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2026-08-28 - 04:35
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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 376 highest latencies:
System rackdslot4.osadl.org (updated Fri Aug 28, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591231167,52phc2sys0-21swapper/319:08:533
229022202169,21sleep20-21swapper/219:07:142
230962201167,23sleep10-21swapper/119:09:461
229972201166,23sleep00-21swapper/019:08:280
1108421740,6sleep12340799cyclictest00:10:141
138491680,1ptp4l26910-21ls22:30:213
195892640,7sleep12340799cyclictest23:20:231
137272640,8sleep32340999cyclictest23:10:143
30842610,7sleep02340699cyclictest22:50:010
138491590,1ptp4l401ktimersoftd/322:24:433
138491550,1ptp4l401ktimersoftd/323:24:323
21452540,3sleep22144-21phc2sys20:35:232
138491530,1ptp4l401ktimersoftd/322:25:153
13262530,1sleep20-21swapper/222:45:172
138491510,1ptp4l391rcuc/321:39:063
224872490,1sleep30-21swapper/300:31:103
224872490,1sleep30-21swapper/300:31:103
138491460,0ptp4l401ktimersoftd/323:40:073
138491460,0ptp4l401ktimersoftd/319:20:193
23407994438,3cyclictest15437-21cron21:05:001
138491430,35ptp4l0-21swapper/319:10:003
138491430,1ptp4l401ktimersoftd/323:55:083
138491430,0ptp4l401ktimersoftd/322:10:003
138491420,0ptp4l401ktimersoftd/321:55:233
138491410,0ptp4l401ktimersoftd/323:00:133
138491410,0ptp4l401ktimersoftd/321:31:003
138491410,0ptp4l401ktimersoftd/321:21:423
138491410,0ptp4l401ktimersoftd/300:25:173
23408994035,3cyclictest33-21ksoftirqd/221:00:002
23407994035,3cyclictest25-21ksoftirqd/123:20:001
138491400,1ptp4l401ktimersoftd/320:44:293
23407993934,3cyclictest25-21ksoftirqd/122:50:011
23407993926,10cyclictest25-21ksoftirqd/121:20:191
138491390,0ptp4l401ktimersoftd/322:35:273
23409993731,4cyclictest41-21ksoftirqd/300:18:543
23408993731,4cyclictest33-21ksoftirqd/220:05:552
23408993731,4cyclictest33-21ksoftirqd/200:24:192
23407993731,3cyclictest25-21ksoftirqd/121:50:001
23407993731,3cyclictest25-21ksoftirqd/100:15:131
138491370,0ptp4l401ktimersoftd/322:40:133
23409993630,4cyclictest41-21ksoftirqd/321:03:253
23409993630,4cyclictest41-21ksoftirqd/319:39:043
23409993629,4cyclictest41-21ksoftirqd/300:40:003
23408993630,4cyclictest33-21ksoftirqd/200:04:212
23408993629,5cyclictest33-21ksoftirqd/222:20:542
2340899360,35cyclictest0-21swapper/200:26:042
23407993630,4cyclictest25-21ksoftirqd/121:29:291
23407993630,4cyclictest25-21ksoftirqd/119:40:111
23407993630,3cyclictest25-21ksoftirqd/122:40:001
23407993629,4cyclictest25-21ksoftirqd/100:20:121
23406993631,3cyclictest9-21ksoftirqd/022:20:130
23409993529,4cyclictest41-21ksoftirqd/321:07:143
23409993529,4cyclictest41-21ksoftirqd/320:50:453
23408993530,3cyclictest33-21ksoftirqd/220:53:292
23408993529,4cyclictest33-21ksoftirqd/223:56:112
23408993529,4cyclictest33-21ksoftirqd/223:25:052
23408993529,4cyclictest33-21ksoftirqd/223:00:502
23408993529,4cyclictest33-21ksoftirqd/221:45:002
23408993529,4cyclictest33-21ksoftirqd/219:48:502
23407993530,3cyclictest25-21ksoftirqd/121:30:591
23407993530,3cyclictest25-21ksoftirqd/120:01:081
23407993529,4cyclictest25-21ksoftirqd/121:55:021
23407993529,4cyclictest25-21ksoftirqd/120:50:351
23407993529,3cyclictest25-21ksoftirqd/123:49:591
23407993529,3cyclictest25-21ksoftirqd/121:40:001
23407993528,4cyclictest25-21ksoftirqd/123:10:161
23406993529,4cyclictest9-21ksoftirqd/023:48:270
23406993529,4cyclictest9-21ksoftirqd/023:22:100
