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2026-09-15 - 05:10
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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 Tue Sep 15, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59742234167,22sleep20-21swapper/219:08:202
58262207173,23sleep10-21swapper/119:06:301
57632205170,23sleep30-21swapper/319:05:393
59102200167,22sleep00-21swapper/019:07:300
138491650,1ptp4l401ktimersoftd/319:23:243
138491600,1ptp4l401ktimersoftd/300:05:383
179172590,7sleep1639899cyclictest21:40:261
138491560,1ptp4l401ktimersoftd/300:35:123
610625437,10sleep20-21swapper/219:10:012
138491530,1ptp4l401ktimersoftd/321:43:103
138491500,0ptp4l401ktimersoftd/321:04:323
149342480,2sleep30-21swapper/319:25:223
138491440,1ptp4l401ktimersoftd/321:31:313
6398994337,3cyclictest23378-21latency_hist20:50:011
1385914332,6phc2sys0-21swapper/319:10:003
138491430,0ptp4l401ktimersoftd/323:25:213
138491430,0ptp4l401ktimersoftd/323:25:213
639799420,2cyclictest121rcu_preempt21:06:050
138491420,0ptp4l401ktimersoftd/323:56:213
138491420,0ptp4l401ktimersoftd/323:56:213
138491410,1ptp4l401ktimersoftd/300:03:253
138491410,0ptp4l401ktimersoftd/320:03:063
6398994034,3cyclictest881-21cron20:05:001
6400993933,3cyclictest41-21ksoftirqd/320:10:003
639999399,28cyclictest0-21swapper/221:25:332
6400993832,4cyclictest41-21ksoftirqd/300:18:353
6400993832,3cyclictest41-21ksoftirqd/322:44:593
6399993832,4cyclictest33-21ksoftirqd/223:38:462
6399993810,27cyclictest0-21swapper/219:48:342
6398993831,5cyclictest25-21ksoftirqd/120:25:001
6400993732,3cyclictest41-21ksoftirqd/322:40:003
6400993732,3cyclictest41-21ksoftirqd/320:30:003
6400993732,3cyclictest41-21ksoftirqd/319:35:013
6400993731,3cyclictest41-21ksoftirqd/320:45:113
6399993733,3cyclictest33-21ksoftirqd/223:25:012
639999370,36cyclictest0-21swapper/222:50:242
6400993631,3cyclictest41-21ksoftirqd/322:45:173
6400993631,3cyclictest41-21ksoftirqd/300:25:003
6400993630,4cyclictest41-21ksoftirqd/321:53:293
6400993630,4cyclictest41-21ksoftirqd/321:16:343
6400993630,4cyclictest41-21ksoftirqd/319:35:493
6400993630,4cyclictest41-21ksoftirqd/300:14:183
6400993629,4cyclictest41-21ksoftirqd/322:20:113
6400993628,5cyclictest41-21ksoftirqd/322:20:003
6399993631,3cyclictest33-21ksoftirqd/221:04:372
6399993630,4cyclictest33-21ksoftirqd/223:11:022
6399993630,4cyclictest33-21ksoftirqd/223:09:142
6399993630,4cyclictest33-21ksoftirqd/200:15:092
6399993628,5cyclictest33-21ksoftirqd/222:20:102
6399993625,9cyclictest33-21ksoftirqd/222:25:172
6399993625,9cyclictest33-21ksoftirqd/222:25:172
6398993629,5cyclictest25-21ksoftirqd/121:15:111
6398993629,5cyclictest25-21ksoftirqd/121:07:451
6397993630,4cyclictest9-21ksoftirqd/022:59:460
6397993630,4cyclictest9-21ksoftirqd/022:59:450
6397993629,4cyclictest9-21ksoftirqd/000:01:310
6400993530,3cyclictest41-21ksoftirqd/319:17:273
