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2025-07-12 - 12:50
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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 Sat Jul 12, 2025 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134791205169,24phc2sys0-21swapper/319:08:513
41772203170,22sleep10-21swapper/119:09:101
40992202168,22sleep00-21swapper/019:08:080
40712202167,23sleep20-21swapper/219:07:462
1309521420,6sleep3453899cyclictest21:35:223
100242600,1sleep30-21swapper/319:20:143
134991550,1ptp4l401ktimersoftd/322:03:443
29222520,2sleep00-21swapper/020:10:180
4535995044,3cyclictest1996-21turbostat20:10:000
308952460,1sleep30-21swapper/321:05:253
134991460,38ptp4l0-21swapper/319:10:003
134991430,0ptp4l401ktimersoftd/321:15:013
134991430,0ptp4l401ktimersoftd/300:04:393
130691420,7getstats453899cyclictest20:19:553
4537994136,3cyclictest33-21ksoftirqd/221:20:002
134991410,0ptp4l401ktimersoftd/320:34:373
4538994035,3cyclictest41-21ksoftirqd/322:40:013
4537994036,3cyclictest33-21ksoftirqd/221:40:012
130691400,2getstats0-21swapper/323:55:183
4538993934,3cyclictest41-21ksoftirqd/319:40:003
4537993936,2cyclictest33-21ksoftirqd/221:34:592
4537993935,3cyclictest33-21ksoftirqd/223:15:002
4537993934,3cyclictest33-21ksoftirqd/220:20:002
4537993925,11cyclictest33-21ksoftirqd/221:55:232
453799390,5cyclictest23076-21sed20:50:212
134991390,1ptp4l401ktimersoftd/323:00:113
134991390,0ptp4l401ktimersoftd/321:34:133
4538993833,3cyclictest41-21ksoftirqd/323:10:003
4538993833,2cyclictest41-21ksoftirqd/300:15:003
4538993830,5cyclictest41-21ksoftirqd/323:51:063
4538993830,5cyclictest41-21ksoftirqd/323:51:063
4537993832,2cyclictest33-21ksoftirqd/222:15:002
4538993734,2cyclictest41-21ksoftirqd/323:35:013
4538993731,4cyclictest41-21ksoftirqd/323:27:473
4538993731,4cyclictest41-21ksoftirqd/322:07:273
4537993731,3cyclictest33-21ksoftirqd/200:05:002
4537993731,3cyclictest16346-21cron23:54:592
4537993731,3cyclictest16346-21cron23:54:592
4537993726,10cyclictest33-21ksoftirqd/223:35:292
4537993723,12cyclictest33-21ksoftirqd/223:00:492
4536993731,4cyclictest25-21ksoftirqd/120:38:071
4536993731,4cyclictest25-21ksoftirqd/120:38:071
130691370,2getstats0-21swapper/320:09:553
4538993631,3cyclictest41-21ksoftirqd/322:48:393
4538993631,3cyclictest41-21ksoftirqd/320:05:003
4538993631,3cyclictest41-21ksoftirqd/319:45:223
4538993631,2cyclictest41-21ksoftirqd/321:30:003
4538993630,4cyclictest41-21ksoftirqd/323:20:523
4538993629,4cyclictest41-21ksoftirqd/320:13:463
4538993622,5cyclictest41-21ksoftirqd/320:50:213
4537993631,3cyclictest33-21ksoftirqd/200:35:152
4537993631,2cyclictest33-21ksoftirqd/219:30:002
4537993630,4cyclictest33-21ksoftirqd/222:51:352
4537993630,3cyclictest33-21ksoftirqd/219:40:232
4537993625,9cyclictest33-21ksoftirqd/223:30:252
4536993630,4cyclictest25-21ksoftirqd/123:52:281
4536993630,4cyclictest25-21ksoftirqd/123:52:281
4536993630,4cyclictest25-21ksoftirqd/123:05:021
4536993630,4cyclictest25-21ksoftirqd/123:01:291
4536993630,4cyclictest25-21ksoftirqd/121:33:111
4536993630,4cyclictest25-21ksoftirqd/120:23:191
4536993629,4cyclictest25-21ksoftirqd/121:05:021
