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2026-08-09 - 01:57
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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 Aug 08, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491203147,45phc2sys0-21swapper/307:05:593
172102198163,23sleep00-21swapper/007:08:540
170582198163,23sleep20-21swapper/207:06:552
172112196163,22sleep10-21swapper/107:08:551
1470821530,3sleep21759799cyclictest10:25:202
17596997317,54cyclictest0-21swapper/110:56:121
17596996617,47cyclictest0-21swapper/107:40:131
1759799651,62cyclictest13653-21kworker/2:211:05:322
1759799642,60cyclictest13653-21kworker/2:210:55:332
17596996411,51cyclictest0-21swapper/109:01:131
1759699630,61cyclictest0-21swapper/108:40:331
1759699609,49cyclictest0-21swapper/108:11:131
199122580,5sleep019916-21cpuspeed_turbos09:30:140
1759799577,11cyclictest18374-21sort09:25:182
1759699560,54cyclictest0-21swapper/109:40:531
1759699560,54cyclictest0-21swapper/109:40:531
1759799559,10cyclictest26300-21grep07:25:252
1759799558,7cyclictest26168-21processes11:55:262
1759799558,16cyclictest24259-21taskset07:21:192
1759699559,44cyclictest0-21swapper/110:10:531
139391540,46ptp4l0-21swapper/307:10:003
139391540,1ptp4l401ktimersoftd/309:39:213
1759799539,8cyclictest16618-21ssh11:35:282
17595995323,5cyclictest9-21ksoftirqd/011:43:430
1759699510,49cyclictest0-21swapper/108:35:531
1759799487,7cyclictest31770-21apt-get12:10:012
17596994815,32cyclictest0-21swapper/108:16:131
1759699480,47cyclictest0-21swapper/110:50:321
1759699470,45cyclictest0-21swapper/111:16:241
1759599456,8cyclictest0-21swapper/010:25:120
1759599450,6cyclictest26080-21cut10:50:140
1759799447,16cyclictest1300-21snmpd12:24:502
1759799446,7cyclictest1300-21snmpd07:52:432
17596994415,28cyclictest0-21swapper/108:20:431
139391440,1ptp4l401ktimersoftd/311:55:183
17596994336,4cyclictest3822-21latency_hist10:05:001
139391420,0ptp4l401ktimersoftd/311:41:483
1759699410,1cyclictest0-21swapper/111:50:531
1759599410,7cyclictest9-21ksoftirqd/010:00:100
139391410,0ptp4l401ktimersoftd/310:45:203
17596994010,29cyclictest0-21swapper/107:20:441
1759599405,7cyclictest9-21ksoftirqd/007:45:140
1759599401,5cyclictest9-21ksoftirqd/008:50:250
139391400,0ptp4l401ktimersoftd/310:05:303
17596993933,3cyclictest11700-21sh12:35:011
17596993933,3cyclictest11700-21sh12:35:011
17596993926,11cyclictest25-21ksoftirqd/110:05:081
1759699390,38cyclictest0-21swapper/110:45:321
17595993933,4cyclictest9-21ksoftirqd/007:30:010
1759599391,5cyclictest9-21ksoftirqd/007:40:150
1759599390,5cyclictest9-21ksoftirqd/008:21:200
1759799387,10cyclictest0-21swapper/210:14:332
1759799382,19cyclictest20856-21kworker/2:112:09:252
17596993831,4cyclictest25-21ksoftirqd/109:55:311
1759599384,15cyclictest15121-21tr09:20:140
1759599383,6cyclictest9-21ksoftirqd/012:25:260
1759599383,6cyclictest9-21ksoftirqd/011:00:250
1759599382,5cyclictest101ktimersoftd/007:35:180
1759599381,6cyclictest9-21ksoftirqd/007:10:250
1759599381,5cyclictest9-21ksoftirqd/011:25:230
17595993812,3cyclictest9-21ksoftirqd/011:23:340
1759599380,5cyclictest0-21swapper/009:04:260
17598993732,3cyclictest41-21ksoftirqd/311:10:013
17598993730,5cyclictest41-21ksoftirqd/310:22:413
17597993731,4cyclictest33-21ksoftirqd/209:13:522
17596993731,4cyclictest25-21ksoftirqd/107:57:451
1759699370,36cyclictest0-21swapper/107:17:131
1759599371,4cyclictest0-21swapper/010:33:120
139391370,0ptp4l401ktimersoftd/308:10:183
17598993630,4cyclictest41-21ksoftirqd/312:20:513
