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2025-12-20 - 11:04
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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 rackdslot3.osadl.org (updated Sat Dec 20, 2025 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175042206172,23sleep30-21swapper/319:08:113
175042206172,23sleep30-21swapper/319:08:113
173652204170,22sleep10-21swapper/119:06:201
173652204170,22sleep10-21swapper/119:06:201
173012202169,22sleep20-21swapper/219:05:382
173012202169,22sleep20-21swapper/219:05:372
173042200167,22sleep00-21swapper/019:05:400
173042200167,22sleep00-21swapper/019:05:390
281321450,7sleep11793899cyclictest19:45:151
123072620,4sleep233-21ksoftirqd/222:20:122
139391600,1ptp4l401ktimersoftd/323:33:463
211112530,4sleep341-21ksoftirqd/321:30:193
1793999511,17cyclictest207-21systemd-journal21:55:082
17939994911,4cyclictest33-21ksoftirqd/221:44:202
1793999486,7cyclictest10639-21sed20:00:192
139391450,0ptp4l401ktimersoftd/323:36:473
17939994412,3cyclictest33-21ksoftirqd/220:19:402
139391430,0ptp4l401ktimersoftd/322:43:583
139391430,0ptp4l401ktimersoftd/319:44:553
139391430,0ptp4l401ktimersoftd/300:36:223
139391420,1ptp4l401ktimersoftd/320:31:073
139391420,0ptp4l401ktimersoftd/300:29:323
139391420,0ptp4l401ktimersoftd/300:29:323
17939994117,9cyclictest33-21ksoftirqd/220:55:202
17938994136,3cyclictest6800-21grep00:25:001
17939994015,8cyclictest33-21ksoftirqd/223:40:202
17939994014,3cyclictest33-21ksoftirqd/223:05:102
139391400,34ptp4l0-21swapper/319:10:023
139391400,0ptp4l401ktimersoftd/322:55:193
17939993932,4cyclictest33-21ksoftirqd/200:25:002
17939993921,7cyclictest33-21ksoftirqd/219:32:432
17937993917,20cyclictest2269-21grep23:05:230
17940993832,4cyclictest41-21ksoftirqd/320:00:003
17939993834,3cyclictest311rcuc/220:37:322
17939993831,4cyclictest33-21ksoftirqd/222:57:592
17939993820,9cyclictest33-21ksoftirqd/222:00:542
17939993818,8cyclictest33-21ksoftirqd/200:05:012
1793999377,5cyclictest33-21ksoftirqd/223:10:272
17939993721,8cyclictest33-21ksoftirqd/219:45:512
17939993720,4cyclictest33-21ksoftirqd/221:21:192
17938993731,3cyclictest25-21ksoftirqd/120:40:001
17937993731,4cyclictest12623-21latency_hist23:30:000
1793799371,15cyclictest1968-21cron00:15:000
17940993630,4cyclictest41-21ksoftirqd/321:41:023
17940993628,5cyclictest30941-21cron20:45:003
17939993630,4cyclictest33-21ksoftirqd/219:57:582
1793999361,5cyclictest33-21ksoftirqd/223:48:322
17938993631,3cyclictest25-21ksoftirqd/120:25:121
17938993631,3cyclictest25-21ksoftirqd/100:13:311
17938993630,4cyclictest25-21ksoftirqd/122:42:301
17938993630,4cyclictest25-21ksoftirqd/121:12:441
17938993630,4cyclictest25-21ksoftirqd/121:04:141
17938993630,4cyclictest25-21ksoftirqd/119:17:201
17937993631,3cyclictest9-21ksoftirqd/023:25:000
17937993631,3cyclictest9-21ksoftirqd/022:36:350
17937993612,3cyclictest15253-21idleruntime-cro21:20:000
17940993530,3cyclictest41-21ksoftirqd/322:09:583
17940993530,3cyclictest41-21ksoftirqd/320:20:003
17940993529,4cyclictest41-21ksoftirqd/319:33:583
17940993528,4cyclictest41-21ksoftirqd/323:26:583
17940993524,9cyclictest41-21ksoftirqd/321:10:243
1793999353,4cyclictest33-21ksoftirqd/222:49:192
17939993530,3cyclictest33-21ksoftirqd/221:50:082
17939993529,4cyclictest33-21ksoftirqd/222:05:402
17939993529,4cyclictest33-21ksoftirqd/221:03:552
17938993530,3cyclictest25-21ksoftirqd/123:25:111
17938993529,4cyclictest25-21ksoftirqd/123:38:331