4535993629,4cyclictest9-21ksoftirqd/022:19:240
4535993629,4cyclictest9-21ksoftirqd/019:15:060
4538993531,3cyclictest41-21ksoftirqd/320:55:193
4538993530,3cyclictest41-21ksoftirqd/322:33:153
4538993530,3cyclictest41-21ksoftirqd/322:20:003
4538993530,3cyclictest41-21ksoftirqd/319:54:313
4538993530,3cyclictest41-21ksoftirqd/319:40:233
4538993530,3cyclictest41-21ksoftirqd/319:30:003
4538993530,2cyclictest41-21ksoftirqd/323:40:183
4538993529,4cyclictest41-21ksoftirqd/321:56:513
4538993529,4cyclictest41-21ksoftirqd/300:06:023
4537993530,3cyclictest33-21ksoftirqd/222:19:582
4537993530,3cyclictest33-21ksoftirqd/221:05:192
4537993530,3cyclictest33-21ksoftirqd/220:45:262
4537993530,3cyclictest33-21ksoftirqd/219:30:132
4537993529,3cyclictest33-21ksoftirqd/220:00:002
4537993528,4cyclictest33-21ksoftirqd/223:27:142
4536993529,4cyclictest25-21ksoftirqd/121:46:591
4536993529,4cyclictest25-21ksoftirqd/119:52:091
4536993529,4cyclictest25-21ksoftirqd/100:28:101
4536993529,3cyclictest25-21ksoftirqd/120:11:111
4536993528,4cyclictest25-21ksoftirqd/120:16:211
4535993529,4cyclictest9-21ksoftirqd/023:22:100
4535993529,4cyclictest9-21ksoftirqd/020:51:020
4535993529,4cyclictest9-21ksoftirqd/019:48:150
4535993529,4cyclictest9-21ksoftirqd/019:38:040
4538993429,3cyclictest41-21ksoftirqd/323:10:223
4538993429,3cyclictest41-21ksoftirqd/321:10:193
4538993429,3cyclictest41-21ksoftirqd/321:04:593
4538993429,3cyclictest41-21ksoftirqd/320:44:493
4538993428,4cyclictest41-21ksoftirqd/323:38:503
4538993428,4cyclictest41-21ksoftirqd/322:51:083
4538993428,4cyclictest41-21ksoftirqd/322:11:163
4538993428,4cyclictest41-21ksoftirqd/320:36:083
4538993428,4cyclictest41-21ksoftirqd/320:36:083
4538993427,4cyclictest41-21ksoftirqd/323:46:563
4538993422,10cyclictest41-21ksoftirqd/320:45:283
4537993430,3cyclictest33-21ksoftirqd/220:30:212
4537993429,3cyclictest33-21ksoftirqd/222:50:012
4537993429,3cyclictest33-21ksoftirqd/222:40:012
4537993429,3cyclictest33-21ksoftirqd/221:00:292
4537993429,3cyclictest33-21ksoftirqd/220:10:002
4537993429,3cyclictest33-21ksoftirqd/219:24:242
4537993428,4cyclictest33-21ksoftirqd/200:17:572
4537993428,3cyclictest33-21ksoftirqd/220:15:012
4537993427,4cyclictest33-21ksoftirqd/222:34:302
4536993430,3cyclictest25-21ksoftirqd/119:32:011
4536993429,3cyclictest25-21ksoftirqd/123:18:571
4536993429,3cyclictest25-21ksoftirqd/123:18:571
4536993429,3cyclictest25-21ksoftirqd/122:22:271
4536993429,3cyclictest25-21ksoftirqd/121:21:311
4536993429,3cyclictest25-21ksoftirqd/120:54:471
4536993429,3cyclictest25-21ksoftirqd/120:00:201
4536993428,4cyclictest25-21ksoftirqd/122:07:531
4536993428,4cyclictest25-21ksoftirqd/100:36:401
4535993428,4cyclictest9-21ksoftirqd/023:58:040
4535993428,4cyclictest9-21ksoftirqd/022:46:400
4535993428,4cyclictest9-21ksoftirqd/022:39:140
130691340,3getstats14258-21turbostat21:44:563
4538993330,2cyclictest19575-21grep21:50:173
4538993328,3cyclictest41-21ksoftirqd/319:31:233
4538993328,3cyclictest41-21ksoftirqd/300:23:343
4538993327,4cyclictest41-21ksoftirqd/322:26:453
4538993327,4cyclictest41-21ksoftirqd/319:16:213
4538993327,4cyclictest41-21ksoftirqd/300:17:573
453799335,8cyclictest33-21ksoftirqd/220:40:002
