktimersoftd/309:12:453
134491430,1getstats0-21swapper/307:34:263
1930599411,23cyclictest26462-21chrt07:24:521
1930599410,25cyclictest1954-21chrt07:40:161
1930599410,25cyclictest1954-21chrt07:40:161
1930599410,22cyclictest3966-21chrt12:10:341
1930599401,23cyclictest31921-21df_abs09:50:181
1930599400,24cyclictest25479-21chrt08:30:071
1930599391,23cyclictest9986-21sed09:05:011
1930599391,21cyclictest7046-21timerwakeupswit08:55:261
139391390,1ptp4l401ktimersoftd/311:20:423
1930599381,26cyclictest0-21swapper/107:32:581
139391380,1ptp4l401ktimersoftd/309:44:133
139391380,0ptp4l401ktimersoftd/310:35:143
19307993732,3cyclictest17405-21cron11:35:003
19306993730,5cyclictest33-21ksoftirqd/209:59:252
19305993731,4cyclictest25-21ksoftirqd/111:07:371
19305993731,4cyclictest25-21ksoftirqd/108:42:221
1930599371,26cyclictest0-21swapper/110:19:211
1930599370,23cyclictest29508-21sed10:50:191
1930599370,23cyclictest2909-21dpkg08:50:001
1930599370,23cyclictest2909-21dpkg08:50:001
1930599370,22cyclictest28780-21taskset09:42:201
19307993630,4cyclictest41-21ksoftirqd/311:15:403
19307993630,4cyclictest41-21ksoftirqd/310:08:253
19306993631,3cyclictest33-21ksoftirqd/212:10:142
19306993630,4cyclictest33-21ksoftirqd/211:26:182
19306993630,4cyclictest33-21ksoftirqd/210:38:572
19306993630,4cyclictest33-21ksoftirqd/209:36:142
19305993631,3cyclictest25-21ksoftirqd/110:22:111
19305993630,3cyclictest25-21ksoftirqd/112:05:001
1930599361,26cyclictest11223-21runrttasks12:27:121
19304993631,3cyclictest9-21ksoftirqd/012:10:000
19304993629,4cyclictest9-21ksoftirqd/008:30:130
19307993529,4cyclictest41-21ksoftirqd/310:51:453
19307993529,4cyclictest41-21ksoftirqd/310:10:333
19306993529,4cyclictest33-21ksoftirqd/212:33:182
19306993529,4cyclictest33-21ksoftirqd/211:22:252
19306993529,4cyclictest33-21ksoftirqd/211:08:532
19306993529,4cyclictest33-21ksoftirqd/207:43:592
19306993529,4cyclictest33-21ksoftirqd/207:43:592
19306993528,5cyclictest33-21ksoftirqd/210:51:042
19306993528,5cyclictest33-21ksoftirqd/208:52:032
19306993528,5cyclictest33-21ksoftirqd/208:52:022
19305993529,4cyclictest25-21ksoftirqd/111:15:021
1930599351,20cyclictest18009-21df_abs11:35:141
1930599351,20cyclictest0-21swapper/109:36:081
1930599350,20cyclictest30003-21chrt08:37:371
19304993530,3cyclictest9-21ksoftirqd/010:30:150
19304993528,4cyclictest32575-21cron08:44:590
19307993429,3cyclictest41-21ksoftirqd/307:35:133
19307993428,4cyclictest41-21ksoftirqd/312:18:023
19307993428,4cyclictest41-21ksoftirqd/311:48:223
19307993428,4cyclictest41-21ksoftirqd/310:56:393
19307993428,4cyclictest41-21ksoftirqd/308:28:213
19306993429,3cyclictest33-21ksoftirqd/207:15:032
19306993428,4cyclictest33-21ksoftirqd/212:22:032
19306993428,4cyclictest33-21ksoftirqd/210:34:152
19306993428,4cyclictest33-21ksoftirqd/209:48:222
19306993428,4cyclictest33-21ksoftirqd/209:07:062
19305993428,4cyclictest25-21ksoftirqd/111:32:311
1930599341,16cyclictest0-21swapper/107:45:211
1930599341,16cyclictest0-21swapper/107:45:201
19304993429,3cyclictest9-21ksoftirqd/011:31:580
19304993426,4cyclictest9-21ksoftirqd/009:45:120