17938993529,4cyclictest25-21ksoftirqd/122:24:451
17938993529,4cyclictest25-21ksoftirqd/122:03:351
17938993529,4cyclictest25-21ksoftirqd/120:24:021
17938993529,4cyclictest25-21ksoftirqd/119:22:491
17937993529,4cyclictest9-21ksoftirqd/000:27:230
17937993529,4cyclictest9-21ksoftirqd/000:27:220
17937993528,5cyclictest9-21ksoftirqd/022:47:020
17937993511,3cyclictest5075-21grep00:20:180
57898340,10rtkit-daemon590-21gmain20:28:140
17940993430,2cyclictest41-21ksoftirqd/322:50:073
17940993429,3cyclictest41-21ksoftirqd/320:06:043
17940993428,4cyclictest41-21ksoftirqd/323:48:353
17940993428,4cyclictest41-21ksoftirqd/322:28:403
17940993428,4cyclictest41-21ksoftirqd/321:21:533
17939993431,2cyclictest311rcuc/223:55:222
17939993429,3cyclictest33-21ksoftirqd/200:27:522
17939993429,3cyclictest33-21ksoftirqd/200:27:522
17939993419,4cyclictest33-21ksoftirqd/222:40:152
17938993428,4cyclictest25-21ksoftirqd/123:52:531
17938993428,4cyclictest25-21ksoftirqd/123:33:001
17938993428,4cyclictest25-21ksoftirqd/123:16:511
17938993428,4cyclictest25-21ksoftirqd/121:46:181
17938993428,4cyclictest25-21ksoftirqd/121:22:391
17938993428,4cyclictest25-21ksoftirqd/119:50:491
17937993428,4cyclictest9-21ksoftirqd/022:23:030
17937993428,4cyclictest9-21ksoftirqd/020:36:040
17937993427,5cyclictest9-21ksoftirqd/020:19:560
17937993412,3cyclictest25569-21fschecks_time19:25:150
17937993412,3cyclictest22780-21sendmail_mailst22:40:250
17940993328,3cyclictest41-21ksoftirqd/323:41:363
17940993327,4cyclictest41-21ksoftirqd/323:18:253
17940993327,4cyclictest41-21ksoftirqd/320:28:333
17940993327,4cyclictest41-21ksoftirqd/320:12:093
17940993327,3cyclictest41-21ksoftirqd/319:50:593
17939993327,4cyclictest33-21ksoftirqd/220:33:062
17939993327,4cyclictest33-21ksoftirqd/219:23:012
1793999331,4cyclictest33-21ksoftirqd/219:39:542
17938993328,3cyclictest25-21ksoftirqd/123:21:331
17938993328,3cyclictest25-21ksoftirqd/123:01:151
17938993327,4cyclictest25-21ksoftirqd/121:41:481
17938993327,4cyclictest25-21ksoftirqd/119:26:331
17938993327,4cyclictest25-21ksoftirqd/119:13:501
17937993327,4cyclictest9-21ksoftirqd/022:26:400
17937993327,4cyclictest9-21ksoftirqd/022:07:270
17937993327,4cyclictest9-21ksoftirqd/021:47:130
17937993327,4cyclictest9-21ksoftirqd/019:18:020
17937993326,4cyclictest9-21ksoftirqd/022:54:400
17937993311,2cyclictest77892sleep021:01:170
17940993228,3cyclictest41-21ksoftirqd/300:05:003
17940993228,2cyclictest41-21ksoftirqd/319:39:303
17940993227,3cyclictest41-21ksoftirqd/323:55:143
17940993227,3cyclictest41-21ksoftirqd/322:49:023
17940993227,3cyclictest41-21ksoftirqd/322:30:143
17940993227,3cyclictest22341-21acpi23:50:093
17940993226,4cyclictest41-21ksoftirqd/321:57:113
17940993226,4cyclictest41-21ksoftirqd/320:22:043
17940993226,4cyclictest41-21ksoftirqd/319:45:533
17940993226,4cyclictest41-21ksoftirqd/319:16:213
17940993226,4cyclictest41-21ksoftirqd/300:14:093
1793999324,4cyclictest33-21ksoftirqd/220:45:242
1793999323,4cyclictest33-21ksoftirqd/222:39:562
17939993226,4cyclictest33-21ksoftirqd/223:33:542
17939993226,4cyclictest33-21ksoftirqd/220:41:412
17939993226,4cyclictest33-21ksoftirqd/200:11:372
17938993228,2cyclictest25-21ksoftirqd/123:49:591
17938993227,3cyclictest25-21ksoftirqd/122:55:581
17938993227,3cyclictest25-21ksoftirqd/121:57:001
17938993227,3cyclictest25-21ksoftirqd/100:35:131
17938993226,4cyclictest25-21ksoftirqd/122:48:561
17938993226,4cyclictest25-21ksoftirqd/122:32:191
