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2025-11-24 - 11:36
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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 Nov 24, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
443223040,7sleep10-21swapper/119:05:261
427791206169,25phc2sys0-21swapper/319:09:163
47872203169,23sleep00-21swapper/019:06:260
49892200168,21sleep20-21swapper/219:09:042
69121770,8sleep3535599cyclictest23:15:213
427291660,1ptp4l401ktimersoftd/321:50:243
123462570,6sleep1535399cyclictest20:25:221
222512550,1sleep20-21swapper/222:55:152
222512550,1sleep20-21swapper/222:55:152
5352995348,3cyclictest9-21ksoftirqd/023:55:000
274232520,2sleep00-21swapper/023:05:160
205412520,4sleep120543-21latency_hist19:40:011
427291460,1ptp4l401ktimersoftd/300:39:063
5352994337,3cyclictest9-21ksoftirqd/021:15:010
427291430,0ptp4l401ktimersoftd/323:45:013
427291430,0ptp4l401ktimersoftd/322:51:593
427291430,0ptp4l401ktimersoftd/321:19:533
427291430,0ptp4l401ktimersoftd/320:10:263
5352994236,4cyclictest9-21ksoftirqd/021:54:590
427291420,0ptp4l401ktimersoftd/322:20:243
427291420,0ptp4l401ktimersoftd/320:55:183
427291420,0ptp4l401ktimersoftd/319:39:083
427291420,0ptp4l401ktimersoftd/300:29:523
5353994112,27cyclictest1745-21kworker/1:223:51:271
5355994034,4cyclictest41-21ksoftirqd/321:34:193
5355994034,4cyclictest41-21ksoftirqd/321:34:193
5353994034,3cyclictest25-21ksoftirqd/123:41:591
5352994035,3cyclictest9-21ksoftirqd/022:55:000
5352994034,3cyclictest9-21ksoftirqd/000:00:000
427291400,1ptp4l401ktimersoftd/322:17:283
427291400,1ptp4l401ktimersoftd/321:43:353
5355993933,4cyclictest41-21ksoftirqd/323:36:083
5355993933,4cyclictest41-21ksoftirqd/323:36:073
5355993933,4cyclictest41-21ksoftirqd/321:56:023
5355993933,4cyclictest41-21ksoftirqd/320:22:233
5355993933,4cyclictest41-21ksoftirqd/319:11:543
5355993927,10cyclictest41-21ksoftirqd/319:16:513
5353993933,4cyclictest25-21ksoftirqd/122:45:471
5353993933,4cyclictest25-21ksoftirqd/122:26:251
5353993933,4cyclictest25-21ksoftirqd/100:21:021
5352993935,2cyclictest9-21ksoftirqd/020:05:000
5352993934,3cyclictest9-21ksoftirqd/022:35:000
5352993933,4cyclictest9-21ksoftirqd/022:23:590
5355993833,3cyclictest41-21ksoftirqd/300:24:443
5355993832,4cyclictest41-21ksoftirqd/323:22:553
5355993832,4cyclictest41-21ksoftirqd/323:13:413
5355993832,4cyclictest41-21ksoftirqd/321:07:273
5355993832,4cyclictest41-21ksoftirqd/300:33:253
5355993831,5cyclictest41-21ksoftirqd/322:28:233
5355993831,4cyclictest41-21ksoftirqd/322:59:523
5355993831,4cyclictest41-21ksoftirqd/322:59:523
5353993832,4cyclictest25-21ksoftirqd/121:59:571
5353993831,4cyclictest25-21ksoftirqd/122:39:461
5352993833,3cyclictest9-21ksoftirqd/022:44:590
5352993833,3cyclictest9-21ksoftirqd/022:20:000
5352993832,4cyclictest9-21ksoftirqd/023:21:290
