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2026-06-29 - 06:30
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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 rackdslot4.osadl.org (updated Mon Jun 29, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591223163,48phc2sys0-21swapper/319:09:463
239882217173,19sleep10-21swapper/119:05:591
239872205171,22sleep00-21swapper/019:05:580
242992204170,22sleep20-21swapper/219:09:542
2430928162,10sleep10-21swapper/119:10:001
24603997630,4cyclictest33-21ksoftirqd/222:48:082
24604996631,4cyclictest41-21ksoftirqd/300:25:003
24603996628,8cyclictest33-21ksoftirqd/223:15:292
24603996628,8cyclictest33-21ksoftirqd/223:15:292
8492620,3sleep30-21swapper/321:35:233
24603996127,4cyclictest33-21ksoftirqd/220:00:162
24603996118,8cyclictest33-21ksoftirqd/222:40:002
24603996021,4cyclictest33-21ksoftirqd/219:40:282
24603995928,10cyclictest33-21ksoftirqd/223:25:242
24603995921,8cyclictest33-21ksoftirqd/221:10:192
24603995919,4cyclictest33-21ksoftirqd/220:25:242
24603995916,8cyclictest33-21ksoftirqd/221:35:222
24603995823,6cyclictest33-21ksoftirqd/221:45:162
24603995823,4cyclictest33-21ksoftirqd/220:40:242
24603995819,4cyclictest33-21ksoftirqd/222:55:232
24603995723,10cyclictest33-21ksoftirqd/219:25:222
24603995720,4cyclictest33-21ksoftirqd/221:40:242
24603995714,8cyclictest33-21ksoftirqd/221:05:172
24604995621,4cyclictest41-21ksoftirqd/323:55:003
24603995626,10cyclictest33-21ksoftirqd/223:35:002
24603995623,7cyclictest33-21ksoftirqd/222:45:002
24604995525,4cyclictest41-21ksoftirqd/321:00:243
2460399556,8cyclictest33-21ksoftirqd/200:35:152
24603995524,8cyclictest33-21ksoftirqd/219:45:242
24603995522,3cyclictest33-21ksoftirqd/221:30:262
24603995513,9cyclictest33-21ksoftirqd/219:20:142
199672550,5sleep119969-21fschecks_time20:05:161
138491550,1ptp4l401ktimersoftd/323:20:153
138491550,1ptp4l401ktimersoftd/320:23:533
24604995425,6cyclictest41-21ksoftirqd/323:15:143
24604995425,6cyclictest41-21ksoftirqd/323:15:143
24604995423,4cyclictest41-21ksoftirqd/321:15:213
24604995423,3cyclictest41-21ksoftirqd/321:25:263
2460399545,8cyclictest33-21ksoftirqd/222:50:142
24603995419,5cyclictest33-21ksoftirqd/221:55:262
24603995415,9cyclictest33-21ksoftirqd/220:55:182
24604995321,3cyclictest41-21ksoftirqd/322:05:183
24604995321,3cyclictest41-21ksoftirqd/321:55:243
24603995325,9cyclictest33-21ksoftirqd/220:05:132
24603995323,10cyclictest33-21ksoftirqd/223:55:142
24603995320,10cyclictest33-21ksoftirqd/200:25:012
24603995315,8cyclictest33-21ksoftirqd/219:50:232
24603995315,4cyclictest33-21ksoftirqd/220:19:592
24603995314,8cyclictest33-21ksoftirqd/222:30:122
24603995313,9cyclictest33-21ksoftirqd/222:10:182
24603995313,9cyclictest33-21ksoftirqd/222:10:182
24604995220,4cyclictest41-21ksoftirqd/300:10:203
24603995226,11cyclictest33-21ksoftirqd/223:45:012
24603995218,9cyclictest33-21ksoftirqd/219:15:252