17938993226,4cyclictest25-21ksoftirqd/121:50:351
17938993226,4cyclictest25-21ksoftirqd/120:40:431
17938993226,4cyclictest25-21ksoftirqd/120:32:411
17938993226,4cyclictest25-21ksoftirqd/119:58:281
17938993226,3cyclictest25-21ksoftirqd/100:05:131
1793799329,3cyclictest7312-21tr19:55:140
17937993227,3cyclictest9-21ksoftirqd/021:05:120
17937993227,3cyclictest9-21ksoftirqd/000:33:240
17937993226,4cyclictest9-21ksoftirqd/023:54:140
17937993226,4cyclictest9-21ksoftirqd/023:03:420
17937993226,4cyclictest9-21ksoftirqd/021:43:120
17937993226,4cyclictest9-21ksoftirqd/021:37:180
17937993226,4cyclictest9-21ksoftirqd/020:52:570
17937993226,4cyclictest9-21ksoftirqd/000:03:000
17937993211,3cyclictest31159-21rt-features19:35:260
62562310,2sleep30-21swapper/321:00:143
17940993127,3cyclictest41-21ksoftirqd/322:20:003
17940993127,2cyclictest41-21ksoftirqd/319:25:183
17940993126,3cyclictest41-21ksoftirqd/322:10:173
17940993125,4cyclictest41-21ksoftirqd/323:01:403
17940993125,4cyclictest41-21ksoftirqd/322:01:003
17940993125,4cyclictest41-21ksoftirqd/321:50:133
17940993125,4cyclictest41-21ksoftirqd/320:00:493
17940993125,3cyclictest41-21ksoftirqd/321:35:123
17939993126,3cyclictest33-21ksoftirqd/222:52:082
17939993125,4cyclictest33-21ksoftirqd/223:37:552
17939993125,4cyclictest33-21ksoftirqd/222:26:302
17939993125,4cyclictest33-21ksoftirqd/221:18:072
17939993125,4cyclictest33-21ksoftirqd/220:21:422
17939993125,4cyclictest33-21ksoftirqd/220:08:512
17939993125,4cyclictest33-21ksoftirqd/200:34:312
17939993125,3cyclictest33-21ksoftirqd/221:30:002
17939993116,3cyclictest33-21ksoftirqd/223:19:382
17938993126,3cyclictest25-21ksoftirqd/123:56:231
17938993126,3cyclictest25-21ksoftirqd/122:20:001
17938993126,3cyclictest25-21ksoftirqd/120:09:541
17938993126,3cyclictest25-21ksoftirqd/119:35:131
17938993126,3cyclictest25-21ksoftirqd/119:35:001
17938993125,4cyclictest25-21ksoftirqd/123:10:501
17938993125,4cyclictest25-21ksoftirqd/123:06:011
17938993125,4cyclictest25-21ksoftirqd/122:13:051
17938993125,4cyclictest25-21ksoftirqd/121:35:311
17938993125,4cyclictest25-21ksoftirqd/121:19:141
17938993125,4cyclictest25-21ksoftirqd/120:03:561
17937993126,3cyclictest18787-21cron22:35:010
17937993125,4cyclictest9-21ksoftirqd/023:41:500
17937993125,4cyclictest9-21ksoftirqd/021:33:370
17937993125,4cyclictest9-21ksoftirqd/020:48:280
17937993125,4cyclictest9-21ksoftirqd/019:14:370
17937993110,3cyclictest8140-21proc_pri22:10:240
139391310,0ptp4l401ktimersoftd/323:21:393
17940993025,3cyclictest41-21ksoftirqd/323:06:113
17940993025,3cyclictest41-21ksoftirqd/320:59:203
17940993025,3cyclictest41-21ksoftirqd/320:37:323
17939993025,3cyclictest33-21ksoftirqd/223:00:112
17939993024,4cyclictest33-21ksoftirqd/220:25:562
17939993024,4cyclictest33-21ksoftirqd/200:36:202
17939993014,8cyclictest33-21ksoftirqd/221:06:582
17939993012,8cyclictest33-21ksoftirqd/220:10:232
17938993025,3cyclictest25-21ksoftirqd/123:44:591
17938993025,3cyclictest25-21ksoftirqd/122:36:341
17938993025,3cyclictest25-21ksoftirqd/122:25:121
17938993025,3cyclictest25-21ksoftirqd/100:25:111
17938993025,3cyclictest25-21ksoftirqd/100:25:111
17938993024,4cyclictest25-21ksoftirqd/122:53:531
17938993024,4cyclictest25-21ksoftirqd/122:06:431
17938993024,4cyclictest25-21ksoftirqd/121:33:381
17938993024,4cyclictest25-21ksoftirqd/120:56:161
17937993025,3cyclictest9-21ksoftirqd/022:56:390
17937993025,3cyclictest9-21ksoftirqd/019:41:080
