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2025-12-17 - 09:12
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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 rackdslot4.osadl.org (updated Wed Dec 17, 2025 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/319:08:293
115392203170,22sleep20-21swapper/219:09:232
113672201168,22sleep10-21swapper/119:07:091
112742199166,22sleep00-21swapper/019:05:550
11880996259,2cyclictest231rcuc/123:04:011
247732550,1sleep30-21swapper/321:45:003
11881995220,7cyclictest33-21ksoftirqd/219:25:002
11881995122,7cyclictest33-21ksoftirqd/221:30:012
11880995021,6cyclictest25-21ksoftirqd/122:40:401
11880995021,3cyclictest25-21ksoftirqd/120:28:451
11880995020,3cyclictest25-21ksoftirqd/100:07:211
138491490,0ptp4l401ktimersoftd/321:00:083
11881994919,4cyclictest33-21ksoftirqd/223:20:232
11881994918,7cyclictest33-21ksoftirqd/223:00:002
11881994912,6cyclictest33-21ksoftirqd/220:55:002
11880994920,3cyclictest25-21ksoftirqd/123:54:461
11881994819,4cyclictest33-21ksoftirqd/222:20:282
11881994814,5cyclictest33-21ksoftirqd/223:45:002
11881994813,4cyclictest33-21ksoftirqd/221:20:002
11881994813,4cyclictest33-21ksoftirqd/221:19:592
1188099483,6cyclictest27758-21irqrtprio20:45:171
11880994821,7cyclictest25-21ksoftirqd/122:20:021
11880994820,3cyclictest25-21ksoftirqd/120:43:581
11880994819,3cyclictest25-21ksoftirqd/123:55:461
138491470,1ptp4l401ktimersoftd/320:21:373
11881994717,4cyclictest33-21ksoftirqd/221:30:192
11880994720,6cyclictest25-21ksoftirqd/100:00:431
11882994633,11cyclictest41-21ksoftirqd/322:59:593
11881994614,6cyclictest33-21ksoftirqd/223:25:122
11881994611,6cyclictest33-21ksoftirqd/220:49:592
1187999462,41cyclictest13460-21grep23:30:190
11881994532,10cyclictest33-21ksoftirqd/223:10:182
11881994513,4cyclictest33-21ksoftirqd/222:05:182
11881994511,6cyclictest33-21ksoftirqd/200:15:182
11881994510,6cyclictest33-21ksoftirqd/200:05:182
138491440,0ptp4l401ktimersoftd/323:45:073
11881994431,9cyclictest33-21ksoftirqd/221:50:242
11881994416,3cyclictest33-21ksoftirqd/220:55:192
11881994415,7cyclictest33-21ksoftirqd/221:45:142
11881994414,8cyclictest33-21ksoftirqd/223:35:202
11881994412,5cyclictest33-21ksoftirqd/222:35:002
11881994411,5cyclictest33-21ksoftirqd/220:40:262
1188199440,42cyclictest0-21swapper/221:20:222
138491430,0ptp4l401ktimersoftd/323:10:253
1188199439,5cyclictest33-21ksoftirqd/200:25:242
1188199438,6cyclictest33-21ksoftirqd/220:30:132
1188199437,5cyclictest33-21ksoftirqd/200:20:132
11881994336,4cyclictest33-21ksoftirqd/223:20:002
1188199432,3cyclictest121rcu_preempt22:15:012
11881994317,2cyclictest33-21ksoftirqd/222:26:102
11881994310,6cyclictest33-21ksoftirqd/219:55:172
138491420,0ptp4l401ktimersoftd/320:14:273
138491420,0ptp4l401ktimersoftd/320:05:263
1188199429,7cyclictest33-21ksoftirqd/221:40:272
1188199429,6cyclictest33-21ksoftirqd/223:55:172
1188199429,6cyclictest33-21ksoftirqd/200:00:142
1188199429,5cyclictest33-21ksoftirqd/221:00:012
1188199428,6cyclictest33-21ksoftirqd/221:55:132
1188199428,6cyclictest33-21ksoftirqd/221:05:142
1188199427,6cyclictest33-21ksoftirqd/223:00:282
11881994236,3cyclictest33-21ksoftirqd/222:40:002
11881994218,6cyclictest33-21ksoftirqd/219:40:012
11881994212,4cyclictest33-21ksoftirqd/222:45:162
11881994211,6cyclictest33-21ksoftirqd/200:35:012
11881994211,5cyclictest33-21ksoftirqd/221:15:002