6400993529,4cyclictest41-21ksoftirqd/323:00:003
6400993529,4cyclictest41-21ksoftirqd/323:00:003
6400993529,4cyclictest41-21ksoftirqd/320:34:093
6399993530,3cyclictest33-21ksoftirqd/221:54:362
6399993529,4cyclictest33-21ksoftirqd/222:55:382
6399993529,4cyclictest33-21ksoftirqd/222:55:382
6399993529,4cyclictest33-21ksoftirqd/200:35:472
6399993528,4cyclictest33-21ksoftirqd/223:25:592
6399993528,4cyclictest33-21ksoftirqd/223:25:582
6399993528,4cyclictest33-21ksoftirqd/222:49:282
6399993528,4cyclictest33-21ksoftirqd/220:23:342
6399993528,4cyclictest33-21ksoftirqd/219:57:142
6398993530,3cyclictest25-21ksoftirqd/121:57:371
6398993529,4cyclictest25-21ksoftirqd/123:40:001
6398993529,4cyclictest25-21ksoftirqd/123:32:271
6398993529,4cyclictest25-21ksoftirqd/121:35:331
6398993529,4cyclictest25-21ksoftirqd/120:54:021
6398993529,4cyclictest25-21ksoftirqd/120:54:011
6398993529,4cyclictest25-21ksoftirqd/120:26:571
6398993529,3cyclictest25-21ksoftirqd/120:35:191
6400993429,3cyclictest41-21ksoftirqd/300:26:223
6400993429,3cyclictest41-21ksoftirqd/300:26:223
6400993428,4cyclictest41-21ksoftirqd/323:42:283
6400993428,4cyclictest41-21ksoftirqd/323:23:193
6400993428,4cyclictest41-21ksoftirqd/320:20:293
6400993428,3cyclictest41-21ksoftirqd/320:40:013
6400993427,4cyclictest41-21ksoftirqd/323:30:133
6400993426,6cyclictest41-21ksoftirqd/322:35:013
6399993430,3cyclictest33-21ksoftirqd/220:40:142
6399993429,3cyclictest33-21ksoftirqd/220:15:292
6399993429,3cyclictest33-21ksoftirqd/219:50:112
6399993429,3cyclictest33-21ksoftirqd/200:05:122
6399993428,4cyclictest33-21ksoftirqd/223:46:202
6399993428,4cyclictest33-21ksoftirqd/221:34:072
6399993428,4cyclictest33-21ksoftirqd/221:09:152
6399993427,4cyclictest33-21ksoftirqd/219:42:412
6398993429,3cyclictest25-21ksoftirqd/119:29:121
6398993429,3cyclictest25-21ksoftirqd/119:11:551
6398993428,4cyclictest25-21ksoftirqd/123:42:181
6398993428,4cyclictest25-21ksoftirqd/123:24:131
6398993428,4cyclictest25-21ksoftirqd/123:00:501
6398993428,4cyclictest25-21ksoftirqd/120:11:531
6398993428,4cyclictest25-21ksoftirqd/100:35:021
6398993428,4cyclictest25-21ksoftirqd/100:06:491
6398993428,3cyclictest25-21ksoftirqd/123:15:001
6397993429,3cyclictest9-21ksoftirqd/019:39:180
6397993428,4cyclictest9-21ksoftirqd/022:35:100
6397993428,4cyclictest9-21ksoftirqd/021:44:120
6397993428,4cyclictest9-21ksoftirqd/021:21:200
6397993428,4cyclictest9-21ksoftirqd/021:21:200
6397993428,4cyclictest9-21ksoftirqd/019:49:100
6397993428,4cyclictest9-21ksoftirqd/019:14:200
6397993428,4cyclictest9-21ksoftirqd/000:39:500
6397993428,3cyclictest18181-21cron20:39:590
138491340,0ptp4l401ktimersoftd/321:35:243
6400993329,2cyclictest41-21ksoftirqd/321:09:593
6400993328,3cyclictest41-21ksoftirqd/323:05:243
6400993328,3cyclictest41-21ksoftirqd/322:00:143
6400993328,3cyclictest41-21ksoftirqd/319:40:203
6400993327,4cyclictest41-21ksoftirqd/323:14:003