23406993529,4cyclictest9-21ksoftirqd/021:11:510
23406993529,4cyclictest9-21ksoftirqd/020:37:220
23406993529,4cyclictest9-21ksoftirqd/020:07:290
23406993529,4cyclictest9-21ksoftirqd/000:24:450
23406993528,5cyclictest9-21ksoftirqd/023:26:310
138491350,0ptp4l401ktimersoftd/300:20:253
23409993428,4cyclictest41-21ksoftirqd/321:43:083
23409993428,4cyclictest41-21ksoftirqd/320:38:013
23408993429,3cyclictest33-21ksoftirqd/223:49:592
23408993429,3cyclictest33-21ksoftirqd/200:10:562
23408993428,4cyclictest33-21ksoftirqd/223:51:352
23408993428,4cyclictest33-21ksoftirqd/223:06:322
23408993428,4cyclictest33-21ksoftirqd/222:51:552
23408993428,4cyclictest33-21ksoftirqd/222:35:552
23408993428,4cyclictest33-21ksoftirqd/221:53:392
23408993428,4cyclictest33-21ksoftirqd/221:29:472
23408993428,4cyclictest33-21ksoftirqd/220:30:342
23408993428,4cyclictest33-21ksoftirqd/220:23:282
23408993428,4cyclictest33-21ksoftirqd/219:51:262
23408993428,4cyclictest33-21ksoftirqd/219:22:502
23407993429,3cyclictest25-21ksoftirqd/122:10:171
23407993429,3cyclictest25-21ksoftirqd/121:40:201
23407993429,3cyclictest25-21ksoftirqd/120:45:131
23407993429,3cyclictest25-21ksoftirqd/119:17:011
23407993428,4cyclictest25-21ksoftirqd/123:29:261
23407993428,4cyclictest25-21ksoftirqd/122:26:351
23407993428,4cyclictest25-21ksoftirqd/120:15:451
23407993428,3cyclictest25-21ksoftirqd/122:35:001
23407993427,5cyclictest25-21ksoftirqd/120:31:041
23406993430,3cyclictest9-21ksoftirqd/000:30:130
23406993430,3cyclictest9-21ksoftirqd/000:30:130
23406993429,3cyclictest9-21ksoftirqd/019:56:250
23406993428,4cyclictest9-21ksoftirqd/023:31:530
23406993428,4cyclictest9-21ksoftirqd/023:31:530
23406993428,4cyclictest9-21ksoftirqd/021:59:340
23406993428,4cyclictest9-21ksoftirqd/020:53:190
23406993428,4cyclictest9-21ksoftirqd/000:06:480
23409993328,3cyclictest41-21ksoftirqd/323:30:123
23409993328,3cyclictest41-21ksoftirqd/323:30:123
23409993328,3cyclictest138491ptp4l22:53:023
23409993327,4cyclictest41-21ksoftirqd/322:58:073
23409993327,4cyclictest41-21ksoftirqd/322:01:343
23409993327,4cyclictest41-21ksoftirqd/320:19:243
23409993327,4cyclictest41-21ksoftirqd/320:11:373
23409993327,4cyclictest41-21ksoftirqd/319:49:553
23409993327,4cyclictest41-21ksoftirqd/319:17:173
23409993319,5cyclictest41-21ksoftirqd/323:52:023
23409993318,4cyclictest41-21ksoftirqd/322:45:233
23408993328,3cyclictest33-21ksoftirqd/223:12:532
23408993328,3cyclictest33-21ksoftirqd/221:45:122
23408993328,3cyclictest33-21ksoftirqd/200:15:102
23408993327,4cyclictest33-21ksoftirqd/223:42:542
23408993327,4cyclictest33-21ksoftirqd/222:41:252
23408993327,4cyclictest33-21ksoftirqd/222:18:542
23408993327,4cyclictest33-21ksoftirqd/220:48:072
23408993327,4cyclictest33-21ksoftirqd/220:17:572
23408993327,4cyclictest33-21ksoftirqd/220:03:422
23407993328,3cyclictest25641-21cron19:15:001
23407993328,3cyclictest25-21ksoftirqd/122:53:451
23407993328,3cyclictest25-21ksoftirqd/122:09:531
23407993328,3cyclictest25-21ksoftirqd/119:48:491
23407993327,4cyclictest25-21ksoftirqd/123:58:541
23407993327,4cyclictest25-21ksoftirqd/121:11:211
23407993327,4cyclictest25-21ksoftirqd/119:56:511
23407993327,4cyclictest25-21ksoftirqd/119:29:511
23407993326,4cyclictest25-21ksoftirqd/120:59:591
23407993326,4cyclictest25-21ksoftirqd/100:25:461
23406993329,3cyclictest9-21ksoftirqd/000:10:180
23406993328,3cyclictest9-21ksoftirqd/023:40:090
23406993328,3cyclictest9-21ksoftirqd/022:20:000