17937993025,3cyclictest9-21ksoftirqd/000:17:120
17937993024,4cyclictest9-21ksoftirqd/023:48:560
17937993024,4cyclictest9-21ksoftirqd/019:21:430
17937993012,3cyclictest5481-21ps19:50:180
139391300,0ptp4l401ktimersoftd/321:45:153
139391300,0ptp4l401ktimersoftd/321:05:143
139391300,0ptp4l401ktimersoftd/319:23:463
17940992924,3cyclictest41-21ksoftirqd/320:50:173
17940992924,3cyclictest41-21ksoftirqd/300:32:163
17938992924,3cyclictest25-21ksoftirqd/120:53:431
17938992924,3cyclictest25-21ksoftirqd/120:18:161
17938992924,3cyclictest25-21ksoftirqd/100:00:121
17938992923,4cyclictest25-21ksoftirqd/121:07:351
17938992923,4cyclictest25-21ksoftirqd/100:16:521
17937992923,4cyclictest9-21ksoftirqd/023:39:580
17937992923,4cyclictest9-21ksoftirqd/020:03:190
17937992923,3cyclictest9-21ksoftirqd/021:58:100
139391290,0ptp4l401ktimersoftd/300:21:363
17940992823,3cyclictest41-21ksoftirqd/322:36:253
17940992823,3cyclictest41-21ksoftirqd/321:26:193
17940992823,3cyclictest41-21ksoftirqd/321:19:493
17940992823,3cyclictest41-21ksoftirqd/320:48:593
17940992822,4cyclictest41-21ksoftirqd/323:11:083
17940992822,4cyclictest41-21ksoftirqd/322:24:513
1793999285,22cyclictest16447-21kworker/2:219:10:212
17939992825,2cyclictest311rcuc/219:54:232
17939992823,3cyclictest33-21ksoftirqd/223:54:442
17939992823,3cyclictest33-21ksoftirqd/223:28:492
17939992822,4cyclictest33-21ksoftirqd/222:18:042
17939992813,8cyclictest33-21ksoftirqd/221:10:132
17937992823,3cyclictest9-21ksoftirqd/023:15:490
17937992823,3cyclictest9-21ksoftirqd/022:16:250
17937992822,4cyclictest9-21ksoftirqd/023:58:310
17937992822,4cyclictest9-21ksoftirqd/023:34:160
17937992822,4cyclictest9-21ksoftirqd/020:42:380
17940992722,3cyclictest41-21ksoftirqd/300:18:053
17940992722,3cyclictest41-21ksoftirqd/300:04:593
1793999274,8cyclictest33-21ksoftirqd/200:00:502
17939992722,3cyclictest33-21ksoftirqd/219:28:392
17939992722,3cyclictest33-21ksoftirqd/219:16:122
17939992721,4cyclictest33-21ksoftirqd/221:35:522
17939992721,4cyclictest33-21ksoftirqd/221:32:112
17939992721,4cyclictest33-21ksoftirqd/220:54:242
17938992722,3cyclictest25-21ksoftirqd/119:41:581
17938992721,4cyclictest25-21ksoftirqd/100:35:011
17937992722,3cyclictest9-21ksoftirqd/022:01:470
17937992722,3cyclictest9-21ksoftirqd/019:32:520
17937992721,4cyclictest9-21ksoftirqd/000:08:360
1793999268,5cyclictest33-21ksoftirqd/222:30:202
1793999263,5cyclictest33-21ksoftirqd/223:20:122
17939992621,3cyclictest33-21ksoftirqd/219:44:312
17938992621,3cyclictest25-21ksoftirqd/120:49:001
17937992620,4cyclictest9-21ksoftirqd/021:21:140
17937992620,4cyclictest9-21ksoftirqd/000:39:070
1793999259,6cyclictest33-21ksoftirqd/221:49:202
1793999258,6cyclictest33-21ksoftirqd/200:15:252
17937992520,3cyclictest9-21ksoftirqd/021:54:230
17937992520,3cyclictest9-21ksoftirqd/021:13:390
17937992520,3cyclictest9-21ksoftirqd/019:47:340
17937992519,4cyclictest9-21ksoftirqd/020:21:440
17937992418,4cyclictest9-21ksoftirqd/020:10:000
17939992317,4cyclictest33-21ksoftirqd/222:11:312
17937992317,4cyclictest9-21ksoftirqd/023:14:460
17938992219,2cyclictest25-21ksoftirqd/121:25:161
17938991914,3cyclictest25-21ksoftirqd/120:10:181
17937991914,3cyclictest4097-21sh20:55:180
1793799189,3cyclictest18374-21uniq21:25:160
17937991813,3cyclictest25322-21processes20:30:240
17937991614,1cyclictest0-21swapper/020:13:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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