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2026-08-17 - 01:08
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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 rackdslot2.osadl.org (updated Sun Aug 16, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591233166,23phc2sys0-21swapper/307:07:373
308792212168,32sleep20-21swapper/207:05:082
327592210176,22sleep10-21swapper/107:06:521
4932204170,22sleep00-21swapper/007:09:040
139291900,1ptp4l25786-21/usr/sbin/munin11:25:143
139291640,1ptp4l401ktimersoftd/308:04:093
139291630,0ptp4l401ktimersoftd/308:35:203
94732620,2sleep20-21swapper/209:40:262
139291570,1ptp4l401ktimersoftd/309:19:333
139291560,1ptp4l401ktimersoftd/308:20:013
321612530,2sleep10-21swapper/111:35:271
139291520,1ptp4l391rcuc/311:24:043
114582520,2sleep00-21swapper/008:40:140
114582520,2sleep00-21swapper/008:40:140
139291510,1ptp4l401ktimersoftd/309:00:413
139291500,1ptp4l391rcuc/308:51:323
87999490,47cyclictest22984-21kworker/2:111:25:252
260752490,2sleep30-21swapper/309:10:143
260752490,2sleep30-21swapper/309:10:143
139291480,1ptp4l401ktimersoftd/309:31:093
139291440,0ptp4l401ktimersoftd/308:05:043
87999430,3cyclictest29554-21kworker/2:207:17:052
139291430,0ptp4l401ktimersoftd/309:05:253
139291430,0ptp4l401ktimersoftd/307:50:323
878994235,4cyclictest24596-21cron10:14:591
23232420,3sleep2321ktimersoftd/209:25:252
139291420,0ptp4l401ktimersoftd/311:45:183
139291420,0ptp4l401ktimersoftd/311:15:163
139291410,0ptp4l401ktimersoftd/309:50:253
139291410,0ptp4l401ktimersoftd/308:49:253
880994035,4cyclictest41-21ksoftirqd/309:00:013
87999401,38cyclictest22984-21kworker/2:110:35:252
880993934,3cyclictest41-21ksoftirqd/310:35:143
880993934,3cyclictest312-21rs:main3
880993933,4cyclictest41-21ksoftirqd/307:25:213
880993933,4cyclictest41-21ksoftirqd/307:14:523
880993933,4cyclictest41-21ksoftirqd/307:14:523
879993934,3cyclictest33-21ksoftirqd/210:58:522
87999392,36cyclictest8780-21kworker/2:109:05:452
87999390,38cyclictest22984-21kworker/2:110:14:052
87899391,35cyclictest16124-21cron08:50:001
880993832,4cyclictest41-21ksoftirqd/312:36:553
880993832,4cyclictest41-21ksoftirqd/309:20:053
879993832,4cyclictest33-21ksoftirqd/211:33:192
879993831,4cyclictest33-21ksoftirqd/211:01:252
87999380,37cyclictest29554-21kworker/2:208:25:252
87899381,6cyclictest8542-21perl09:40:171
880993732,3cyclictest41-21ksoftirqd/310:10:183
880993732,3cyclictest41-21ksoftirqd/309:25:183
880993731,4cyclictest41-21ksoftirqd/311:51:573
880993731,4cyclictest41-21ksoftirqd/307:45:493
880993731,4cyclictest41-21ksoftirqd/307:35:383
880993731,4cyclictest41-21ksoftirqd/307:32:453
879993732,3cyclictest33-21ksoftirqd/209:47:202
879993731,4cyclictest33-21ksoftirqd/211:49:402
879993731,4cyclictest33-21ksoftirqd/207:47:292
879993731,4cyclictest33-21ksoftirqd/207:23:142
87899379,26cyclictest0-21swapper/110:46:041
878993732,3cyclictest14965-21cron07:40:001
877993731,4cyclictest9-21ksoftirqd/010:34:160
877993731,4cyclictest9-21ksoftirqd/008:54:380
877993731,4cyclictest9-21ksoftirqd/007:10:080
877993731,4cyclictest9-21ksoftirqd/007:10:080
877993730,4cyclictest9-21ksoftirqd/012:19:550
880993631,3cyclictest41-21ksoftirqd/311:55:153
880993631,3cyclictest41-21ksoftirqd/311:05:443
880993630,4cyclictest41-21ksoftirqd/310:18:383
880993630,4cyclictest41-21ksoftirqd/310:18:383
880993630,4cyclictest41-21ksoftirqd/307:58:523