19307993328,3cyclictest41-21ksoftirqd/312:36:043
19307993327,4cyclictest41-21ksoftirqd/311:11:113
19307993327,4cyclictest41-21ksoftirqd/310:42:113
19307993327,4cyclictest41-21ksoftirqd/309:28:053
19307993326,5cyclictest41-21ksoftirqd/312:09:363
19306993328,3cyclictest33-21ksoftirqd/210:55:502
19306993327,4cyclictest33-21ksoftirqd/210:19:392
19306993327,4cyclictest33-21ksoftirqd/210:10:332
19306993327,4cyclictest33-21ksoftirqd/209:19:392
19306993327,4cyclictest33-21ksoftirqd/208:32:042
19306993327,4cyclictest33-21ksoftirqd/208:21:492
19306993327,4cyclictest33-21ksoftirqd/208:07:182
19306993327,3cyclictest33-21ksoftirqd/207:35:132
19306993326,5cyclictest33-21ksoftirqd/210:24:122
19306993326,4cyclictest33-21ksoftirqd/209:01:402
19305993327,4cyclictest25-21ksoftirqd/111:21:041
19305993327,4cyclictest25-21ksoftirqd/108:19:071
19305993327,4cyclictest25-21ksoftirqd/107:35:581
1930599330,2cyclictest0-21swapper/111:58:041
19304993328,3cyclictest9-21ksoftirqd/010:00:120
19304993327,4cyclictest9-21ksoftirqd/011:36:430
19304993327,4cyclictest9-21ksoftirqd/009:52:490
19304993327,4cyclictest9-21ksoftirqd/009:21:290
19304993327,4cyclictest9-21ksoftirqd/009:05:320
19304993327,4cyclictest9-21ksoftirqd/008:45:120
19304993327,4cyclictest9-21ksoftirqd/007:30:480
19304993327,4cyclictest9-21ksoftirqd/007:22:180
19304993326,4cyclictest9-21ksoftirqd/012:23:590
139391330,1ptp4l401ktimersoftd/308:35:023
19307993227,3cyclictest41-21ksoftirqd/308:16:013
19307993227,3cyclictest41-21ksoftirqd/307:43:123
19307993227,3cyclictest41-21ksoftirqd/307:43:123
19307993226,4cyclictest41-21ksoftirqd/311:59:373
19307993226,4cyclictest41-21ksoftirqd/309:07:563
19306993227,3cyclictest33-21ksoftirqd/210:29:542
19306993227,3cyclictest33-21ksoftirqd/209:42:422
19306993226,4cyclictest33-21ksoftirqd/210:01:262
19306993226,4cyclictest33-21ksoftirqd/208:45:372
19306993226,4cyclictest33-21ksoftirqd/208:36:052
19306993225,5cyclictest33-21ksoftirqd/208:13:562
19305993227,3cyclictest25-21ksoftirqd/111:53:521
19305993227,3cyclictest25-21ksoftirqd/111:26:161
19305993226,4cyclictest25-21ksoftirqd/110:30:581
19305993226,4cyclictest25-21ksoftirqd/110:27:521
19305993226,4cyclictest25-21ksoftirqd/107:19:031
19305993213,16cyclictest7316-21sed07:50:221
19304993226,4cyclictest9-21ksoftirqd/011:08:510
19304993226,4cyclictest9-21ksoftirqd/010:27:070
19304993226,4cyclictest9-21ksoftirqd/008:57:130
19304993226,4cyclictest9-21ksoftirqd/007:27:310
19304993226,3cyclictest9-21ksoftirqd/011:15:000
139391320,0ptp4l401ktimersoftd/312:22:153
139391320,0ptp4l401ktimersoftd/310:28:453
19307993126,3cyclictest41-21ksoftirqd/310:47:203
19307993125,4cyclictest41-21ksoftirqd/311:07:423
19307993125,4cyclictest41-21ksoftirqd/310:01:113
19307993125,4cyclictest41-21ksoftirqd/308:47:173
19307993125,4cyclictest41-21ksoftirqd/307:16:523
19306993125,4cyclictest33-21ksoftirqd/212:29:592
19306993125,4cyclictest33-21ksoftirqd/212:16:052
19306993125,4cyclictest33-21ksoftirqd/209:26:002
19306993125,4cyclictest33-21ksoftirqd/208:04:562
