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2026-09-28 - 17:11
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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 rackdslot3.osadl.org (updated Mon Sep 28, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206172,22phc2sys0-21swapper/307:05:523
293242205172,22sleep20-21swapper/207:07:542
291732203169,22sleep00-21swapper/007:05:550
291692203170,22sleep10-21swapper/107:05:521
3121321530,4sleep22979099cyclictest09:25:212
139391690,1ptp4l4963-21apt-get09:40:123
139391640,0ptp4l401ktimersoftd/311:10:203
50982590,1sleep20-21swapper/207:25:142
29790995627,4cyclictest33-21ksoftirqd/208:54:592
29790995521,5cyclictest33-21ksoftirqd/212:15:262
29790995424,4cyclictest33-21ksoftirqd/209:10:242
139391540,1ptp4l401ktimersoftd/307:19:553
139391540,1ptp4l401ktimersoftd/307:19:553
29790995322,5cyclictest33-21ksoftirqd/208:55:132
29790995223,4cyclictest33-21ksoftirqd/211:45:182
29790995221,5cyclictest33-21ksoftirqd/207:30:182
29790995220,5cyclictest33-21ksoftirqd/211:25:252
29790995219,5cyclictest33-21ksoftirqd/211:09:592
29790995218,11cyclictest33-21ksoftirqd/207:15:232
29790995218,11cyclictest33-21ksoftirqd/207:15:232
139391520,0ptp4l401ktimersoftd/310:17:183
29790995125,6cyclictest33-21ksoftirqd/209:05:212
29790995124,7cyclictest33-21ksoftirqd/212:00:142
29790995121,5cyclictest33-21ksoftirqd/212:05:142
29790995121,3cyclictest33-21ksoftirqd/210:05:252
323702500,5sleep0111rcuc/009:30:010
29790995024,6cyclictest33-21ksoftirqd/209:40:232
29790995023,3cyclictest33-21ksoftirqd/207:10:282
29790995021,3cyclictest33-21ksoftirqd/210:35:002
29790995020,4cyclictest33-21ksoftirqd/212:35:172
29790995018,6cyclictest33-21ksoftirqd/208:20:252
29790995018,5cyclictest33-21ksoftirqd/210:40:202
29790995018,5cyclictest33-21ksoftirqd/210:40:202
29790995018,4cyclictest33-21ksoftirqd/210:00:172
29790995017,5cyclictest33-21ksoftirqd/209:45:152
29790995014,6cyclictest33-21ksoftirqd/211:00:242
29790994923,4cyclictest33-21ksoftirqd/207:40:012
29790994920,3cyclictest33-21ksoftirqd/211:55:142
29790994919,5cyclictest33-21ksoftirqd/211:30:232
29790994919,5cyclictest33-21ksoftirqd/209:15:182
29790994918,6cyclictest33-21ksoftirqd/208:30:012
29790994917,6cyclictest33-21ksoftirqd/212:20:272
29790994916,4cyclictest33-21ksoftirqd/211:20:132
29790994915,6cyclictest33-21ksoftirqd/212:25:222
29790994915,10cyclictest33-21ksoftirqd/210:10:232
29790994914,5cyclictest33-21ksoftirqd/209:00:262
29790994912,5cyclictest33-21ksoftirqd/207:45:232
139391490,1ptp4l401ktimersoftd/307:12:003
139391490,0ptp4l401ktimersoftd/310:27:023
29790994819,4cyclictest33-21ksoftirqd/212:30:142
29790994819,4cyclictest33-21ksoftirqd/212:30:132
29790994819,4cyclictest33-21ksoftirqd/209:25:002
29790994816,4cyclictest33-21ksoftirqd/210:45:152
29790994815,5cyclictest33-21ksoftirqd/207:55:142