11881994211,5cyclictest33-21ksoftirqd/219:10:252
11881994211,3cyclictest33-21ksoftirqd/223:05:242
11881994210,6cyclictest33-21ksoftirqd/222:40:162
11881994210,4cyclictest33-21ksoftirqd/220:10:202
138491410,1ptp4l401ktimersoftd/322:53:433
138491410,0ptp4l401ktimersoftd/321:25:223
11881994111,9cyclictest33-21ksoftirqd/219:55:002
11881994111,4cyclictest33-21ksoftirqd/220:15:152
11881994110,5cyclictest33-21ksoftirqd/223:50:232
1188199409,5cyclictest33-21ksoftirqd/220:35:232
1188199409,4cyclictest33-21ksoftirqd/220:25:182
1188199409,3cyclictest33-21ksoftirqd/223:45:132
1188199408,5cyclictest33-21ksoftirqd/200:10:252
1188199407,6cyclictest33-21ksoftirqd/219:15:132
1188199405,6cyclictest33-21ksoftirqd/219:45:142
11881994012,3cyclictest33-21ksoftirqd/223:30:142
11881994011,8cyclictest33-21ksoftirqd/222:05:002
11881994011,7cyclictest33-21ksoftirqd/222:20:012
1188099405,6cyclictest4197-21awk23:10:271
138491390,20ptp4l3799migration/319:43:583
11882993933,3cyclictest420-21rs:main3
1188199398,7cyclictest33-21ksoftirqd/200:35:142
1188199393,5cyclictest33-21ksoftirqd/220:00:122
11881993910,4cyclictest33-21ksoftirqd/221:35:012
11881993826,9cyclictest33-21ksoftirqd/220:05:182
11881993810,7cyclictest33-21ksoftirqd/222:50:132
11882993732,3cyclictest41-21ksoftirqd/321:45:133
11882993731,4cyclictest41-21ksoftirqd/320:18:033
11881993731,3cyclictest33-21ksoftirqd/219:45:002
11881993731,3cyclictest33-21ksoftirqd/219:25:142
1188099374,5cyclictest71182sleep100:24:521
11880993713,3cyclictest25-21ksoftirqd/123:32:551
11880993713,3cyclictest25-21ksoftirqd/122:57:321
11880993713,3cyclictest25-21ksoftirqd/100:16:241
11879993731,4cyclictest9-21ksoftirqd/021:24:500
11879993731,3cyclictest9-21ksoftirqd/023:00:000
11879993731,3cyclictest9-21ksoftirqd/020:10:200
11882993631,3cyclictest41-21ksoftirqd/300:35:003
11882993630,4cyclictest41-21ksoftirqd/323:32:153
11882993630,4cyclictest41-21ksoftirqd/322:07:583
11882993630,4cyclictest41-21ksoftirqd/319:45:053
11882993629,4cyclictest41-21ksoftirqd/320:00:003
1188299361,2cyclictest121rcu_preempt20:29:493
1188199365,4cyclictest33-21ksoftirqd/219:30:252
1188099364,9cyclictest25-21ksoftirqd/120:20:141
1188099362,6cyclictest25-21ksoftirqd/119:31:451
11880993612,8cyclictest25-21ksoftirqd/121:17:201
11880993612,8cyclictest25-21ksoftirqd/121:17:201
11879993632,2cyclictest9-21ksoftirqd/023:50:000
11879993632,2cyclictest9-21ksoftirqd/021:30:000
11879993632,2cyclictest9-21ksoftirqd/019:25:000
11879993631,3cyclictest9-21ksoftirqd/022:25:000
11879993631,3cyclictest9-21ksoftirqd/022:20:010
11879993631,3cyclictest9-21ksoftirqd/022:15:010
11879993631,3cyclictest9-21ksoftirqd/019:30:000
11879993631,3cyclictest9-21ksoftirqd/000:20:150
11879993630,4cyclictest9-21ksoftirqd/023:54:460
11879993630,3cyclictest9-21ksoftirqd/022:10:010
11879993630,3cyclictest9-21ksoftirqd/021:45:000
11882993529,4cyclictest41-21ksoftirqd/323:44:273
11882993529,4cyclictest41-21ksoftirqd/323:18:593
11882993529,4cyclictest41-21ksoftirqd/322:32:543
11882993529,4cyclictest41-21ksoftirqd/300:14:113
11881993530,3cyclictest33-21ksoftirqd/220:25:012
1188099354,6cyclictest25-21ksoftirqd/119:35:231
1188099353,4cyclictest25-21ksoftirqd/123:15:181
11880993529,4cyclictest25-21ksoftirqd/122:54:131
11880993529,4cyclictest25-21ksoftirqd/100:39:321
11880993529,4cyclictest25-21ksoftirqd/100:34:301
11880993529,3cyclictest25-21ksoftirqd/119:45:121