24603995218,4cyclictest33-21ksoftirqd/223:04:082
81242510,2sleep00-21swapper/020:45:180
24604995124,7cyclictest41-21ksoftirqd/322:45:173
24604995124,3cyclictest41-21ksoftirqd/322:10:153
24604995124,3cyclictest41-21ksoftirqd/322:10:153
24604995122,3cyclictest41-21ksoftirqd/321:05:153
24604995121,3cyclictest41-21ksoftirqd/322:00:233
24604995121,3cyclictest41-21ksoftirqd/319:35:003
24604995117,4cyclictest41-21ksoftirqd/319:25:163
2460399516,8cyclictest33-21ksoftirqd/220:10:252
2460399515,4cyclictest33-21ksoftirqd/221:50:172
24603995118,4cyclictest33-21ksoftirqd/219:10:172
24603995117,7cyclictest33-21ksoftirqd/220:39:372
254372500,5sleep025438-21irqrtprio22:25:200
24604995022,3cyclictest41-21ksoftirqd/321:40:143
24604995020,4cyclictest41-21ksoftirqd/321:45:243
2460399507,3cyclictest33-21ksoftirqd/221:15:142
2460399506,9cyclictest33-21ksoftirqd/222:20:282
2460399501,9cyclictest33-21ksoftirqd/200:00:242
2460399498,9cyclictest33-21ksoftirqd/223:45:182
2460399498,9cyclictest33-21ksoftirqd/223:45:182
24603994920,8cyclictest33-21ksoftirqd/219:55:162
24603994917,7cyclictest33-21ksoftirqd/200:16:452
24603994917,7cyclictest33-21ksoftirqd/200:16:452
24603994911,4cyclictest33-21ksoftirqd/223:50:192
24604994833,12cyclictest41-21ksoftirqd/320:35:003
24604994821,4cyclictest41-21ksoftirqd/319:40:133
24604994821,3cyclictest41-21ksoftirqd/320:45:133
24604994820,3cyclictest41-21ksoftirqd/320:40:223
24604994817,4cyclictest41-21ksoftirqd/319:55:193
2460399485,9cyclictest33-21ksoftirqd/221:20:282
2460399485,9cyclictest33-21ksoftirqd/221:20:272
24603994821,17cyclictest33-21ksoftirqd/222:25:172
2460399481,8cyclictest33-21ksoftirqd/223:10:202
24603994818,8cyclictest33-21ksoftirqd/222:19:552
2460499473,4cyclictest41-21ksoftirqd/320:25:273
24604994721,3cyclictest41-21ksoftirqd/322:35:243
24604994718,3cyclictest41-21ksoftirqd/323:30:193
24604994716,4cyclictest41-21ksoftirqd/319:45:173
24604994713,3cyclictest41-21ksoftirqd/323:05:143
2460399476,6cyclictest13323-21needreboot00:10:222
2460399476,3cyclictest33-21ksoftirqd/219:30:222
2460399475,5cyclictest33-21ksoftirqd/221:00:132
2460399473,4cyclictest33-21ksoftirqd/220:20:142
24603994734,2cyclictest33-21ksoftirqd/219:35:172
2460399472,5cyclictest33-21ksoftirqd/200:25:242
24604994615,4cyclictest41-21ksoftirqd/321:10:143
24604994615,3cyclictest41-21ksoftirqd/320:10:213
24604994613,4cyclictest41-21ksoftirqd/319:35:173
2460399466,2cyclictest33-21ksoftirqd/223:35:192
2460399465,8cyclictest33-21ksoftirqd/222:05:152
2460399465,2cyclictest121rcu_preempt20:45:152
2460399463,7cyclictest33-21ksoftirqd/200:30:172
2460399462,6cyclictest33-21ksoftirqd/222:00:262
2460399462,5cyclictest33-21ksoftirqd/221:25:112
2460399461,5cyclictest11017-21ls00:05:232
24604994516,4cyclictest41-21ksoftirqd/323:40:163
24604994516,4cyclictest41-21ksoftirqd/323:10:143
24604994510,7cyclictest41-21ksoftirqd/323:00:163