1759799369,11cyclictest27166-21/usr/sbin/munin07:30:192
1759799367,15cyclictest7192-21/usr/sbin/munin12:25:282
17597993630,4cyclictest33-21ksoftirqd/209:34:132
1759699368,26cyclictest0-21swapper/107:45:231
1759599364,8cyclictest9-21ksoftirqd/009:10:250
1759599363,7cyclictest9-21ksoftirqd/011:36:160
17595993631,3cyclictest9-21ksoftirqd/008:10:200
17595993630,4cyclictest9-21ksoftirqd/010:10:500
1759599362,4cyclictest9-21ksoftirqd/011:52:440
1759599360,5cyclictest9-21ksoftirqd/011:10:220
17598993530,3cyclictest41-21ksoftirqd/311:00:123
17598993529,4cyclictest41-21ksoftirqd/312:35:383
17598993529,4cyclictest41-21ksoftirqd/312:34:393
17598993529,4cyclictest41-21ksoftirqd/312:34:383
17598993529,4cyclictest41-21ksoftirqd/312:26:043
17598993529,4cyclictest41-21ksoftirqd/311:14:033
17598993529,4cyclictest41-21ksoftirqd/309:56:583
17598993529,4cyclictest41-21ksoftirqd/307:57:473
17598993528,4cyclictest41-21ksoftirqd/308:22:513
1759799359,15cyclictest207-21systemd-journal08:37:542
1759799358,15cyclictest1300-21snmpd11:28:242
1759799356,28cyclictest619-21kworker/2:108:50:322
17597993530,3cyclictest14714-21cron09:24:552
17597993529,4cyclictest33-21ksoftirqd/211:04:322
17597993529,4cyclictest33-21ksoftirqd/209:05:492
17597993529,4cyclictest33-21ksoftirqd/209:01:402
17596993530,3cyclictest25-21ksoftirqd/112:35:121
17596993529,4cyclictest25-21ksoftirqd/111:26:291
17596993529,4cyclictest25-21ksoftirqd/107:50:551
17596993528,4cyclictest25-21ksoftirqd/110:28:321
17596993528,4cyclictest25-21ksoftirqd/108:46:231
17596993517,6cyclictest0-21swapper/110:18:241
17596993517,6cyclictest0-21swapper/110:18:241
17596993513,20cyclictest25586-21sed08:35:001
17596993512,20cyclictest27480-21sed07:30:151
1759699350,33cyclictest0-21swapper/112:10:141
17595993529,4cyclictest9-21ksoftirqd/008:31:130
1759599352,7cyclictest9-21ksoftirqd/011:55:330
1759599352,5cyclictest9-21ksoftirqd/007:30:230
17598993429,3cyclictest41-21ksoftirqd/310:32:113
17598993428,4cyclictest41-21ksoftirqd/311:48:443
17598993428,4cyclictest41-21ksoftirqd/310:41:413
17598993428,4cyclictest41-21ksoftirqd/309:22:303
17598993427,4cyclictest41-21ksoftirqd/309:44:173
17598993427,4cyclictest41-21ksoftirqd/309:44:173
1759799343,28cyclictest15271-21kworker/2:208:15:232
17597993429,3cyclictest19678-21cron11:45:012
17597993428,4cyclictest33-21ksoftirqd/208:28:342
17597993428,3cyclictest14860-21cron11:35:012
17596993429,3cyclictest25-21ksoftirqd/109:49:451
17596993429,3cyclictest25-21ksoftirqd/109:49:451
17596993429,3cyclictest25-21ksoftirqd/107:10:511
17596993428,4cyclictest25-21ksoftirqd/110:21:541
17596993428,4cyclictest25-21ksoftirqd/109:51:171
17596993428,4cyclictest25-21ksoftirqd/108:58:301
17596993427,5cyclictest25-21ksoftirqd/111:34:301
17596993427,5cyclictest25-21ksoftirqd/108:06:191
17596993412,20cyclictest23363-21sed10:45:001
1759599343,7cyclictest9-21ksoftirqd/009:50:160
17595993428,4cyclictest9-21ksoftirqd/009:36:320
17595993427,4cyclictest9-21ksoftirqd/009:07:520
17595993427,4cyclictest9-21ksoftirqd/007:23:580
1759599342,3cyclictest9-21ksoftirqd/010:15:310
1759599342,3cyclictest9-21ksoftirqd/010:15:300
1759599341,4cyclictest9-21ksoftirqd/008:43:180
139391340,12ptp4l401ktimersoftd/311:30:283
139391340,0ptp4l401ktimersoftd/312:15:243
17598993328,3cyclictest41-21ksoftirqd/309:34:283
17598993328,3cyclictest41-21ksoftirqd/308:05:573
17598993327,4cyclictest41-21ksoftirqd/311:15:123
17598993327,4cyclictest41-21ksoftirqd/310:56:013
17598993327,4cyclictest41-21ksoftirqd/309:54:523