11880993528,4cyclictest25-21ksoftirqd/122:14:011
11880993515,8cyclictest25-21ksoftirqd/120:10:221
1188099351,4cyclictest25-21ksoftirqd/123:25:031
11880993513,2cyclictest25-21ksoftirqd/122:04:381
11880993513,2cyclictest25-21ksoftirqd/121:55:311
11880993512,2cyclictest25-21ksoftirqd/119:13:561
11879993530,3cyclictest9-21ksoftirqd/021:15:180
11879993530,3cyclictest9-21ksoftirqd/021:15:180
11879993529,4cyclictest9-21ksoftirqd/023:18:350
11879993529,4cyclictest9-21ksoftirqd/022:51:200
11879993529,4cyclictest9-21ksoftirqd/020:51:380
11879993529,4cyclictest9-21ksoftirqd/000:04:530
11882993430,2cyclictest41-21ksoftirqd/322:40:013
11882993428,4cyclictest41-21ksoftirqd/323:37:533
11882993428,4cyclictest41-21ksoftirqd/321:51:143
11882993428,4cyclictest41-21ksoftirqd/321:20:003
11882993428,4cyclictest41-21ksoftirqd/321:20:003
11882993428,4cyclictest41-21ksoftirqd/320:41:543
11882993428,4cyclictest41-21ksoftirqd/320:37:043
11882993428,4cyclictest41-21ksoftirqd/320:04:193
11882993428,4cyclictest41-21ksoftirqd/319:29:133
11882993428,3cyclictest41-21ksoftirqd/321:05:113
11882993427,4cyclictest41-21ksoftirqd/323:20:523
1188099344,5cyclictest17199-21date23:40:011
11880993428,4cyclictest25-21ksoftirqd/121:51:121
11880993418,3cyclictest25-21ksoftirqd/100:11:481
1188099341,5cyclictest25-21ksoftirqd/120:07:061
11880993414,6cyclictest25-21ksoftirqd/121:13:231
11880993413,2cyclictest25-21ksoftirqd/123:24:491
11880993412,5cyclictest25-21ksoftirqd/121:37:131
11880993412,2cyclictest25-21ksoftirqd/122:39:521
11880993411,3cyclictest25-21ksoftirqd/123:05:311
11879993430,3cyclictest9-21ksoftirqd/021:55:000
11879993430,3cyclictest9-21ksoftirqd/020:05:180
11879993430,2cyclictest9-21ksoftirqd/023:05:130
11879993428,4cyclictest9-21ksoftirqd/021:57:360
11879993428,4cyclictest9-21ksoftirqd/000:13:510
11879993428,3cyclictest9-21ksoftirqd/019:40:190
11879993427,4cyclictest9-21ksoftirqd/021:11:350
138491330,0ptp4l401ktimersoftd/321:36:583
138491330,0ptp4l401ktimersoftd/320:52:333
138491330,0ptp4l401ktimersoftd/320:45:273
11882993329,2cyclictest41-21ksoftirqd/319:40:003
11882993327,4cyclictest41-21ksoftirqd/323:07:003
11882993327,4cyclictest41-21ksoftirqd/322:03:053
11880993328,3cyclictest25-21ksoftirqd/122:16:081
11880993327,4cyclictest25-21ksoftirqd/123:40:111
11880993327,4cyclictest25-21ksoftirqd/121:44:571
11880993327,4cyclictest25-21ksoftirqd/119:53:581
11880993317,7cyclictest25-21ksoftirqd/119:20:181
11880993315,8cyclictest25-21ksoftirqd/119:29:091
11880993311,2cyclictest25-21ksoftirqd/120:34:441
11879993328,3cyclictest9-21ksoftirqd/023:35:170
11879993328,3cyclictest9-21ksoftirqd/023:20:170
11879993328,3cyclictest9-21ksoftirqd/022:35:130
11879993328,3cyclictest9-21ksoftirqd/022:25:190
11879993327,4cyclictest9-21ksoftirqd/023:42:180
11879993327,4cyclictest9-21ksoftirqd/023:11:250
11879993327,4cyclictest9-21ksoftirqd/023:05:000
11879993327,4cyclictest9-21ksoftirqd/022:40:050
11879993327,4cyclictest9-21ksoftirqd/021:48:180
11879993327,4cyclictest9-21ksoftirqd/021:34:020
11879993327,4cyclictest9-21ksoftirqd/020:58:160
11879993327,4cyclictest9-21ksoftirqd/019:50:400
138491320,10ptp4l401ktimersoftd/322:17:553
138491320,0ptp4l401ktimersoftd/319:31:083
11882993227,3cyclictest41-21ksoftirqd/300:24:593
11882993227,3cyclictest41-21ksoftirqd/300:04:103
11882993226,4cyclictest41-21ksoftirqd/323:03:153