880993630,3cyclictest41-21ksoftirqd/308:34:593
879993631,3cyclictest33-21ksoftirqd/210:52:592
879993631,3cyclictest33-21ksoftirqd/210:06:132
879993630,4cyclictest33-21ksoftirqd/211:22:202
879993630,4cyclictest33-21ksoftirqd/210:47:372
879993630,4cyclictest33-21ksoftirqd/210:33:212
879993630,4cyclictest33-21ksoftirqd/208:43:092
879993630,4cyclictest33-21ksoftirqd/208:43:092
879993630,3cyclictest33-21ksoftirqd/207:52:122
879993618,17cyclictest31346-21kworker/2:011:43:062
878993631,3cyclictest312-21rs:main1
878993631,3cyclictest25-21ksoftirqd/108:12:191
878993631,3cyclictest25-21ksoftirqd/107:23:331
878993630,4cyclictest25-21ksoftirqd/111:10:071
877993630,4cyclictest9-21ksoftirqd/012:04:450
877993630,4cyclictest9-21ksoftirqd/007:48:030
877993629,4cyclictest9-21ksoftirqd/010:40:370
877993629,4cyclictest9-21ksoftirqd/010:35:040
877993629,4cyclictest9-21ksoftirqd/007:16:300
880993531,3cyclictest41-21ksoftirqd/309:45:203
880993530,3cyclictest41-21ksoftirqd/312:27:273
880993530,3cyclictest41-21ksoftirqd/311:31:513
880993530,3cyclictest41-21ksoftirqd/310:49:093
880993530,3cyclictest41-21ksoftirqd/310:25:013
880993530,3cyclictest41-21ksoftirqd/310:08:403
880993529,4cyclictest41-21ksoftirqd/310:34:353
880993529,4cyclictest41-21ksoftirqd/310:03:303
880993529,4cyclictest41-21ksoftirqd/307:41:123
880993529,4cyclictest41-21ksoftirqd/307:19:213
879993530,3cyclictest33-21ksoftirqd/212:20:262
879993530,3cyclictest33-21ksoftirqd/211:51:092
879993529,4cyclictest33-21ksoftirqd/212:14:432
879993529,4cyclictest33-21ksoftirqd/209:01:422
879993529,4cyclictest33-21ksoftirqd/208:53:042
878993529,4cyclictest25-21ksoftirqd/111:27:401
878993529,4cyclictest25-21ksoftirqd/111:18:581
878993529,4cyclictest25-21ksoftirqd/110:56:271
878993529,4cyclictest25-21ksoftirqd/109:58:381
878993529,4cyclictest25-21ksoftirqd/109:01:401
878993512,22cyclictest26762-21kworker/1:110:02:141
877993529,4cyclictest9-21ksoftirqd/007:53:280
877993529,4cyclictest9-21ksoftirqd/007:43:300
877993529,4cyclictest9-21ksoftirqd/007:32:100
877993529,3cyclictest9-21ksoftirqd/011:17:000
877993528,4cyclictest9-21ksoftirqd/009:00:010
880993430,3cyclictest41-21ksoftirqd/311:00:213
880993429,3cyclictest41-21ksoftirqd/310:59:103
880993429,3cyclictest41-21ksoftirqd/309:40:443
880993428,4cyclictest41-21ksoftirqd/312:15:073
880993428,4cyclictest41-21ksoftirqd/311:43:143
880993428,4cyclictest41-21ksoftirqd/310:44:453
879993429,3cyclictest33-21ksoftirqd/211:38:042
879993428,4cyclictest33-21ksoftirqd/212:38:412
879993428,4cyclictest33-21ksoftirqd/209:39:252
879993428,4cyclictest33-21ksoftirqd/207:41:072
878993430,2cyclictest25-21ksoftirqd/112:29:231
878993429,3cyclictest25-21ksoftirqd/110:44:591
878993429,3cyclictest25-21ksoftirqd/108:17:411
878993429,3cyclictest25-21ksoftirqd/107:40:021
878993429,3cyclictest25-21ksoftirqd/107:18:241
878993428,4cyclictest25-21ksoftirqd/111:07:341
878993428,4cyclictest25-21ksoftirqd/108:52:311
877993429,3cyclictest9-21ksoftirqd/011:10:110
877993428,4cyclictest9-21ksoftirqd/010:03:020
877993428,3cyclictest9-21ksoftirqd/009:44:260
877993427,4cyclictest9-21ksoftirqd/010:25:120
880993328,3cyclictest41-21ksoftirqd/308:22:333
880993327,4cyclictest41-21ksoftirqd/312:12:593
880993327,4cyclictest41-21ksoftirqd/308:29:543
879993328,3cyclictest33-21ksoftirqd/210:21:432
879993328,3cyclictest33-21ksoftirqd/209:20:252
879993328,3cyclictest33-21ksoftirqd/207:39:042