17598993327,4cyclictest41-21ksoftirqd/308:26:223
17598993327,4cyclictest41-21ksoftirqd/308:17:523
17598993327,4cyclictest41-21ksoftirqd/307:27:263
17598993327,3cyclictest14711-21cron09:20:003
1759799338,23cyclictest20856-21kworker/2:112:30:222
1759799338,23cyclictest20856-21kworker/2:112:30:212
17597993327,4cyclictest33-21ksoftirqd/209:57:522
17597993327,4cyclictest33-21ksoftirqd/209:36:382
17596993328,3cyclictest25-21ksoftirqd/109:05:111
17596993327,4cyclictest25-21ksoftirqd/112:18:001
17596993327,4cyclictest25-21ksoftirqd/111:22:121
17596993327,4cyclictest25-21ksoftirqd/111:10:081
17596993327,4cyclictest25-21ksoftirqd/109:21:321
17596993327,4cyclictest25-21ksoftirqd/109:12:141
17596993327,4cyclictest25-21ksoftirqd/107:39:151
1759599336,5cyclictest9-21ksoftirqd/009:45:310
1759599336,5cyclictest9-21ksoftirqd/009:45:310
1759599335,8cyclictest9-21ksoftirqd/011:45:200
17595993327,4cyclictest9-21ksoftirqd/009:29:380
17595993327,3cyclictest9-21ksoftirqd/007:53:320
1759599332,4cyclictest9-21ksoftirqd/010:05:490
1759599331,7cyclictest9-21ksoftirqd/012:14:190
1759599331,5cyclictest9-21ksoftirqd/010:43:380
17595993314,5cyclictest9-21ksoftirqd/012:05:270
139391330,12ptp4l401ktimersoftd/307:40:583
139391330,0ptp4l401ktimersoftd/310:25:263
17598993227,3cyclictest41-21ksoftirqd/307:45:103
17598993226,4cyclictest41-21ksoftirqd/312:05:503
17598993226,4cyclictest41-21ksoftirqd/311:53:063
17598993226,4cyclictest41-21ksoftirqd/309:27:243
1759799328,21cyclictest11198-21cron08:05:002
1759799327,13cyclictest29770-21ls08:40:262
17597993228,3cyclictest33-21ksoftirqd/210:45:392
17597993227,3cyclictest33-21ksoftirqd/209:55:002
17597993226,4cyclictest33-21ksoftirqd/212:00:402
17597993226,4cyclictest33-21ksoftirqd/211:15:462
17597993226,4cyclictest33-21ksoftirqd/209:45:412
17597993226,4cyclictest33-21ksoftirqd/209:45:402
17597993226,4cyclictest33-21ksoftirqd/207:58:102
1759699327,22cyclictest964-21cpuspeed_turbos11:05:151
17596993227,3cyclictest25-21ksoftirqd/112:01:551
17596993227,3cyclictest25-21ksoftirqd/108:00:131
17596993226,4cyclictest25-21ksoftirqd/110:31:011
17596993226,4cyclictest25-21ksoftirqd/109:29:421
17596993225,3cyclictest14710-21cron09:20:001
17596993218,12cyclictest0-21swapper/112:06:041
17596993213,17cyclictest26029-21pluginstate07:25:221
17596993210,4cyclictest7869-21irqrtprio12:25:201
17595993227,3cyclictest9-21ksoftirqd/012:38:290
17595993226,4cyclictest9-21ksoftirqd/009:42:020
17595993226,4cyclictest9-21ksoftirqd/009:42:020
17595993226,3cyclictest9-21ksoftirqd/012:18:460
17595993225,4cyclictest9-21ksoftirqd/010:35:090
17598993127,3cyclictest41-21ksoftirqd/308:34:383
17598993126,3cyclictest41-21ksoftirqd/307:32:403
17598993125,4cyclictest41-21ksoftirqd/308:01:323
17598993125,4cyclictest41-21ksoftirqd/307:17:353
17598993124,5cyclictest41-21ksoftirqd/307:51:373
17597993126,3cyclictest33-21ksoftirqd/208:11:252
17597993126,3cyclictest33-21ksoftirqd/207:15:132
17597993125,4cyclictest33-21ksoftirqd/208:22:212
17597993125,4cyclictest33-21ksoftirqd/208:06:522
1759799311,28cyclictest13653-21kworker/2:210:53:252
17596993125,4cyclictest25-21ksoftirqd/108:28:541
17596993115,14cyclictest18756-21phc2sys11:40:211
1759599315,5cyclictest9-21ksoftirqd/008:05:240
17595993125,4cyclictest9-21ksoftirqd/011:07:250
17595993125,4cyclictest9-21ksoftirqd/010:56:550
17595993125,4cyclictest9-21ksoftirqd/007:17:290
1759599310,4cyclictest9-21ksoftirqd/010:20:380
139391310,0ptp4l401ktimersoftd/312:10:183
17598993025,3cyclictest41-21ksoftirqd/312:01:403