5352993832,4cyclictest9-21ksoftirqd/022:07:230
5352993832,4cyclictest9-21ksoftirqd/020:09:040
5352993832,3cyclictest9-21ksoftirqd/020:20:000
5352993832,3cyclictest9-21ksoftirqd/000:25:010
5355993732,3cyclictest41-21ksoftirqd/320:27:043
5355993732,3cyclictest41-21ksoftirqd/320:04:073
5355993732,3cyclictest41-21ksoftirqd/319:55:003
5355993731,4cyclictest41-21ksoftirqd/322:12:033
5355993731,4cyclictest41-21ksoftirqd/321:02:353
5355993731,4cyclictest41-21ksoftirqd/321:02:353
5355993731,4cyclictest41-21ksoftirqd/320:32:143
5355993731,4cyclictest41-21ksoftirqd/319:42:433
5355993731,3cyclictest41-21ksoftirqd/319:55:043
5355993730,4cyclictest41-21ksoftirqd/321:37:053
5354993732,3cyclictest33-21ksoftirqd/219:49:222
5354993731,4cyclictest33-21ksoftirqd/219:27:502
5354993731,4cyclictest33-21ksoftirqd/200:26:062
5354993731,4cyclictest33-21ksoftirqd/200:06:472
5354993730,4cyclictest33-21ksoftirqd/219:15:002
5353993732,3cyclictest25-21ksoftirqd/122:07:211
5353993731,4cyclictest25-21ksoftirqd/122:59:501
5353993731,4cyclictest25-21ksoftirqd/122:59:501
5353993731,4cyclictest25-21ksoftirqd/121:52:071
5353993731,4cyclictest25-21ksoftirqd/121:03:091
5353993731,4cyclictest25-21ksoftirqd/121:03:091
5353993731,3cyclictest25-21ksoftirqd/122:22:591
5353993731,3cyclictest25-21ksoftirqd/122:18:551
5353993731,3cyclictest25-21ksoftirqd/119:22:511
5353993731,3cyclictest25-21ksoftirqd/119:22:511
5353993730,4cyclictest25-21ksoftirqd/120:00:111
5353993730,4cyclictest25-21ksoftirqd/100:25:521
5352993732,3cyclictest9-21ksoftirqd/023:30:000
5352993731,4cyclictest9-21ksoftirqd/023:46:580
5352993731,4cyclictest9-21ksoftirqd/021:15:040
5352993731,3cyclictest9-21ksoftirqd/000:30:000
5352993730,4cyclictest9-21ksoftirqd/022:00:510
5352993730,4cyclictest9-21ksoftirqd/021:49:090
5355993632,2cyclictest14158-21kworker/3:020:50:203
5355993631,3cyclictest41-21ksoftirqd/322:44:553
5355993630,4cyclictest41-21ksoftirqd/323:58:063
5355993630,4cyclictest41-21ksoftirqd/323:27:173
5355993630,4cyclictest41-21ksoftirqd/322:49:223
5355993629,5cyclictest41-21ksoftirqd/319:46:453
5354993631,3cyclictest33-21ksoftirqd/222:31:092
5354993631,3cyclictest33-21ksoftirqd/220:56:312
5354993631,3cyclictest33-21ksoftirqd/220:09:502
5354993630,4cyclictest33-21ksoftirqd/221:58:422
5354993630,4cyclictest33-21ksoftirqd/221:27:132
5354993630,4cyclictest33-21ksoftirqd/221:20:582
5354993630,4cyclictest33-21ksoftirqd/219:33:282
5354993630,4cyclictest33-21ksoftirqd/219:21:362
5354993630,4cyclictest33-21ksoftirqd/219:21:362
5353993631,3cyclictest25-21ksoftirqd/122:42:451
5353993631,3cyclictest25-21ksoftirqd/121:44:491
5353993631,3cyclictest25-21ksoftirqd/100:39:531
5353993630,4cyclictest25-21ksoftirqd/121:46:341
5353993630,4cyclictest25-21ksoftirqd/121:06:411
5353993629,4cyclictest25-21ksoftirqd/123:08:091