6400993327,4cyclictest41-21ksoftirqd/323:00:133
6400993327,4cyclictest41-21ksoftirqd/322:25:073
6400993327,4cyclictest41-21ksoftirqd/322:25:063
6400993327,4cyclictest41-21ksoftirqd/320:16:563
6400993327,3cyclictest41-21ksoftirqd/319:45:113
6399993327,4cyclictest33-21ksoftirqd/221:15:282
6399993327,3cyclictest33-21ksoftirqd/223:00:112
6399993327,3cyclictest33-21ksoftirqd/219:17:392
6399993326,4cyclictest33-21ksoftirqd/220:27:152
6399993326,4cyclictest33-21ksoftirqd/220:01:462
6398993328,3cyclictest25-21ksoftirqd/123:57:461
6398993328,3cyclictest25-21ksoftirqd/123:57:461
6398993328,3cyclictest25-21ksoftirqd/123:50:201
6398993328,3cyclictest25-21ksoftirqd/122:55:111
6398993328,3cyclictest25-21ksoftirqd/122:55:111
6398993328,3cyclictest25-21ksoftirqd/122:15:321
6398993328,3cyclictest25-21ksoftirqd/119:25:011
6398993327,4cyclictest25-21ksoftirqd/122:53:001
6398993327,4cyclictest25-21ksoftirqd/121:51:471
6398993327,4cyclictest25-21ksoftirqd/120:58:421
6398993327,4cyclictest25-21ksoftirqd/120:32:101
6397993328,3cyclictest9-21ksoftirqd/023:46:440
6397993328,3cyclictest9-21ksoftirqd/023:38:080
6397993328,3cyclictest9-21ksoftirqd/023:02:260
6397993328,3cyclictest9-21ksoftirqd/022:48:540
6397993327,4cyclictest9-21ksoftirqd/023:43:580
6397993327,4cyclictest9-21ksoftirqd/023:25:530
6397993327,4cyclictest9-21ksoftirqd/023:25:530
6397993327,4cyclictest9-21ksoftirqd/023:06:390
6397993327,4cyclictest9-21ksoftirqd/022:50:590
6397993327,4cyclictest9-21ksoftirqd/022:24:300
6397993327,4cyclictest9-21ksoftirqd/021:45:390
6397993327,4cyclictest9-21ksoftirqd/021:36:130
6397993327,4cyclictest9-21ksoftirqd/020:22:070
6397993327,4cyclictest9-21ksoftirqd/019:21:300
6397993327,4cyclictest9-21ksoftirqd/019:16:560
6397993327,4cyclictest9-21ksoftirqd/000:33:120
6397993314,3cyclictest943-21dump-pmu-power22:14:590
6400993227,3cyclictest41-21ksoftirqd/322:10:273
6400993227,3cyclictest41-21ksoftirqd/321:55:223
6400993227,3cyclictest41-21ksoftirqd/300:30:123
6400993226,4cyclictest41-21ksoftirqd/320:51:273
6400993226,4cyclictest41-21ksoftirqd/320:51:263
6400993226,4cyclictest41-21ksoftirqd/319:55:343
6399993227,3cyclictest33-21ksoftirqd/219:29:452
6399993227,3cyclictest33-21ksoftirqd/200:30:482
6399993226,4cyclictest33-21ksoftirqd/223:17:122
6399993226,4cyclictest33-21ksoftirqd/220:59:002
6399993226,4cyclictest33-21ksoftirqd/220:54:062
6399993226,4cyclictest33-21ksoftirqd/220:54:062
6399993226,4cyclictest33-21ksoftirqd/220:05:402
6399993226,4cyclictest33-21ksoftirqd/219:24:112
6399993226,4cyclictest33-21ksoftirqd/200:22:472
6399993225,4cyclictest33-21ksoftirqd/221:35:072
6398993228,3cyclictest25-21ksoftirqd/122:47:361
6398993227,3cyclictest25-21ksoftirqd/122:38:121
6398993227,3cyclictest25-21ksoftirqd/100:25:171
6398993227,3cyclictest25-21ksoftirqd/100:25:171
6398993226,4cyclictest25-21ksoftirqd/123:26:101
6398993226,4cyclictest25-21ksoftirqd/123:26:101