19306993125,4cyclictest33-21ksoftirqd/207:53:082
19306993125,4cyclictest33-21ksoftirqd/207:12:412
19305993125,4cyclictest25-21ksoftirqd/112:36:261
19305993125,4cyclictest25-21ksoftirqd/112:06:291
19305993125,4cyclictest25-21ksoftirqd/110:47:381
1930599312,25cyclictest2518-21gnome-shell12:31:591
1930599311,20cyclictest207-21systemd-journal08:02:411
19304993127,3cyclictest9-21ksoftirqd/011:55:250
19304993126,3cyclictest9-21ksoftirqd/012:18:520
19304993126,3cyclictest9-21ksoftirqd/011:02:420
19304993126,3cyclictest9-21ksoftirqd/010:56:270
19304993126,3cyclictest9-21ksoftirqd/009:56:210
19304993126,3cyclictest9-21ksoftirqd/007:52:140
19304993126,3cyclictest9-21ksoftirqd/007:49:510
19304993126,3cyclictest9-21ksoftirqd/007:49:500
19304993126,3cyclictest9-21ksoftirqd/007:10:140
19304993125,4cyclictest9-21ksoftirqd/011:48:000
19304993125,4cyclictest9-21ksoftirqd/010:47:130
19304993125,4cyclictest9-21ksoftirqd/009:31:470
19304993125,4cyclictest9-21ksoftirqd/008:35:350
19304993125,4cyclictest9-21ksoftirqd/008:11:170
19304993125,4cyclictest9-21ksoftirqd/007:41:080
19304993125,4cyclictest9-21ksoftirqd/007:41:080
139391310,0ptp4l401ktimersoftd/309:50:183
139391310,0ptp4l401ktimersoftd/308:07:583
19307993025,3cyclictest41-21ksoftirqd/307:55:043
19307993024,4cyclictest41-21ksoftirqd/312:30:463
19307993024,4cyclictest41-21ksoftirqd/312:13:053
19307993024,4cyclictest41-21ksoftirqd/311:29:043
19307993024,4cyclictest41-21ksoftirqd/309:24:203
19307993024,4cyclictest41-21ksoftirqd/308:31:183
19306993026,3cyclictest33-21ksoftirqd/209:24:252
19306993025,3cyclictest33-21ksoftirqd/211:54:232
19306993025,3cyclictest33-21ksoftirqd/211:33:452
19306993025,3cyclictest33-21ksoftirqd/210:49:572
19306993025,3cyclictest33-21ksoftirqd/208:27:452
19306993025,3cyclictest33-21ksoftirqd/207:31:092
19306993024,4cyclictest33-21ksoftirqd/211:46:482
19306993024,4cyclictest33-21ksoftirqd/211:16:402
19306993024,4cyclictest33-21ksoftirqd/210:42:542
19306993024,4cyclictest33-21ksoftirqd/209:32:332
19305993025,3cyclictest25-21ksoftirqd/109:13:351
19305993024,4cyclictest25-21ksoftirqd/111:10:451
19305993024,4cyclictest25-21ksoftirqd/109:59:401
19305993024,4cyclictest25-21ksoftirqd/109:17:241
19305993024,4cyclictest25-21ksoftirqd/108:13:331
19304993025,3cyclictest9-21ksoftirqd/012:36:140
19304993025,3cyclictest9-21ksoftirqd/011:23:320
19304993025,3cyclictest9-21ksoftirqd/010:37:380
19304993025,3cyclictest9-21ksoftirqd/009:10:070
19304993024,4cyclictest9-21ksoftirqd/012:11:590
19304993024,4cyclictest9-21ksoftirqd/011:53:120
19304993024,4cyclictest9-21ksoftirqd/010:15:330
19304993024,4cyclictest9-21ksoftirqd/009:01:500
139391300,9ptp4l401ktimersoftd/309:47:153
139391300,0ptp4l401ktimersoftd/309:02:303
139391300,0ptp4l401ktimersoftd/308:22:513
19307992924,3cyclictest41-21ksoftirqd/312:00:353
19307992924,3cyclictest41-21ksoftirqd/307:47:493
19307992924,3cyclictest41-21ksoftirqd/307:47:493
19307992923,4cyclictest41-21ksoftirqd/307:51:023
19306992924,3cyclictest33-21ksoftirqd/212:38:312
19306992924,3cyclictest33-21ksoftirqd/209:50:032