453799335,8cyclictest33-21ksoftirqd/220:39:592
453799333,2cyclictest121rcu_preempt00:10:002
4537993329,2cyclictest13970-21latency_hist23:49:592
4537993328,3cyclictest33-21ksoftirqd/221:50:002
4537993328,3cyclictest33-21ksoftirqd/219:40:002
4537993327,4cyclictest33-21ksoftirqd/219:18:572
4537993326,5cyclictest33-21ksoftirqd/222:25:062
4536993329,3cyclictest25-21ksoftirqd/119:21:311
4536993328,3cyclictest25-21ksoftirqd/123:47:471
4536993328,3cyclictest25-21ksoftirqd/121:55:141
4536993327,4cyclictest25-21ksoftirqd/123:59:061
4536993327,4cyclictest25-21ksoftirqd/123:40:331
4536993327,4cyclictest25-21ksoftirqd/123:34:311
4536993327,4cyclictest25-21ksoftirqd/123:25:031
4536993327,4cyclictest25-21ksoftirqd/123:14:531
4536993327,4cyclictest25-21ksoftirqd/122:00:061
4536993327,4cyclictest25-21ksoftirqd/120:45:331
4536993327,4cyclictest25-21ksoftirqd/120:40:081
4536993327,4cyclictest25-21ksoftirqd/119:26:421
4535993327,4cyclictest9-21ksoftirqd/023:54:190
4535993327,4cyclictest9-21ksoftirqd/023:54:190
4535993327,4cyclictest9-21ksoftirqd/023:42:110
4535993327,4cyclictest9-21ksoftirqd/023:16:530
4535993327,4cyclictest9-21ksoftirqd/023:16:530
4535993327,4cyclictest9-21ksoftirqd/022:06:120
4535993327,4cyclictest9-21ksoftirqd/021:59:540
4535993327,4cyclictest9-21ksoftirqd/021:21:270
4535993327,4cyclictest9-21ksoftirqd/020:48:250
4535993327,4cyclictest9-21ksoftirqd/020:24:460
4535993327,4cyclictest9-21ksoftirqd/019:41:450
4535993327,4cyclictest9-21ksoftirqd/019:26:410
4538993227,3cyclictest41-21ksoftirqd/320:21:133
4538993227,3cyclictest41-21ksoftirqd/300:35:003
4537993228,2cyclictest311rcuc/222:20:222
4537993227,3cyclictest33-21ksoftirqd/223:40:172
4537993227,3cyclictest33-21ksoftirqd/222:00:152
4537993227,3cyclictest33-21ksoftirqd/220:25:002
4537993226,4cyclictest33-21ksoftirqd/221:53:502
4537993226,4cyclictest33-21ksoftirqd/221:45:002
4537993226,4cyclictest33-21ksoftirqd/219:46:092
4537993222,9cyclictest33-21ksoftirqd/223:15:262
4537993222,9cyclictest33-21ksoftirqd/223:15:262
4537993221,4cyclictest33-21ksoftirqd/221:10:252
4536993227,3cyclictest25-21ksoftirqd/122:43:271
4536993227,3cyclictest25-21ksoftirqd/121:40:111
4536993227,3cyclictest25-21ksoftirqd/120:58:561
4536993227,3cyclictest25-21ksoftirqd/119:20:001
4536993227,3cyclictest25-21ksoftirqd/100:07:451
4536993226,4cyclictest25-21ksoftirqd/123:36:391
4535993227,3cyclictest9-21ksoftirqd/020:04:240
4535993227,3cyclictest9-21ksoftirqd/019:30:180
4535993227,3cyclictest9-21ksoftirqd/000:09:070
4535993226,4cyclictest9-21ksoftirqd/022:59:590
4535993226,4cyclictest9-21ksoftirqd/021:00:080
4535993226,4cyclictest9-21ksoftirqd/020:59:320
4535993226,4cyclictest9-21ksoftirqd/020:41:230
4535993226,4cyclictest9-21ksoftirqd/019:55:330
4535993226,4cyclictest9-21ksoftirqd/019:52:290
4538993128,2cyclictest41-21ksoftirqd/322:55:153
4538993127,2cyclictest41-21ksoftirqd/321:20:263
4538993126,3cyclictest41-21ksoftirqd/322:45:003
4538993126,3cyclictest41-21ksoftirqd/321:45:193
4538993125,4cyclictest41-21ksoftirqd/300:37:433
4538993124,4cyclictest41-21ksoftirqd/322:21:233
4537993126,3cyclictest33-21ksoftirqd/220:40:212