879993327,4cyclictest33-21ksoftirqd/212:01:462
879993327,4cyclictest33-21ksoftirqd/209:30:472
879993327,4cyclictest33-21ksoftirqd/208:24:112
879993327,4cyclictest33-21ksoftirqd/208:08:032
879993327,4cyclictest33-21ksoftirqd/208:02:532
879993327,4cyclictest33-21ksoftirqd/207:58:082
879993320,11cyclictest33-21ksoftirqd/210:15:192
879993320,11cyclictest33-21ksoftirqd/210:15:192
87999330,31cyclictest0-21swapper/207:15:002
87999330,31cyclictest0-21swapper/207:15:002
878993328,3cyclictest25-21ksoftirqd/112:30:391
878993328,3cyclictest25-21ksoftirqd/111:47:481
878993328,3cyclictest25-21ksoftirqd/111:22:231
878993328,3cyclictest25-21ksoftirqd/110:30:111
878993328,3cyclictest25-21ksoftirqd/109:30:461
878993327,4cyclictest25-21ksoftirqd/112:12:081
878993327,4cyclictest25-21ksoftirqd/108:01:121
87899331,29cyclictest12999-21df12:05:161
878993310,21cyclictest26762-21kworker/1:110:23:441
877993328,3cyclictest9-21ksoftirqd/010:15:140
877993328,3cyclictest9-21ksoftirqd/010:15:140
877993328,3cyclictest9-21ksoftirqd/009:28:080
877993327,4cyclictest9-21ksoftirqd/011:03:510
877993327,4cyclictest9-21ksoftirqd/010:59:260
877993327,4cyclictest9-21ksoftirqd/009:31:490
877993327,4cyclictest9-21ksoftirqd/009:22:260
877993327,4cyclictest9-21ksoftirqd/007:29:050
877993327,3cyclictest9-21ksoftirqd/010:05:370
877993327,3cyclictest9-21ksoftirqd/008:29:420
877993326,4cyclictest9-21ksoftirqd/012:20:030
877993326,4cyclictest9-21ksoftirqd/011:33:050
877993326,4cyclictest9-21ksoftirqd/011:05:110
877993326,4cyclictest9-21ksoftirqd/008:34:160
2114023326,2sleep341-21ksoftirqd/312:20:223
880993227,3cyclictest41-21ksoftirqd/312:30:093
880993227,3cyclictest41-21ksoftirqd/312:05:323
879993227,3cyclictest33-21ksoftirqd/211:58:572
879993227,3cyclictest33-21ksoftirqd/211:19:082
879993227,3cyclictest33-21ksoftirqd/211:14:102
879993227,3cyclictest33-21ksoftirqd/210:44:082
879993227,3cyclictest33-21ksoftirqd/210:29:552
879993226,4cyclictest33-21ksoftirqd/212:26:062
878993227,3cyclictest25-21ksoftirqd/112:00:411
878993226,4cyclictest25-21ksoftirqd/107:51:371
878993225,5cyclictest25-21ksoftirqd/109:25:011
878993225,4cyclictest25-21ksoftirqd/107:45:141
878993212,19cyclictest15732-21kworker/1:211:32:251
877993226,4cyclictest9-21ksoftirqd/012:07:580
877993226,4cyclictest9-21ksoftirqd/009:47:140
877993226,4cyclictest9-21ksoftirqd/009:01:320
877993226,4cyclictest9-21ksoftirqd/008:24:300
877993226,3cyclictest9-21ksoftirqd/011:25:580
139291320,2ptp4l0-21swapper/310:27:343
880993127,3cyclictest41-21ksoftirqd/307:20:193
880993126,3cyclictest41-21ksoftirqd/310:51:243
880993126,3cyclictest41-21ksoftirqd/309:37:453
880993125,4cyclictest41-21ksoftirqd/311:12:023
87999319,3cyclictest19316-21expr10:00:272
879993126,3cyclictest33-21ksoftirqd/212:33:272
879993126,3cyclictest33-21ksoftirqd/212:18:382
879993125,4cyclictest33-21ksoftirqd/209:16:342
879993125,4cyclictest33-21ksoftirqd/208:47:292
879993125,4cyclictest33-21ksoftirqd/208:11:122
878993126,3cyclictest25-21ksoftirqd/110:05:131
878993126,3cyclictest25-21ksoftirqd/108:41:551
878993126,3cyclictest25-21ksoftirqd/108:41:551
878993125,4cyclictest25-21ksoftirqd/108:58:281
878993125,4cyclictest25-21ksoftirqd/108:36:411
877993126,3cyclictest9-21ksoftirqd/012:37:230
877993126,3cyclictest9-21ksoftirqd/009:51:030
877993126,3cyclictest9-21ksoftirqd/008:17:400
877993126,3cyclictest9-21ksoftirqd/008:13:550
877993126,3cyclictest9-21ksoftirqd/008:00:390