6398993226,4cyclictest25-21ksoftirqd/122:31:471
6398993226,4cyclictest25-21ksoftirqd/122:23:431
6398993226,4cyclictest25-21ksoftirqd/120:41:221
6398993225,5cyclictest25-21ksoftirqd/119:34:301
6397993227,3cyclictest9-21ksoftirqd/023:50:560
6397993227,3cyclictest9-21ksoftirqd/022:28:150
6397993227,3cyclictest9-21ksoftirqd/022:28:150
6397993227,3cyclictest9-21ksoftirqd/021:50:350
6397993227,3cyclictest9-21ksoftirqd/019:56:160
6397993227,3cyclictest9-21ksoftirqd/019:32:580
6397993226,4cyclictest9-21ksoftirqd/021:18:350
6397993226,4cyclictest9-21ksoftirqd/021:10:340
6397993226,4cyclictest9-21ksoftirqd/020:08:590
6397993226,4cyclictest9-21ksoftirqd/019:44:070
6397993212,3cyclictest32481-21ptp4l20:00:240
6397993211,3cyclictest29005-21expr22:05:140
6400993126,3cyclictest41-21ksoftirqd/323:15:123
6400993126,3cyclictest41-21ksoftirqd/321:25:013
6400993126,3cyclictest41-21ksoftirqd/321:25:013
6400993125,4cyclictest41-21ksoftirqd/321:48:393
6400993125,4cyclictest41-21ksoftirqd/321:25:403
6400993124,5cyclictest41-21ksoftirqd/319:50:043
6399993127,3cyclictest33-21ksoftirqd/219:35:112
6399993126,3cyclictest33-21ksoftirqd/222:40:002
6399993126,3cyclictest33-21ksoftirqd/222:00:492
6399993126,3cyclictest33-21ksoftirqd/221:12:192
6399993126,3cyclictest33-21ksoftirqd/200:00:302
6399993125,4cyclictest33-21ksoftirqd/223:44:322
6399993125,4cyclictest33-21ksoftirqd/200:28:532
6399993125,4cyclictest33-21ksoftirqd/200:28:532
6399993124,4cyclictest33-21ksoftirqd/223:59:482
6399993124,4cyclictest33-21ksoftirqd/223:59:482
6398993126,3cyclictest25-21ksoftirqd/120:20:001
6398993125,4cyclictest25-21ksoftirqd/123:18:551
6398993125,4cyclictest25-21ksoftirqd/100:32:171
6398993125,4cyclictest25-21ksoftirqd/100:23:101
6398993125,4cyclictest25-21ksoftirqd/100:12:511
6398993125,4cyclictest25-21ksoftirqd/100:00:081
6398993124,4cyclictest25-21ksoftirqd/119:47:531
6398993123,5cyclictest25-21ksoftirqd/123:10:001
6398993123,4cyclictest25-21ksoftirqd/120:05:161
6397993126,3cyclictest9-21ksoftirqd/023:32:350
6397993126,3cyclictest9-21ksoftirqd/021:29:050
6397993126,3cyclictest9-21ksoftirqd/020:51:190
6397993126,3cyclictest9-21ksoftirqd/020:51:190
6397993126,3cyclictest9-21ksoftirqd/020:14:080
6397993126,3cyclictest9-21ksoftirqd/019:25:420
6397993125,4cyclictest9-21ksoftirqd/023:57:060
6397993125,4cyclictest9-21ksoftirqd/023:57:060
6397993125,4cyclictest9-21ksoftirqd/022:44:280
6397993125,4cyclictest9-21ksoftirqd/022:30:360
6397993125,4cyclictest9-21ksoftirqd/020:46:090
6397993124,4cyclictest9-21ksoftirqd/000:27:060
6397993124,4cyclictest9-21ksoftirqd/000:27:060
6397993110,3cyclictest30118-21sed23:10:240
138491310,0ptp4l401ktimersoftd/320:57:563
138491310,0ptp4l401ktimersoftd/320:42:413
6400993025,3cyclictest41-21ksoftirqd/323:40:013
6399993025,3cyclictest33-21ksoftirqd/223:53:592
6399993025,3cyclictest33-21ksoftirqd/221:45:352
6399993024,4cyclictest33-21ksoftirqd/220:30:512