29790994814,4cyclictest33-21ksoftirqd/208:10:192
29790994730,3cyclictest33-21ksoftirqd/211:38:192
29790994730,3cyclictest33-21ksoftirqd/211:38:192
29790994718,4cyclictest33-21ksoftirqd/209:50:162
29790994718,4cyclictest33-21ksoftirqd/209:50:152
29790994718,3cyclictest33-21ksoftirqd/211:15:212
29790994618,4cyclictest33-21ksoftirqd/211:10:152
29790994618,10cyclictest33-21ksoftirqd/209:40:002
29790994616,4cyclictest33-21ksoftirqd/210:15:282
29790994615,4cyclictest33-21ksoftirqd/210:55:002
29790994612,5cyclictest33-21ksoftirqd/212:10:252
29790994611,7cyclictest33-21ksoftirqd/207:35:142
29790994415,4cyclictest33-21ksoftirqd/208:30:122
29790994414,5cyclictest33-21ksoftirqd/208:15:192
29790994413,4cyclictest33-21ksoftirqd/209:55:252
29790994412,5cyclictest33-21ksoftirqd/208:45:122
29790994412,4cyclictest33-21ksoftirqd/210:55:142
29790994411,7cyclictest33-21ksoftirqd/208:09:592
29790994411,4cyclictest33-21ksoftirqd/208:00:252
29790994410,3cyclictest33-21ksoftirqd/211:50:172
2949724433,5sleep00-21swapper/007:10:010
29790994332,3cyclictest33-21ksoftirqd/210:25:112
29790994310,4cyclictest33-21ksoftirqd/211:40:162
139391420,0ptp4l401ktimersoftd/310:00:193
29791994135,3cyclictest207-21systemd-journal07:54:563
2979099414,3cyclictest121rcu_preempt10:35:262
2979099412,7cyclictest33-21ksoftirqd/208:40:152
139391410,0ptp4l401ktimersoftd/312:24:203
29790994035,2cyclictest33-21ksoftirqd/208:40:012
29789994035,3cyclictest25-21ksoftirqd/107:25:001
29790993933,3cyclictest33-21ksoftirqd/209:35:012
29790993929,3cyclictest33-21ksoftirqd/207:50:202
2979099391,3cyclictest33-21ksoftirqd/210:20:202
29790993912,7cyclictest33-21ksoftirqd/207:20:172
29789993833,3cyclictest25-21ksoftirqd/107:40:001
29788993833,3cyclictest9-21ksoftirqd/008:45:010
29788993833,3cyclictest9-21ksoftirqd/007:30:010
139391380,0ptp4l401ktimersoftd/312:00:303
29791993732,3cyclictest41-21ksoftirqd/309:22:523
29791993731,4cyclictest41-21ksoftirqd/309:48:453
29791993730,4cyclictest30920-21cron08:19:593
29789993733,2cyclictest25-21ksoftirqd/110:00:001
29789993731,4cyclictest25-21ksoftirqd/111:34:411
29789993731,4cyclictest25-21ksoftirqd/108:41:191
29789993731,4cyclictest25-21ksoftirqd/108:22:411
139391370,0ptp4l401ktimersoftd/311:15:243
29789993631,3cyclictest25-21ksoftirqd/111:45:101
29789993630,4cyclictest25-21ksoftirqd/111:24:021
29789993630,4cyclictest25-21ksoftirqd/107:51:291
29789993629,5cyclictest25-21ksoftirqd/108:26:391
29789993629,4cyclictest25-21ksoftirqd/108:14:521
29788993631,3cyclictest14448-21cron10:00:010
29788993630,4cyclictest5617-21irqrtprio09:40:190
139391360,0ptp4l401ktimersoftd/310:05:033
139391360,0ptp4l401ktimersoftd/310:00:013
29791993529,4cyclictest41-21ksoftirqd/312:05:583
29791993529,4cyclictest41-21ksoftirqd/309:27:103
29791993529,4cyclictest41-21ksoftirqd/308:58:103
29791993528,4cyclictest41-21ksoftirqd/312:29:483