17598993024,4cyclictest41-21ksoftirqd/311:28:113
17598993024,4cyclictest41-21ksoftirqd/311:20:093
17598993024,4cyclictest41-21ksoftirqd/307:36:013
17597993025,3cyclictest33-21ksoftirqd/212:38:192
17597993025,3cyclictest33-21ksoftirqd/211:22:252
17597993025,3cyclictest33-21ksoftirqd/211:14:012
17597993025,3cyclictest33-21ksoftirqd/210:04:462
17597993024,4cyclictest33-21ksoftirqd/210:43:132
17597993024,3cyclictest33-21ksoftirqd/207:15:002
1759699307,3cyclictest21916-21latency_hist09:35:001
17596993025,3cyclictest25-21ksoftirqd/111:36:161
17596993025,3cyclictest25-21ksoftirqd/108:51:281
17596993024,4cyclictest25-21ksoftirqd/111:01:141
17595993024,4cyclictest9-21ksoftirqd/007:55:190
17595993023,4cyclictest9-21ksoftirqd/008:28:120
139391300,0ptp4l401ktimersoftd/310:35:533
139391300,0ptp4l401ktimersoftd/308:51:023
17598992924,3cyclictest41-21ksoftirqd/310:50:083
17598992924,3cyclictest41-21ksoftirqd/310:15:173
17598992924,3cyclictest41-21ksoftirqd/310:15:173
17598992924,3cyclictest41-21ksoftirqd/308:47:143
17598992923,4cyclictest41-21ksoftirqd/311:38:013
17598992923,4cyclictest41-21ksoftirqd/310:02:123
1759799295,14cyclictest9614-21if_err_enp1s010:15:202
1759799295,14cyclictest9614-21if_err_enp1s010:15:202
17597992923,4cyclictest33-21ksoftirqd/212:17:162
17597992923,4cyclictest33-21ksoftirqd/210:09:482
17597992923,4cyclictest33-21ksoftirqd/209:41:012
17597992923,4cyclictest33-21ksoftirqd/209:41:002
17596992924,3cyclictest25-21ksoftirqd/111:45:261
17596992923,4cyclictest25-21ksoftirqd/111:59:261
17595992923,4cyclictest9-21ksoftirqd/012:31:140
17595992923,4cyclictest9-21ksoftirqd/012:31:140
17598992824,2cyclictest41-21ksoftirqd/308:45:003
17598992823,3cyclictest41-21ksoftirqd/310:13:063
1759799285,21cyclictest12192-21kworker/2:209:16:092
17597992824,3cyclictest33-21ksoftirqd/208:57:382
17597992822,4cyclictest33-21ksoftirqd/207:37:042
17597992813,12cyclictest207-21systemd-journal08:47:562
1759699286,3cyclictest22611-21cut09:35:161
1759799274,22cyclictest14791-21kworker/2:107:49:212
17597992722,3cyclictest33-21ksoftirqd/211:52:082
17597992722,3cyclictest33-21ksoftirqd/211:46:592
17597992722,3cyclictest33-21ksoftirqd/210:35:142
17597992722,3cyclictest33-21ksoftirqd/210:24:522
17597992722,3cyclictest33-21ksoftirqd/207:40:262
17595992722,3cyclictest9-21ksoftirqd/011:17:360
139391270,0ptp4l401ktimersoftd/309:49:403
139391270,0ptp4l401ktimersoftd/309:49:403
17598992621,3cyclictest41-21ksoftirqd/309:01:293
17597992621,3cyclictest33-21ksoftirqd/208:34:042
1759699266,3cyclictest20774-21seq10:38:421
1759699260,7cyclictest7014-21cat12:25:001
1759599267,3cyclictest9-21ksoftirqd/008:37:530
17595992621,3cyclictest9-21ksoftirqd/009:17:590
17595992620,4cyclictest9-21ksoftirqd/008:17:250
1759599255,6cyclictest9-21ksoftirqd/008:59:370
1759599252,7cyclictest9-21ksoftirqd/008:47:300
17595992519,4cyclictest9-21ksoftirqd/010:47:330
1759599251,4cyclictest0-21swapper/009:59:290
139391250,0ptp4l401ktimersoftd/308:57:523
17597992414,7cyclictest1300-21snmpd10:33:142
1759599248,8cyclictest9-21ksoftirqd/011:30:310
1759599245,2cyclictest9-21ksoftirqd/012:23:090
139391240,19ptp4l35892irq/126-enp1s0-09:13:123
139391240,0ptp4l401ktimersoftd/309:05:263
1759599233,2cyclictest9-21ksoftirqd/012:00:400
139391230,0ptp4l401ktimersoftd/308:35:163
139391230,0ptp4l401ktimersoftd/307:20:193
1759599213,2cyclictest9-21ksoftirqd/008:04:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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