2460499450,2cyclictest121rcu_preempt20:55:003
2460399453,2cyclictest121rcu_preempt20:30:152
24603994514,9cyclictest33-21ksoftirqd/223:05:332
24604994431,3cyclictest41-21ksoftirqd/322:20:273
24604994415,4cyclictest41-21ksoftirqd/322:55:003
24604994415,4cyclictest41-21ksoftirqd/300:05:123
24604994413,6cyclictest41-21ksoftirqd/322:25:263
2460399442,5cyclictest33-21ksoftirqd/223:20:142
2460399440,8cyclictest33-21ksoftirqd/220:50:152
138491440,0ptp4l401ktimersoftd/300:00:203
2460499435,3cyclictest32661-21ps23:45:193
2460499435,3cyclictest32661-21ps23:45:183
24604994328,4cyclictest41-21ksoftirqd/300:35:203
2460499432,2cyclictest41-21ksoftirqd/320:15:243
24604994314,4cyclictest41-21ksoftirqd/323:25:263
2460499431,3cyclictest121rcu_preempt21:30:253
24604994312,4cyclictest41-21ksoftirqd/319:20:193
24602994337,3cyclictest24232-21perf21:19:591
2460499429,4cyclictest41-21ksoftirqd/321:50:263
24604994210,4cyclictest41-21ksoftirqd/322:15:223
24604994127,4cyclictest41-21ksoftirqd/321:20:233
24604994127,4cyclictest41-21ksoftirqd/321:20:233
24604994114,4cyclictest41-21ksoftirqd/320:07:383
2460499411,3cyclictest41-21ksoftirqd/320:55:143
2460499410,5cyclictest41-21ksoftirqd/300:33:513
2460499410,2cyclictest121rcu_preempt22:40:233
138491410,1ptp4l401ktimersoftd/323:38:253
24604994011,3cyclictest41-21ksoftirqd/319:10:133
138491400,0ptp4l401ktimersoftd/320:00:003
2460499399,3cyclictest41-21ksoftirqd/300:15:133
2460499399,3cyclictest41-21ksoftirqd/300:15:133
2460499391,3cyclictest121rcu_preempt23:55:233
24604993825,3cyclictest41-21ksoftirqd/300:25:253
24604993810,3cyclictest41-21ksoftirqd/322:30:143
24602993833,3cyclictest6851-21cron19:40:001
24602993833,3cyclictest25-21ksoftirqd/122:00:001
138491380,0ptp4l401ktimersoftd/322:55:123
24604993732,3cyclictest41-21ksoftirqd/320:35:253
24604993730,4cyclictest41-21ksoftirqd/319:53:513
2460499371,2cyclictest121rcu_preempt19:15:143
24602993732,3cyclictest25-21ksoftirqd/119:20:011
24602993731,4cyclictest25-21ksoftirqd/122:35:561
24602993630,4cyclictest25-21ksoftirqd/123:16:191
24602993630,4cyclictest25-21ksoftirqd/123:16:191
24602993630,4cyclictest25-21ksoftirqd/122:53:331
24602993630,4cyclictest25-21ksoftirqd/120:23:091
24601993631,3cyclictest9-21ksoftirqd/000:20:110
24601993630,4cyclictest9-21ksoftirqd/022:05:500
24601993630,4cyclictest9-21ksoftirqd/021:52:410
24601993630,4cyclictest9-21ksoftirqd/019:23:190
24601993628,5cyclictest9-21ksoftirqd/000:39:590
24602993530,3cyclictest25-21ksoftirqd/120:50:121
24602993529,4cyclictest25-21ksoftirqd/121:42:191
24602993529,4cyclictest25-21ksoftirqd/121:13:201
24602993529,4cyclictest25-21ksoftirqd/120:11:021
24602993529,4cyclictest25-21ksoftirqd/119:23:281
24602993529,4cyclictest25-21ksoftirqd/100:16:091
24602993529,4cyclictest25-21ksoftirqd/100:16:081
24602993528,5cyclictest25-21ksoftirqd/122:43:181