29789993530,3cyclictest25-21ksoftirqd/112:06:391
29789993530,3cyclictest25-21ksoftirqd/111:35:111
29789993530,3cyclictest25-21ksoftirqd/111:35:111
29789993530,3cyclictest25-21ksoftirqd/111:25:101
29789993529,4cyclictest25-21ksoftirqd/111:14:571
29789993529,4cyclictest25-21ksoftirqd/110:49:201
29789993529,4cyclictest25-21ksoftirqd/110:32:321
29789993529,4cyclictest25-21ksoftirqd/110:07:051
29789993529,4cyclictest25-21ksoftirqd/109:05:461
29789993529,4cyclictest25-21ksoftirqd/108:57:561
29789993529,4cyclictest25-21ksoftirqd/108:50:381
29789993529,4cyclictest25-21ksoftirqd/107:17:551
29789993529,4cyclictest25-21ksoftirqd/107:17:551
29788993530,3cyclictest9-21ksoftirqd/010:55:110
29788993530,3cyclictest9-21ksoftirqd/008:35:000
29788993528,4cyclictest9-21ksoftirqd/008:46:320
29791993428,4cyclictest41-21ksoftirqd/311:57:383
29791993428,4cyclictest41-21ksoftirqd/308:42:013
29791993427,4cyclictest41-21ksoftirqd/308:45:103
29789993429,3cyclictest25-21ksoftirqd/108:20:001
29789993428,4cyclictest25-21ksoftirqd/110:28:071
29789993428,4cyclictest25-21ksoftirqd/110:02:391
29789993428,4cyclictest25-21ksoftirqd/107:12:321
29789993427,5cyclictest25-21ksoftirqd/112:36:291
29788993431,2cyclictest9-21ksoftirqd/012:35:000
29788993428,4cyclictest9-21ksoftirqd/012:15:440
29788993427,4cyclictest9-21ksoftirqd/010:41:580
29788993427,4cyclictest9-21ksoftirqd/010:41:580
29791993328,3cyclictest41-21ksoftirqd/307:45:093
29791993327,4cyclictest41-21ksoftirqd/311:48:323
29791993327,4cyclictest41-21ksoftirqd/311:20:523
29791993326,5cyclictest41-21ksoftirqd/310:47:273
29791993326,4cyclictest41-21ksoftirqd/310:45:003
29791993326,4cyclictest41-21ksoftirqd/310:45:003
29789993328,3cyclictest25-21ksoftirqd/107:48:551
29789993327,4cyclictest25-21ksoftirqd/112:26:091
29789993327,4cyclictest25-21ksoftirqd/111:56:491
29789993327,4cyclictest25-21ksoftirqd/110:57:401
29789993327,4cyclictest25-21ksoftirqd/108:45:441
29789993326,4cyclictest25-21ksoftirqd/109:40:191
29788993328,3cyclictest9-21ksoftirqd/011:14:590
29788993328,3cyclictest9-21ksoftirqd/008:20:200
29788993328,3cyclictest9-21ksoftirqd/007:51:000
29788993327,4cyclictest9-21ksoftirqd/012:32:340
29788993327,4cyclictest9-21ksoftirqd/012:32:330
29788993327,4cyclictest9-21ksoftirqd/011:05:360
29788993327,4cyclictest9-21ksoftirqd/010:01:250
29788993327,4cyclictest9-21ksoftirqd/009:20:530
29788993327,4cyclictest9-21ksoftirqd/008:57:540
139391330,0ptp4l401ktimersoftd/310:34:083
29791993229,1cyclictest139391ptp4l07:24:313
29791993227,3cyclictest41-21ksoftirqd/309:20:003
29791993227,3cyclictest41-21ksoftirqd/307:42:413
29791993226,4cyclictest41-21ksoftirqd/312:13:483
29791993226,4cyclictest41-21ksoftirqd/310:12:393
29791993226,4cyclictest41-21ksoftirqd/308:01:223
29791993226,3cyclictest41-21ksoftirqd/311:35:113
29791993226,3cyclictest41-21ksoftirqd/311:35:113