5353993629,4cyclictest25-21ksoftirqd/123:01:151
535399362,2cyclictest121rcu_preempt20:48:561
535399360,34cyclictest0-21swapper/100:15:461
5352993630,4cyclictest9-21ksoftirqd/021:01:560
5352993630,4cyclictest9-21ksoftirqd/021:01:550
5352993630,4cyclictest9-21ksoftirqd/020:54:050
5352993630,4cyclictest9-21ksoftirqd/020:31:060
5352993630,4cyclictest9-21ksoftirqd/020:25:040
5352993630,4cyclictest9-21ksoftirqd/020:22:440
5352993630,4cyclictest9-21ksoftirqd/000:33:130
5352993629,5cyclictest9-21ksoftirqd/019:46:010
5352993629,4cyclictest9-21ksoftirqd/000:18:210
535299361,2cyclictest121rcu_preempt19:37:470
5355993530,3cyclictest41-21ksoftirqd/300:03:393
5355993529,4cyclictest41-21ksoftirqd/321:29:393
5355993529,4cyclictest41-21ksoftirqd/320:43:003
5355993529,4cyclictest41-21ksoftirqd/300:15:003
5355993529,3cyclictest41-21ksoftirqd/320:16:143
5355993528,4cyclictest41-21ksoftirqd/323:04:343
5354993530,3cyclictest33-21ksoftirqd/223:44:472
5354993530,3cyclictest33-21ksoftirqd/221:39:422
5354993530,3cyclictest33-21ksoftirqd/219:44:222
5354993529,4cyclictest33-21ksoftirqd/223:47:462
5354993529,4cyclictest33-21ksoftirqd/222:08:492
5354993529,3cyclictest33-21ksoftirqd/223:58:202
5354993529,3cyclictest33-21ksoftirqd/223:07:242
5354993529,3cyclictest33-21ksoftirqd/221:15:012
5354993528,4cyclictest33-21ksoftirqd/223:51:042
5353993530,3cyclictest25-21ksoftirqd/122:00:501
5353993530,3cyclictest25-21ksoftirqd/121:27:591
5353993530,3cyclictest25-21ksoftirqd/120:58:041
5353993529,4cyclictest25-21ksoftirqd/123:46:291
5353993529,4cyclictest25-21ksoftirqd/121:10:341
5353993529,4cyclictest25-21ksoftirqd/120:41:141
5353993529,4cyclictest25-21ksoftirqd/119:55:411
5353993529,4cyclictest25-21ksoftirqd/119:32:261
5353993529,4cyclictest25-21ksoftirqd/100:03:371
5353993528,4cyclictest25-21ksoftirqd/120:23:131
5352993530,3cyclictest9-21ksoftirqd/020:43:360
5352993530,3cyclictest9-21ksoftirqd/020:40:010
5352993530,3cyclictest9-21ksoftirqd/019:30:190
5352993530,3cyclictest9-21ksoftirqd/000:03:300
5352993529,4cyclictest9-21ksoftirqd/023:43:300
5352993529,4cyclictest9-21ksoftirqd/022:56:500
5352993529,4cyclictest9-21ksoftirqd/022:56:500
5352993529,4cyclictest9-21ksoftirqd/000:11:190
5352993529,3cyclictest9-21ksoftirqd/021:05:200
5352993528,4cyclictest9-21ksoftirqd/000:08:300
36998350,2rtkit-daemon368-21rtkit-daemon23:57:131
5355993429,3cyclictest41-21ksoftirqd/321:21:303
5355993428,4cyclictest41-21ksoftirqd/322:37:223
5355993428,4cyclictest41-21ksoftirqd/320:48:073
5354993429,3cyclictest33-21ksoftirqd/222:40:422
5354993429,3cyclictest33-21ksoftirqd/200:31:532
5354993428,4cyclictest33-21ksoftirqd/223:40:002
5354993428,4cyclictest33-21ksoftirqd/223:40:002
5354993428,4cyclictest33-21ksoftirqd/221:51:362
5354993428,4cyclictest33-21ksoftirqd/221:46:142
5354993428,4cyclictest33-21ksoftirqd/221:07:472