11882993226,4cyclictest41-21ksoftirqd/320:30:433
11882993226,4cyclictest41-21ksoftirqd/319:12:243
11882993226,4cyclictest41-21ksoftirqd/300:25:103
11880993227,3cyclictest25-21ksoftirqd/122:25:541
11880993227,3cyclictest25-21ksoftirqd/120:15:171
11880993226,4cyclictest25-21ksoftirqd/121:07:221
1188099322,5cyclictest25-21ksoftirqd/121:03:441
11880993213,6cyclictest25-21ksoftirqd/121:49:131
11880993212,2cyclictest25-21ksoftirqd/123:46:241
11879993228,3cyclictest9-21ksoftirqd/020:25:180
11879993228,2cyclictest9-21ksoftirqd/019:30:170
11879993227,3cyclictest9-21ksoftirqd/023:29:590
11879993227,3cyclictest9-21ksoftirqd/022:34:590
11879993227,3cyclictest9-21ksoftirqd/020:20:260
11879993227,3cyclictest9-21ksoftirqd/000:30:000
11879993226,4cyclictest9-21ksoftirqd/019:46:470
11879993226,4cyclictest9-21ksoftirqd/000:37:590
11882993126,3cyclictest41-21ksoftirqd/322:40:183
11882993125,4cyclictest41-21ksoftirqd/322:27:123
11882993125,4cyclictest41-21ksoftirqd/322:12:113
11882993125,4cyclictest41-21ksoftirqd/321:31:003
11880993127,2cyclictest231rcuc/121:20:521
11880993124,4cyclictest25-21ksoftirqd/120:01:321
11880993110,6cyclictest25-21ksoftirqd/119:58:021
11879993126,3cyclictest9-21ksoftirqd/020:30:190
11879993126,3cyclictest9-21ksoftirqd/019:40:000
11879993125,4cyclictest9-21ksoftirqd/023:59:030
11879993125,4cyclictest9-21ksoftirqd/022:03:090
11879993125,4cyclictest9-21ksoftirqd/021:36:270
11879993125,4cyclictest9-21ksoftirqd/020:19:240
11879993125,4cyclictest9-21ksoftirqd/020:04:400
138491300,9ptp4l401ktimersoftd/323:25:393
138491300,9ptp4l401ktimersoftd/321:56:543
138491300,0ptp4l401ktimersoftd/300:06:333
11882993026,2cyclictest41-21ksoftirqd/320:55:193
11882993025,3cyclictest41-21ksoftirqd/322:46:303
11882993024,4cyclictest41-21ksoftirqd/323:57:143
11882993024,4cyclictest41-21ksoftirqd/319:23:513
11880993023,4cyclictest25-21ksoftirqd/122:47:031
11879993025,3cyclictest9-21ksoftirqd/022:46:430
11879993025,3cyclictest9-21ksoftirqd/019:10:580
11879993025,3cyclictest9-21ksoftirqd/000:06:520
11879993024,4cyclictest9-21ksoftirqd/020:41:390
138491290,0ptp4l401ktimersoftd/322:21:343
138491290,0ptp4l401ktimersoftd/321:11:443
138491290,0ptp4l401ktimersoftd/319:50:363
1188099294,5cyclictest25-21ksoftirqd/121:33:021
11880992925,3cyclictest25-21ksoftirqd/119:40:401
11880992923,4cyclictest25-21ksoftirqd/122:34:001
11880992923,4cyclictest25-21ksoftirqd/122:06:441
11879992924,3cyclictest9-21ksoftirqd/020:35:170
11879992924,3cyclictest9-21ksoftirqd/019:15:180
11879992924,3cyclictest9-21ksoftirqd/000:30:190
11879992923,4cyclictest9-21ksoftirqd/000:15:480
11882992823,3cyclictest41-21ksoftirqd/321:20:193
11880992825,1cyclictest231rcuc/120:51:201
11882992722,3cyclictest41-21ksoftirqd/319:15:253
11880992723,2cyclictest25-21ksoftirqd/121:00:011
11880992722,3cyclictest25-21ksoftirqd/121:26:291
11880992721,4cyclictest25-21ksoftirqd/119:15:161
11880992721,4cyclictest25-21ksoftirqd/100:27:001
11879992722,3cyclictest9-21ksoftirqd/021:01:160
11879992721,4cyclictest9-21ksoftirqd/020:46:390
11880992618,3cyclictest25-21ksoftirqd/120:37:371
11879992621,3cyclictest9-21ksoftirqd/021:06:320
11879992621,3cyclictest9-21ksoftirqd/019:56:340
138491250,0ptp4l401ktimersoftd/323:52:593
11882992520,3cyclictest41-21ksoftirqd/300:38:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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