29789993227,3cyclictest25-21ksoftirqd/110:21:521
29789993227,3cyclictest25-21ksoftirqd/110:19:031
29789993226,4cyclictest25-21ksoftirqd/111:42:041
29789993226,4cyclictest25-21ksoftirqd/109:29:021
29789993226,4cyclictest25-21ksoftirqd/109:03:581
29789993226,4cyclictest25-21ksoftirqd/108:33:001
29789993226,4cyclictest25-21ksoftirqd/107:31:431
29789993226,4cyclictest19387-21cron12:25:001
29788993227,3cyclictest9-21ksoftirqd/012:28:280
29788993227,3cyclictest9-21ksoftirqd/009:53:120
29788993227,3cyclictest9-21ksoftirqd/009:53:110
29788993227,3cyclictest9-21ksoftirqd/008:28:390
29788993227,3cyclictest9-21ksoftirqd/007:22:100
29788993226,4cyclictest9-21ksoftirqd/012:21:380
29788993226,4cyclictest9-21ksoftirqd/011:56:470
29788993226,4cyclictest9-21ksoftirqd/010:29:010
29788993226,4cyclictest9-21ksoftirqd/009:37:430
29788993226,4cyclictest9-21ksoftirqd/009:08:060
29788993226,4cyclictest9-21ksoftirqd/008:12:250
29788993226,4cyclictest9-21ksoftirqd/007:43:220
29788993226,4cyclictest9-21ksoftirqd/007:30:380
139391320,0ptp4l401ktimersoftd/309:07:123
139391320,0ptp4l401ktimersoftd/309:02:043
139391320,0ptp4l401ktimersoftd/308:36:123
29791993125,4cyclictest41-21ksoftirqd/310:53:363
29791993125,4cyclictest41-21ksoftirqd/310:35:583
2979199310,29cyclictest26416-21sshd12:36:213
29789993127,3cyclictest25-21ksoftirqd/112:35:001
29789993127,3cyclictest25-21ksoftirqd/112:35:001
29789993126,3cyclictest25-21ksoftirqd/111:08:421
29789993125,4cyclictest25-21ksoftirqd/108:00:441
29788993126,3cyclictest9-21ksoftirqd/012:06:030
29788993126,3cyclictest9-21ksoftirqd/012:04:540
29788993126,3cyclictest9-21ksoftirqd/011:50:050
29788993126,3cyclictest9-21ksoftirqd/011:25:380
29788993126,3cyclictest9-21ksoftirqd/011:15:100
29788993125,4cyclictest9-21ksoftirqd/011:44:400
29788993125,4cyclictest9-21ksoftirqd/011:20:480
29788993125,3cyclictest9-21ksoftirqd/009:15:180
139391310,8ptp4l401ktimersoftd/309:13:123
139391310,8ptp4l401ktimersoftd/307:26:333
139391310,0ptp4l401ktimersoftd/311:31:433
139391310,0ptp4l401ktimersoftd/309:39:433
139391310,0ptp4l401ktimersoftd/308:22:223
29791993025,3cyclictest41-21ksoftirqd/311:06:193
29789993025,3cyclictest25-21ksoftirqd/109:35:361
29789993025,3cyclictest25-21ksoftirqd/109:30:251
29789993025,3cyclictest25-21ksoftirqd/108:10:001
29788993025,3cyclictest9-21ksoftirqd/011:50:000
29788993025,3cyclictest9-21ksoftirqd/008:50:090
29788993025,3cyclictest9-21ksoftirqd/008:04:480
29788993024,4cyclictest9-21ksoftirqd/011:39:310
29788993024,4cyclictest9-21ksoftirqd/011:39:310
29788993024,4cyclictest9-21ksoftirqd/010:35:510
29788993024,4cyclictest9-21ksoftirqd/010:18:430
29788993024,4cyclictest9-21ksoftirqd/009:46:130
29788993024,4cyclictest9-21ksoftirqd/008:07:530
139391300,0ptp4l401ktimersoftd/311:02:163
139391300,0ptp4l401ktimersoftd/310:24:173
139391300,0ptp4l401ktimersoftd/309:31:583