877993126,3cyclictest9-21ksoftirqd/007:37:500
877993125,4cyclictest9-21ksoftirqd/012:14:330
877993125,4cyclictest9-21ksoftirqd/011:42:200
877993125,4cyclictest9-21ksoftirqd/009:39:150
877993125,3cyclictest9-21ksoftirqd/009:13:200
877993125,3cyclictest9-21ksoftirqd/009:13:200
877993124,4cyclictest9-21ksoftirqd/011:53:150
877993124,4cyclictest9-21ksoftirqd/011:35:050
880993025,3cyclictest41-21ksoftirqd/311:40:013
880993024,3cyclictest41-21ksoftirqd/312:00:223
879993025,3cyclictest33-21ksoftirqd/208:33:002
879993024,4cyclictest33-21ksoftirqd/209:52:242
879993012,16cyclictest16735-21fschecks_count11:05:162
87999300,28cyclictest5325-21kworker/2:009:58:042
87899309,19cyclictest26762-21kworker/1:109:39:131
87899308,20cyclictest26762-21kworker/1:111:02:541
878993025,3cyclictest25-21ksoftirqd/110:35:141
878993025,3cyclictest25-21ksoftirqd/109:50:291
878993024,4cyclictest25-21ksoftirqd/110:26:541
878993024,3cyclictest25-21ksoftirqd/112:37:361
877993025,3cyclictest9-21ksoftirqd/009:56:560
877993025,3cyclictest9-21ksoftirqd/009:15:110
877993024,4cyclictest9-21ksoftirqd/009:06:300
139291300,0ptp4l401ktimersoftd/309:58:273
879992923,4cyclictest33-21ksoftirqd/208:59:022
879992923,4cyclictest33-21ksoftirqd/207:28:232
87999291,11cyclictest28043-21latency_hist09:15:012
87999291,11cyclictest28043-21latency_hist09:15:012
878992924,3cyclictest25-21ksoftirqd/109:25:271
878992923,4cyclictest25-21ksoftirqd/112:17:181
877992924,3cyclictest9-21ksoftirqd/008:05:110
877992924,3cyclictest9-21ksoftirqd/007:57:060
877992923,4cyclictest9-21ksoftirqd/010:51:490
877992923,4cyclictest9-21ksoftirqd/010:46:150
87999287,3cyclictest14342-21sed12:05:282
879992823,3cyclictest33-21ksoftirqd/208:19:112
879992823,3cyclictest33-21ksoftirqd/207:33:182
878992823,3cyclictest25-21ksoftirqd/111:58:181
878992823,3cyclictest25-21ksoftirqd/111:40:091
878992823,3cyclictest25-21ksoftirqd/110:51:301
878992823,3cyclictest25-21ksoftirqd/109:08:451
878992822,4cyclictest25-21ksoftirqd/108:31:001
878992822,4cyclictest25-21ksoftirqd/107:56:061
87899281,26cyclictest26762-21kworker/1:110:16:241
87899281,26cyclictest26762-21kworker/1:110:16:231
877992822,4cyclictest9-21ksoftirqd/012:30:380
877992822,4cyclictest9-21ksoftirqd/007:21:390
877992822,4cyclictest217-21systemd-journal12:30:010
877992814,5cyclictest9-21ksoftirqd/010:14:100
139291280,0ptp4l401ktimersoftd/308:44:423
139291280,0ptp4l401ktimersoftd/308:44:423
878992723,3cyclictest25-21ksoftirqd/107:33:271
878992722,3cyclictest25-21ksoftirqd/109:18:421
878992722,3cyclictest25-21ksoftirqd/108:20:161
878992722,3cyclictest25-21ksoftirqd/108:08:131
878992721,4cyclictest25-21ksoftirqd/112:20:511
877992621,3cyclictest9-21ksoftirqd/011:55:160
877992621,3cyclictest9-21ksoftirqd/011:48:050
877992620,4cyclictest9-21ksoftirqd/011:20:320
877992620,4cyclictest9-21ksoftirqd/008:37:490
879992521,3cyclictest33-21ksoftirqd/208:35:212
878992512,12cyclictest26762-21kworker/1:109:47:041
877992519,4cyclictest9-21ksoftirqd/008:48:280
878992318,3cyclictest25-21ksoftirqd/107:29:561
878992317,4cyclictest25-21ksoftirqd/107:10:571
878992317,4cyclictest25-21ksoftirqd/107:10:571
87899230,10cyclictest66342cat08:30:001
878992216,4cyclictest27533-21tail09:10:271
878992216,4cyclictest27533-21tail09:10:271
877992217,3cyclictest9-21ksoftirqd/010:22:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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