23406993328,3cyclictest9-21ksoftirqd/022:05:030
23406993328,3cyclictest9-21ksoftirqd/021:50:280
23406993328,3cyclictest9-21ksoftirqd/021:25:110
23406993328,3cyclictest9-21ksoftirqd/020:47:140
23406993328,3cyclictest9-21ksoftirqd/000:03:100
23406993327,4cyclictest9-21ksoftirqd/022:36:210
23406993327,4cyclictest9-21ksoftirqd/021:06:550
23406993327,4cyclictest9-21ksoftirqd/020:58:280
23406993327,4cyclictest9-21ksoftirqd/020:40:510
23406993327,4cyclictest9-21ksoftirqd/019:20:510
23406993327,4cyclictest9-21ksoftirqd/000:39:130
23406993326,4cyclictest9-21ksoftirqd/020:01:590
23409993228,3cyclictest41-21ksoftirqd/319:42:103
23409993226,4cyclictest41-21ksoftirqd/323:08:543
23409993226,4cyclictest41-21ksoftirqd/320:02:103
23409993225,4cyclictest41-21ksoftirqd/321:27:483
23408993227,3cyclictest33-21ksoftirqd/221:12:232
23408993227,3cyclictest33-21ksoftirqd/220:15:012
23408993226,4cyclictest33-21ksoftirqd/223:30:422
23408993226,4cyclictest33-21ksoftirqd/223:30:422
23408993226,4cyclictest33-21ksoftirqd/219:37:062
23408993226,4cyclictest33-21ksoftirqd/219:12:432
23407993227,3cyclictest25-21ksoftirqd/120:35:451
23407993227,3cyclictest25-21ksoftirqd/100:30:511
23407993227,3cyclictest25-21ksoftirqd/100:30:511
23407993226,4cyclictest25-21ksoftirqd/123:33:471
23407993226,4cyclictest25-21ksoftirqd/123:33:471
23407993226,4cyclictest25-21ksoftirqd/121:52:441
23407993226,4cyclictest25-21ksoftirqd/121:15:301
23407993226,4cyclictest25-21ksoftirqd/120:27:361
23407993225,5cyclictest25-21ksoftirqd/120:11:231
23407993222,9cyclictest25-21ksoftirqd/123:50:161
23406993227,3cyclictest9-21ksoftirqd/022:32:040
23406993227,3cyclictest9-21ksoftirqd/022:25:410
23406993226,4cyclictest9-21ksoftirqd/022:55:340
23406993226,4cyclictest9-21ksoftirqd/022:53:450
23406993226,4cyclictest9-21ksoftirqd/022:14:150
23406993226,4cyclictest9-21ksoftirqd/021:35:100
23406993226,4cyclictest9-21ksoftirqd/021:17:300
23406993226,4cyclictest9-21ksoftirqd/021:04:020
23406993226,4cyclictest9-21ksoftirqd/020:17:520
23406993225,5cyclictest9-21ksoftirqd/000:16:260
23409993126,3cyclictest41-21ksoftirqd/322:16:153
23409993126,3cyclictest41-21ksoftirqd/320:24:223
23409993126,3cyclictest41-21ksoftirqd/319:27:033
23409993125,4cyclictest41-21ksoftirqd/323:15:173
23409993125,4cyclictest41-21ksoftirqd/300:14:453
23408993127,3cyclictest33-21ksoftirqd/219:30:182
23408993126,3cyclictest33-21ksoftirqd/220:41:542
23408993125,4cyclictest33-21ksoftirqd/222:25:552
23408993125,4cyclictest33-21ksoftirqd/222:13:322
23408993125,4cyclictest33-21ksoftirqd/221:33:292
23408993125,4cyclictest33-21ksoftirqd/221:17:442
23408993125,4cyclictest33-21ksoftirqd/219:15:042
23407993126,3cyclictest25-21ksoftirqd/121:10:001
23407993126,3cyclictest25-21ksoftirqd/120:40:181
23407993125,4cyclictest25-21ksoftirqd/122:44:361
23407993125,4cyclictest25-21ksoftirqd/120:09:021
23407993124,4cyclictest25-21ksoftirqd/122:17:001
23406993126,3cyclictest9-21ksoftirqd/021:46:100
23406993126,3cyclictest9-21ksoftirqd/020:25:100
23406993126,3cyclictest9-21ksoftirqd/020:10:190
23406993126,3cyclictest9-21ksoftirqd/000:00:000
23406993125,4cyclictest9-21ksoftirqd/023:36:180
23406993125,4cyclictest9-21ksoftirqd/022:04:270
138491310,0ptp4l401ktimersoftd/320:25:193
138491310,0ptp4l401ktimersoftd/319:50:233
23409993024,4cyclictest41-21ksoftirqd/323:46:523
23409993024,4cyclictest41-21ksoftirqd/300:08:073
23409993023,5cyclictest41-21ksoftirqd/321:53:123