24601993530,3cyclictest9-21ksoftirqd/021:06:400
24601993529,4cyclictest9-21ksoftirqd/022:35:060
24601993529,4cyclictest9-21ksoftirqd/020:39:090
24601993529,4cyclictest9-21ksoftirqd/020:10:010
24601993529,4cyclictest9-21ksoftirqd/000:15:250
24601993529,4cyclictest9-21ksoftirqd/000:15:250
24602993429,3cyclictest25-21ksoftirqd/122:18:031
24601993429,3cyclictest9-21ksoftirqd/023:03:260
24601993428,4cyclictest9-21ksoftirqd/022:41:580
24601993428,4cyclictest9-21ksoftirqd/022:24:240
24601993428,4cyclictest9-21ksoftirqd/020:44:290
24601993428,4cyclictest9-21ksoftirqd/019:35:460
24601993428,4cyclictest9-21ksoftirqd/019:12:110
24602993328,3cyclictest25-21ksoftirqd/119:55:001
24602993327,4cyclictest25-21ksoftirqd/123:43:191
24602993327,4cyclictest25-21ksoftirqd/123:06:481
24602993327,4cyclictest25-21ksoftirqd/122:22:431
24602993327,4cyclictest25-21ksoftirqd/121:02:051
24602993327,4cyclictest25-21ksoftirqd/120:43:431
24602993327,4cyclictest25-21ksoftirqd/120:00:381
24602993326,5cyclictest25-21ksoftirqd/123:25:001
24601993328,3cyclictest9-21ksoftirqd/023:55:100
24601993328,3cyclictest9-21ksoftirqd/023:51:000
24601993328,3cyclictest9-21ksoftirqd/000:00:130
24601993327,4cyclictest9-21ksoftirqd/022:53:430
24601993327,4cyclictest9-21ksoftirqd/021:47:520
24601993327,4cyclictest9-21ksoftirqd/021:40:590
24601993327,4cyclictest9-21ksoftirqd/020:30:060
24601993327,4cyclictest9-21ksoftirqd/019:32:410
24601993327,4cyclictest9-21ksoftirqd/000:29:320
24601993326,4cyclictest9-21ksoftirqd/022:00:120
24601993320,4cyclictest9-21ksoftirqd/022:19:370
24602993227,3cyclictest25-21ksoftirqd/123:01:301
24602993227,3cyclictest25-21ksoftirqd/121:35:121
24602993227,3cyclictest25-21ksoftirqd/121:08:011
24602993226,4cyclictest25-21ksoftirqd/123:39:341
24602993226,4cyclictest25-21ksoftirqd/123:27:501
24602993226,4cyclictest25-21ksoftirqd/123:13:221
24602993226,4cyclictest25-21ksoftirqd/122:30:061
24602993226,4cyclictest25-21ksoftirqd/122:27:491
24602993226,4cyclictest25-21ksoftirqd/122:01:411
24602993226,4cyclictest25-21ksoftirqd/120:48:121
24602993226,4cyclictest25-21ksoftirqd/120:19:441
24602993226,4cyclictest25-21ksoftirqd/100:30:421
24602993225,5cyclictest25-21ksoftirqd/119:26:041
24601993227,3cyclictest9-21ksoftirqd/023:49:260
24601993227,3cyclictest9-21ksoftirqd/023:49:260
24601993227,3cyclictest9-21ksoftirqd/019:57:570
24601993227,3cyclictest9-21ksoftirqd/000:07:090
24601993226,4cyclictest9-21ksoftirqd/023:37:170
24601993226,4cyclictest9-21ksoftirqd/023:34:280
24601993226,4cyclictest9-21ksoftirqd/022:47:210
24601993226,4cyclictest9-21ksoftirqd/022:31:570
24601993226,4cyclictest9-21ksoftirqd/021:55:420
24601993226,4cyclictest9-21ksoftirqd/021:20:090
24601993226,4cyclictest9-21ksoftirqd/021:20:090
24602993126,3cyclictest25-21ksoftirqd/120:37:091
24602993125,4cyclictest25-21ksoftirqd/122:57:531
24602993125,4cyclictest25-21ksoftirqd/122:49:081