5353993428,4cyclictest25-21ksoftirqd/119:14:171
5353993428,4cyclictest25-21ksoftirqd/100:34:341
5352993431,2cyclictest111rcuc/019:25:210
5352993429,3cyclictest9-21ksoftirqd/022:45:450
5352993429,3cyclictest9-21ksoftirqd/021:55:220
5352993428,4cyclictest9-21ksoftirqd/022:13:200
5352993428,4cyclictest9-21ksoftirqd/021:42:120
5352993428,3cyclictest9-21ksoftirqd/023:15:180
5352993427,4cyclictest9-21ksoftirqd/020:10:080
427291340,0ptp4l401ktimersoftd/300:05:303
5355993328,3cyclictest41-21ksoftirqd/319:23:333
5355993328,3cyclictest41-21ksoftirqd/319:23:323
5355993327,4cyclictest41-21ksoftirqd/323:46:033
5355993327,4cyclictest41-21ksoftirqd/323:09:593
5355993327,4cyclictest41-21ksoftirqd/322:02:383
5355993327,4cyclictest41-21ksoftirqd/321:48:123
5355993326,4cyclictest41-21ksoftirqd/322:30:053
5354993328,3cyclictest33-21ksoftirqd/223:31:102
5354993328,3cyclictest33-21ksoftirqd/222:50:122
5354993327,4cyclictest33-21ksoftirqd/222:49:442
5354993327,4cyclictest33-21ksoftirqd/222:17:112
5354993327,4cyclictest33-21ksoftirqd/221:44:012
5354993327,4cyclictest33-21ksoftirqd/220:31:492
5354993327,4cyclictest33-21ksoftirqd/219:50:452
5354993327,4cyclictest33-21ksoftirqd/200:15:142
5354993326,4cyclictest33-21ksoftirqd/200:10:562
5353993328,3cyclictest25-21ksoftirqd/123:32:541
5353993327,4cyclictest25-21ksoftirqd/120:38:261
5353993327,4cyclictest25-21ksoftirqd/120:31:161
5353993327,4cyclictest25-21ksoftirqd/119:43:381
5352993328,3cyclictest9-21ksoftirqd/023:13:260
5352993328,3cyclictest9-21ksoftirqd/022:26:550
5352993328,3cyclictest9-21ksoftirqd/021:25:120
5352993328,3cyclictest9-21ksoftirqd/021:20:110
5352993328,3cyclictest9-21ksoftirqd/020:55:180
5352993327,4cyclictest9-21ksoftirqd/021:36:260
5352993327,4cyclictest9-21ksoftirqd/000:39:070
5355993227,3cyclictest41-21ksoftirqd/322:05:533
5355993227,3cyclictest41-21ksoftirqd/319:32:043
5354993227,3cyclictest33-21ksoftirqd/221:02:362
5354993227,3cyclictest33-21ksoftirqd/221:02:352
5354993227,3cyclictest33-21ksoftirqd/220:11:252
5354993227,3cyclictest24335-21kworker/2:020:50:202
5354993226,4cyclictest33-21ksoftirqd/220:39:352
5354993226,3cyclictest33-21ksoftirqd/200:01:412
5353993226,4cyclictest25-21ksoftirqd/121:32:331
5353993226,4cyclictest25-21ksoftirqd/121:32:331
5353993226,4cyclictest25-21ksoftirqd/120:51:301
5353993226,4cyclictest25-21ksoftirqd/100:06:311
5353993226,3cyclictest25-21ksoftirqd/100:13:451
5353993225,5cyclictest25-21ksoftirqd/122:33:191
5352993228,3cyclictest9-21ksoftirqd/019:20:290
5352993228,3cyclictest9-21ksoftirqd/019:20:290
5352993227,3cyclictest9-21ksoftirqd/021:33:570
5352993227,3cyclictest9-21ksoftirqd/021:33:570
5352993227,3cyclictest9-21ksoftirqd/019:17:250
5355993126,3cyclictest41-21ksoftirqd/320:36:593
5355993126,3cyclictest41-21ksoftirqd/319:25:063
5355993125,4cyclictest41-21ksoftirqd/323:33:423