6398993025,3cyclictest25-21ksoftirqd/121:25:171
6398993025,3cyclictest25-21ksoftirqd/119:41:591
6398993024,4cyclictest25-21ksoftirqd/122:42:371
6398993024,4cyclictest25-21ksoftirqd/122:11:151
6398993024,4cyclictest25-21ksoftirqd/121:22:421
6398993024,4cyclictest25-21ksoftirqd/121:22:421
6398993024,4cyclictest25-21ksoftirqd/121:14:511
6398993024,4cyclictest25-21ksoftirqd/121:00:111
639799309,3cyclictest6885-21sed20:15:190
6397993025,3cyclictest9-21ksoftirqd/019:51:320
6397993024,4cyclictest9-21ksoftirqd/023:18:340
6397993024,4cyclictest9-21ksoftirqd/000:12:420
6397993013,3cyclictest15364-21vmstat20:30:290
6397993010,3cyclictest13123-21seq21:34:120
6400992924,3cyclictest41-21ksoftirqd/323:45:473
6400992923,4cyclictest41-21ksoftirqd/320:13:473
6399992924,3cyclictest33-21ksoftirqd/219:31:422
6399992924,2cyclictest33-21ksoftirqd/222:00:002
6399992923,4cyclictest33-21ksoftirqd/222:31:342
6399992923,3cyclictest33-21ksoftirqd/220:14:182
6399992922,4cyclictest33-21ksoftirqd/221:21:022
6399992922,4cyclictest33-21ksoftirqd/221:21:022
6398992924,3cyclictest25-21ksoftirqd/122:05:301
6397992924,3cyclictest9-21ksoftirqd/022:15:090
6397992923,4cyclictest9-21ksoftirqd/022:03:080
6397992923,4cyclictest9-21ksoftirqd/000:05:280
6400992823,3cyclictest41-21ksoftirqd/321:10:173
6400992822,4cyclictest41-21ksoftirqd/322:54:223
6399992823,3cyclictest33-21ksoftirqd/222:42:282
6399992823,3cyclictest33-21ksoftirqd/220:46:552
6399992823,3cyclictest33-21ksoftirqd/220:38:122
6399992822,4cyclictest33-21ksoftirqd/222:17:552
6399992822,4cyclictest33-21ksoftirqd/222:07:472
6399992822,3cyclictest33-21ksoftirqd/221:40:142
6399992821,4cyclictest33-21ksoftirqd/223:30:512
6398992823,3cyclictest25-21ksoftirqd/123:48:171
6398992823,3cyclictest25-21ksoftirqd/122:03:451
6398992823,3cyclictest25-21ksoftirqd/119:35:231
6398992823,3cyclictest25-21ksoftirqd/100:15:391
6400992722,3cyclictest41-21ksoftirqd/323:53:053
6400992721,4cyclictest41-21ksoftirqd/322:07:403
6398992722,3cyclictest25-21ksoftirqd/121:46:281
6398992722,3cyclictest25-21ksoftirqd/121:33:191
6397992721,4cyclictest9-21ksoftirqd/020:44:210
6399992620,4cyclictest33-21ksoftirqd/222:14:102
6398992622,3cyclictest25-21ksoftirqd/119:15:261
6398992621,3cyclictest25-21ksoftirqd/119:52:061
6397992621,3cyclictest9-21ksoftirqd/021:58:150
6397992620,4cyclictest9-21ksoftirqd/000:20:180
6399992520,3cyclictest33-21ksoftirqd/200:10:132
6398992518,5cyclictest25-21ksoftirqd/122:27:001
6398992518,5cyclictest25-21ksoftirqd/122:27:001
6397992520,3cyclictest9-21ksoftirqd/021:02:470
6397992520,3cyclictest9-21ksoftirqd/020:56:170
6397992519,4cyclictest9-21ksoftirqd/023:24:440
6398992318,3cyclictest25-21ksoftirqd/119:55:121
6397992318,3cyclictest9-21ksoftirqd/000:17:000
6397992216,4cyclictest9-21ksoftirqd/020:26:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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