24602993125,4cyclictest25-21ksoftirqd/119:43:051
24601993126,3cyclictest9-21ksoftirqd/023:41:100
24601993126,3cyclictest9-21ksoftirqd/023:14:300
24601993126,3cyclictest9-21ksoftirqd/020:54:490
24601993125,4cyclictest9-21ksoftirqd/022:56:570
24601993125,4cyclictest9-21ksoftirqd/020:23:070
24601993125,4cyclictest9-21ksoftirqd/019:40:040
24601993125,4cyclictest9-21ksoftirqd/000:30:110
2460199310,2cyclictest0-21swapper/023:24:230
24602993025,3cyclictest25-21ksoftirqd/100:07:021
24602993024,4cyclictest25-21ksoftirqd/100:22:181
24601993025,3cyclictest9-21ksoftirqd/021:14:420
24601993025,3cyclictest9-21ksoftirqd/019:51:180
24601993024,4cyclictest9-21ksoftirqd/023:19:040
24601993024,4cyclictest9-21ksoftirqd/023:19:040
24601993024,4cyclictest9-21ksoftirqd/022:14:240
24601993024,4cyclictest9-21ksoftirqd/022:14:240
24601993024,4cyclictest9-21ksoftirqd/021:34:480
24601993024,4cyclictest9-21ksoftirqd/021:17:360
24601993024,4cyclictest9-21ksoftirqd/019:19:580
24602992924,3cyclictest25-21ksoftirqd/120:32:491
24602992923,4cyclictest25-21ksoftirqd/120:59:431
24602992923,4cyclictest25-21ksoftirqd/120:27:591
24602992922,5cyclictest25-21ksoftirqd/123:51:341
24601992924,3cyclictest9-21ksoftirqd/020:26:000
24601992924,3cyclictest9-21ksoftirqd/019:46:250
24601992923,4cyclictest9-21ksoftirqd/023:25:050
24601992923,4cyclictest9-21ksoftirqd/020:56:420
24601992923,4cyclictest9-21ksoftirqd/020:15:370
24601992920,7cyclictest9-21ksoftirqd/020:10:180
24602992823,3cyclictest25-21ksoftirqd/100:36:111
24602992822,4cyclictest25-21ksoftirqd/123:33:521
24602992822,4cyclictest25-21ksoftirqd/122:12:131
24602992822,4cyclictest25-21ksoftirqd/122:12:131
24602992822,4cyclictest25-21ksoftirqd/122:07:471
24601992823,3cyclictest9-21ksoftirqd/020:03:420
24601992822,4cyclictest9-21ksoftirqd/021:28:220
24601992822,4cyclictest9-21ksoftirqd/019:26:060
24602992722,3cyclictest25-21ksoftirqd/123:46:241
24602992722,3cyclictest25-21ksoftirqd/123:46:231
24602992722,3cyclictest25-21ksoftirqd/100:14:151
24602992721,4cyclictest25-21ksoftirqd/121:46:341
24602992721,4cyclictest25-21ksoftirqd/119:59:381
24601992721,4cyclictest9-21ksoftirqd/023:07:160
24601992721,4cyclictest9-21ksoftirqd/000:10:380
2460299260,2cyclictest121rcu_preempt00:29:591
24602992520,3cyclictest25-21ksoftirqd/123:56:061
24602992520,3cyclictest25-21ksoftirqd/121:32:261
24602992519,4cyclictest25-21ksoftirqd/121:52:471
24602992519,4cyclictest25-21ksoftirqd/100:01:041
24601992518,5cyclictest9-21ksoftirqd/021:39:100
24601992418,4cyclictest9-21ksoftirqd/021:02:520
24602992318,3cyclictest25-21ksoftirqd/121:24:181
24602992318,3cyclictest25-21ksoftirqd/121:24:171
24602992217,3cyclictest25-21ksoftirqd/121:27:151
24602992216,4cyclictest25-21ksoftirqd/119:47:111
24602992216,4cyclictest25-21ksoftirqd/119:30:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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