19305992913,14cyclictest21084-21vmstat07:10:321
19304992924,3cyclictest9-21ksoftirqd/012:25:420
19304992924,3cyclictest9-21ksoftirqd/009:15:540
19304992924,3cyclictest9-21ksoftirqd/008:02:240
19304992924,3cyclictest9-21ksoftirqd/007:35:330
19304992923,4cyclictest9-21ksoftirqd/010:10:560
139391290,0ptp4l401ktimersoftd/311:03:183
139391290,0ptp4l401ktimersoftd/310:21:363
139391290,0ptp4l401ktimersoftd/308:52:553
139391290,0ptp4l401ktimersoftd/308:52:553
139391290,0ptp4l401ktimersoftd/308:40:243
139391290,0ptp4l401ktimersoftd/308:11:513
19307992823,3cyclictest41-21ksoftirqd/312:29:553
19307992821,3cyclictest41-21ksoftirqd/309:55:313
19306992823,3cyclictest33-21ksoftirqd/209:13:202
19306992823,3cyclictest33-21ksoftirqd/207:27:032
19306992822,4cyclictest33-21ksoftirqd/210:06:592
19306992822,4cyclictest33-21ksoftirqd/207:45:542
19306992822,4cyclictest33-21ksoftirqd/207:45:542
19305992823,3cyclictest25-21ksoftirqd/110:06:291
19305992823,3cyclictest25-21ksoftirqd/108:27:331
19305992822,4cyclictest25-21ksoftirqd/110:11:441
19305992822,4cyclictest25-21ksoftirqd/110:04:341
1930599281,24cyclictest13986-21fschecks_count08:05:151
19305992810,15cyclictest11178-21date08:00:011
19304992823,3cyclictest9-21ksoftirqd/011:17:180
19304992823,3cyclictest9-21ksoftirqd/008:05:190
19306992722,3cyclictest33-21ksoftirqd/208:40:102
19306992722,3cyclictest33-21ksoftirqd/208:18:362
19306992721,4cyclictest33-21ksoftirqd/211:59:132
19306992721,4cyclictest33-21ksoftirqd/207:58:542
19305992722,3cyclictest25-21ksoftirqd/111:48:561
1930599271,22cyclictest2518-21gnome-shell11:40:581
19304992722,3cyclictest9-21ksoftirqd/008:20:100
19304992721,4cyclictest9-21ksoftirqd/010:24:020
19304992721,4cyclictest9-21ksoftirqd/008:51:410
19304992721,4cyclictest9-21ksoftirqd/008:51:410
19304992721,4cyclictest9-21ksoftirqd/008:17:350
19307992621,3cyclictest41-21ksoftirqd/309:34:243
19307992620,4cyclictest41-21ksoftirqd/311:52:033
19306992621,3cyclictest33-21ksoftirqd/211:42:082
19306992621,3cyclictest33-21ksoftirqd/211:35:502
19306992621,3cyclictest33-21ksoftirqd/211:10:212
19306992621,3cyclictest33-21ksoftirqd/208:57:252
19306992620,4cyclictest33-21ksoftirqd/207:21:032
19306992620,3cyclictest33-21ksoftirqd/212:09:302
19305992620,4cyclictest25-21ksoftirqd/110:36:191
19304992621,3cyclictest9-21ksoftirqd/012:32:360
19304992621,3cyclictest9-21ksoftirqd/010:41:590
19304992621,3cyclictest9-21ksoftirqd/009:42:500
19304992621,3cyclictest9-21ksoftirqd/008:25:200
19304992620,4cyclictest9-21ksoftirqd/012:04:150
19304992620,4cyclictest9-21ksoftirqd/007:17:480
19304992520,3cyclictest9-21ksoftirqd/010:52:270
19304992520,3cyclictest9-21ksoftirqd/009:37:470
19307992419,3cyclictest41-21ksoftirqd/307:21:213
139391240,0ptp4l401ktimersoftd/311:40:133
139391230,0ptp4l401ktimersoftd/308:55:133
19304992217,3cyclictest9-21ksoftirqd/010:05:280
19304992217,3cyclictest9-21ksoftirqd/007:55:390
19304992216,4cyclictest9-21ksoftirqd/009:28:430
19304992014,4cyclictest9-21ksoftirqd/011:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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