23409993022,3cyclictest41-21ksoftirqd/322:10:103
23408993025,3cyclictest33-21ksoftirqd/221:36:492
23408993025,3cyclictest33-21ksoftirqd/200:33:522
23408993025,3cyclictest33-21ksoftirqd/200:33:522
23408993024,4cyclictest33-21ksoftirqd/221:00:472
23408993024,4cyclictest33-21ksoftirqd/219:25:032
2340899300,2cyclictest0-21swapper/222:04:322
23407993025,3cyclictest25-21ksoftirqd/100:05:181
23407993024,4cyclictest25-21ksoftirqd/119:24:091
23406993027,2cyclictest9-21ksoftirqd/019:50:010
23406993025,3cyclictest9-21ksoftirqd/021:42:490
23406993025,3cyclictest9-21ksoftirqd/019:15:180
23406993024,4cyclictest9-21ksoftirqd/023:53:440
23406993024,4cyclictest9-21ksoftirqd/023:01:410
23406993023,4cyclictest9-21ksoftirqd/020:34:250
138491300,0ptp4l401ktimersoftd/323:36:523
138491300,0ptp4l401ktimersoftd/300:03:093
23409992924,3cyclictest41-21ksoftirqd/321:48:133
23409992923,4cyclictest41-21ksoftirqd/321:14:283
23408992924,3cyclictest33-21ksoftirqd/223:20:402
23408992924,3cyclictest33-21ksoftirqd/221:24:562
23408992924,3cyclictest33-21ksoftirqd/219:55:422
23408992923,4cyclictest33-21ksoftirqd/221:59:432
23407992924,3cyclictest25-21ksoftirqd/120:22:121
23407992924,3cyclictest25-21ksoftirqd/100:35:151
23407992923,4cyclictest25-21ksoftirqd/123:07:221
23407992923,4cyclictest25-21ksoftirqd/100:03:351
23406992925,2cyclictest9-21ksoftirqd/019:50:240
23406992924,3cyclictest9-21ksoftirqd/021:34:270
23406992924,3cyclictest9-21ksoftirqd/019:35:200
138491290,0ptp4l401ktimersoftd/321:17:383
138491290,0ptp4l401ktimersoftd/320:31:313
23409992822,4cyclictest41-21ksoftirqd/319:33:143
23408992824,3cyclictest33-21ksoftirqd/200:05:182
23407992823,3cyclictest25-21ksoftirqd/119:30:471
23407992822,4cyclictest25-21ksoftirqd/122:01:321
23407992822,3cyclictest25-21ksoftirqd/123:00:111
23406992823,3cyclictest9-21ksoftirqd/023:12:400
23406992823,3cyclictest9-21ksoftirqd/019:41:340
23406992823,3cyclictest9-21ksoftirqd/019:29:460
23406992822,4cyclictest9-21ksoftirqd/022:41:070
23406992822,4cyclictest9-21ksoftirqd/000:25:130
23409992721,4cyclictest41-21ksoftirqd/323:27:513
23408992722,3cyclictest33-21ksoftirqd/222:34:292
23408992722,3cyclictest33-21ksoftirqd/220:28:462
23408992721,4cyclictest33-21ksoftirqd/222:05:022
23408992721,4cyclictest33-21ksoftirqd/200:38:262
23406992721,4cyclictest9-21ksoftirqd/023:08:350
23409992621,3cyclictest41-21ksoftirqd/320:56:533
23409992621,3cyclictest41-21ksoftirqd/320:45:073
23409992620,4cyclictest41-21ksoftirqd/320:07:353
23409992620,4cyclictest41-21ksoftirqd/319:55:333
23408992622,3cyclictest33-21ksoftirqd/223:36:102
23408992621,3cyclictest33-21ksoftirqd/223:15:132
23407992621,3cyclictest25-21ksoftirqd/122:55:291
23406992621,3cyclictest9-21ksoftirqd/021:24:440
23406992620,4cyclictest9-21ksoftirqd/019:10:440
23407992520,3cyclictest25-21ksoftirqd/123:40:171
23407992520,3cyclictest25-21ksoftirqd/123:39:331
23407992519,3cyclictest25-21ksoftirqd/122:20:201
23406992519,4cyclictest9-21ksoftirqd/023:19:090
23407992419,3cyclictest25-21ksoftirqd/119:35:131
23406992419,3cyclictest9-21ksoftirqd/020:24:080
23407992318,3cyclictest25-21ksoftirqd/119:50:171
23406992319,2cyclictest9-21ksoftirqd/019:30:120
23408992016,3cyclictest33-21ksoftirqd/221:10:002
23408992013,4cyclictest6268-21sh22:55:132
2340899193,13cyclictest7305-21ptp4l19:40:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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