139391300,0ptp4l401ktimersoftd/307:36:233
29791992924,3cyclictest41-21ksoftirqd/311:50:343
29791992924,3cyclictest41-21ksoftirqd/308:50:553
29791992923,4cyclictest41-21ksoftirqd/311:29:583
29791992923,4cyclictest41-21ksoftirqd/310:56:053
29789992924,3cyclictest25-21ksoftirqd/112:18:431
29789992923,4cyclictest25-21ksoftirqd/112:11:561
29789992922,5cyclictest25-21ksoftirqd/109:15:001
29788992925,3cyclictest9-21ksoftirqd/011:00:110
29788992924,3cyclictest9-21ksoftirqd/010:13:250
29788992924,3cyclictest9-21ksoftirqd/009:11:360
29788992924,3cyclictest9-21ksoftirqd/007:56:330
29788992924,3cyclictest9-21ksoftirqd/007:38:320
29788992923,4cyclictest9-21ksoftirqd/008:37:160
29788992923,4cyclictest9-21ksoftirqd/007:15:180
29788992923,4cyclictest9-21ksoftirqd/007:15:180
29791992823,3cyclictest41-21ksoftirqd/312:33:463
29791992823,3cyclictest41-21ksoftirqd/312:33:453
29791992822,4cyclictest41-21ksoftirqd/308:29:263
29791992822,4cyclictest28545-21cron08:15:003
29789992824,3cyclictest25-21ksoftirqd/109:50:121
29789992824,3cyclictest25-21ksoftirqd/109:50:111
29789992823,3cyclictest25-21ksoftirqd/110:40:131
29789992823,3cyclictest25-21ksoftirqd/110:40:131
29789992823,3cyclictest25-21ksoftirqd/109:21:111
29789992822,4cyclictest25-21ksoftirqd/110:35:091
29789992822,4cyclictest25-21ksoftirqd/108:36:381
29788992823,3cyclictest9-21ksoftirqd/011:30:130
29788992823,3cyclictest9-21ksoftirqd/010:06:470
29788992822,4cyclictest9-21ksoftirqd/008:15:030
139391280,0ptp4l401ktimersoftd/307:34:593
29791992723,3cyclictest41-21ksoftirqd/308:07:233
29791992722,3cyclictest41-21ksoftirqd/311:40:223
29791992721,4cyclictest41-21ksoftirqd/307:58:123
29789992722,3cyclictest25-21ksoftirqd/111:50:221
29789992722,3cyclictest25-21ksoftirqd/107:25:431
29789992721,4cyclictest25-21ksoftirqd/112:04:581
29789992721,4cyclictest25-21ksoftirqd/109:45:421
29789992721,4cyclictest25-21ksoftirqd/107:56:131
29789992720,4cyclictest25-21ksoftirqd/111:03:371
29788992722,3cyclictest9-21ksoftirqd/010:50:470
139391270,1ptp4l0-21swapper/309:50:563
139391270,1ptp4l0-21swapper/309:50:563
29791992621,3cyclictest41-21ksoftirqd/308:30:083
29789992621,3cyclictest25-21ksoftirqd/111:17:081
29789992621,3cyclictest25-21ksoftirqd/110:53:571
29789992621,3cyclictest25-21ksoftirqd/109:15:081
29788992621,3cyclictest9-21ksoftirqd/009:33:260
29788992620,4cyclictest9-21ksoftirqd/007:49:380
29791992520,3cyclictest41-21ksoftirqd/312:19:193
29788992521,2cyclictest9-21ksoftirqd/012:15:000
29789992318,3cyclictest25-21ksoftirqd/107:44:261
29788992318,3cyclictest9-21ksoftirqd/010:49:320
29788992317,4cyclictest9-21ksoftirqd/010:22:240
29789992217,3cyclictest25-21ksoftirqd/110:10:171
29788992117,2cyclictest9-21ksoftirqd/009:00:220
29788992015,3cyclictest29807-21iostat10:30:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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