5354993126,3cyclictest33-21ksoftirqd/222:13:022
5354993126,3cyclictest33-21ksoftirqd/220:19:092
5354993126,3cyclictest33-21ksoftirqd/219:16:482
5354993125,4cyclictest33-21ksoftirqd/222:22:172
5354993125,4cyclictest33-21ksoftirqd/222:04:362
5354993125,4cyclictest33-21ksoftirqd/221:16:492
5354993125,4cyclictest33-21ksoftirqd/220:49:502
5354993125,3cyclictest33-21ksoftirqd/220:29:372
5353993126,3cyclictest25-21ksoftirqd/123:35:381
5353993126,3cyclictest25-21ksoftirqd/123:35:371
5353993126,3cyclictest25-21ksoftirqd/121:21:381
5353993125,4cyclictest25-21ksoftirqd/123:23:291
5353993125,4cyclictest25-21ksoftirqd/122:52:521
5353993125,4cyclictest25-21ksoftirqd/119:51:161
5353993125,4cyclictest25-21ksoftirqd/119:17:221
5352993126,3cyclictest9-21ksoftirqd/019:52:590
5352993126,3cyclictest9-21ksoftirqd/019:14:590
5352993124,4cyclictest9-21ksoftirqd/019:55:040
5355993025,3cyclictest41-21ksoftirqd/300:15:143
5354993025,3cyclictest33-21ksoftirqd/200:38:072
5354993025,3cyclictest33-21ksoftirqd/200:21:202
5354993024,4cyclictest33-21ksoftirqd/223:29:332
5353993024,4cyclictest25-21ksoftirqd/123:19:241
5353993024,4cyclictest25-21ksoftirqd/120:07:051
5352993025,3cyclictest9-21ksoftirqd/023:02:510
5352993024,3cyclictest9-21ksoftirqd/019:45:010
427291300,24ptp4l72192irq/125-enp1s0-20:08:133
5355992923,4cyclictest41-21ksoftirqd/323:52:443
5354992924,3cyclictest33-21ksoftirqd/223:19:362
5354992924,3cyclictest33-21ksoftirqd/220:40:422
5354992924,3cyclictest33-21ksoftirqd/219:35:462
5354992923,3cyclictest33-21ksoftirqd/223:13:512
5353992924,3cyclictest25-21ksoftirqd/123:28:021
5353992924,3cyclictest25-21ksoftirqd/123:12:081
5353992924,3cyclictest25-21ksoftirqd/119:45:411
5353992923,4cyclictest25-21ksoftirqd/119:25:561
5352992924,3cyclictest9-21ksoftirqd/023:30:200
5352992923,4cyclictest9-21ksoftirqd/023:38:460
5352992923,4cyclictest9-21ksoftirqd/023:38:450
5352992923,4cyclictest9-21ksoftirqd/020:45:180
5352992923,3cyclictest9-21ksoftirqd/022:35:210
5355992822,4cyclictest41-21ksoftirqd/321:10:093
5354992823,3cyclictest33-21ksoftirqd/223:24:452
5354992823,3cyclictest33-21ksoftirqd/223:03:172
5354992823,3cyclictest33-21ksoftirqd/222:27:582
5354992823,3cyclictest33-21ksoftirqd/220:01:532
5354992822,4cyclictest33-21ksoftirqd/222:36:092
535399287,19cyclictest0-21swapper/120:10:381
5353992824,3cyclictest25-21ksoftirqd/121:20:001
5354992721,4cyclictest33-21ksoftirqd/219:55:052
5353992721,4cyclictest25-21ksoftirqd/120:18:151
5354992620,4cyclictest33-21ksoftirqd/221:31:022
5354992620,4cyclictest33-21ksoftirqd/221:31:022
535399260,2cyclictest121rcu_preempt22:13:011
5354992519,4cyclictest33-21ksoftirqd/220:21:322
5353992418,4cyclictest25-21ksoftirqd/121:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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