4537993126,3cyclictest33-21ksoftirqd/219:52:472
4537993126,2cyclictest33-21ksoftirqd/220:00:202
4537993125,4cyclictest33-21ksoftirqd/200:11:382
4537993125,3cyclictest33-21ksoftirqd/223:55:142
4537993125,3cyclictest33-21ksoftirqd/200:30:152
4537993124,4cyclictest33-21ksoftirqd/223:20:522
4537993121,9cyclictest33-21ksoftirqd/223:05:122
4537993120,9cyclictest33-21ksoftirqd/221:25:262
4537993120,9cyclictest33-21ksoftirqd/200:20:252
4536993124,5cyclictest25-21ksoftirqd/120:08:501
4535993126,3cyclictest9-21ksoftirqd/023:11:280
4535993126,3cyclictest9-21ksoftirqd/022:26:170
4535993126,3cyclictest9-21ksoftirqd/021:14:530
4535993125,4cyclictest9-21ksoftirqd/022:52:500
4535993125,4cyclictest9-21ksoftirqd/021:48:460
4535993125,4cyclictest9-21ksoftirqd/021:32:290
4535993125,4cyclictest9-21ksoftirqd/019:11:420
4535993125,4cyclictest9-21ksoftirqd/000:23:560
4535993124,4cyclictest9-21ksoftirqd/022:22:160
4538993025,3cyclictest41-21ksoftirqd/319:55:013
4538993024,4cyclictest41-21ksoftirqd/320:26:213
4537993025,3cyclictest33-21ksoftirqd/222:05:202
4537993025,3cyclictest33-21ksoftirqd/221:00:002
4537993025,3cyclictest33-21ksoftirqd/219:15:002
4537993025,3cyclictest33-21ksoftirqd/200:25:152
4537993024,4cyclictest33-21ksoftirqd/222:56:362
4536993025,3cyclictest25-21ksoftirqd/122:25:021
4536993025,3cyclictest25-21ksoftirqd/121:51:161
4536993025,3cyclictest25-21ksoftirqd/121:28:251
4536993025,3cyclictest25-21ksoftirqd/120:34:131
4536993025,3cyclictest25-21ksoftirqd/119:57:081
4536993025,3cyclictest25-21ksoftirqd/119:13:171
4536993024,4cyclictest25-21ksoftirqd/122:53:231
4536993024,4cyclictest25-21ksoftirqd/122:19:291
4536993024,4cyclictest25-21ksoftirqd/121:36:201
4536993024,4cyclictest25-21ksoftirqd/100:22:321
4535993025,3cyclictest9-21ksoftirqd/023:45:460
4535993025,3cyclictest9-21ksoftirqd/021:28:520
4535993025,3cyclictest9-21ksoftirqd/000:38:530
4535993024,4cyclictest9-21ksoftirqd/021:37:560
4535993024,4cyclictest9-21ksoftirqd/021:07:100
4537992924,3cyclictest33-21ksoftirqd/220:25:182
4536992924,3cyclictest25-21ksoftirqd/123:20:011
4536992924,3cyclictest25-21ksoftirqd/122:59:191
4536992924,3cyclictest25-21ksoftirqd/121:15:331
4536992924,3cyclictest25-21ksoftirqd/121:14:301
4536992924,3cyclictest25-21ksoftirqd/119:47:491
4536992924,3cyclictest25-21ksoftirqd/119:35:121
4536992924,3cyclictest25-21ksoftirqd/100:13:101
4535992924,3cyclictest9-21ksoftirqd/000:17:270
4535992923,4cyclictest9-21ksoftirqd/023:01:150
4535992923,4cyclictest9-21ksoftirqd/020:28:350
4535992923,4cyclictest9-21ksoftirqd/000:32:510
134991290,0ptp4l401ktimersoftd/300:27:263
4538992823,3cyclictest41-21ksoftirqd/323:19:243
4538992823,3cyclictest41-21ksoftirqd/323:19:243
4537992823,3cyclictest33-21ksoftirqd/221:20:512
4536992822,4cyclictest25-21ksoftirqd/121:04:231
4536992822,4cyclictest25-21ksoftirqd/100:00:361
453699280,2cyclictest0-21swapper/100:17:041
4535992822,4cyclictest9-21ksoftirqd/021:18:540
4537992722,3cyclictest33-21ksoftirqd/222:40:212
4535992722,3cyclictest9-21ksoftirqd/022:00:100
4535992721,4cyclictest9-21ksoftirqd/021:51:480
4536992620,4cyclictest25-21ksoftirqd/122:31:521
453699260,4cyclictest10067-21fw_packets22:35:171
4535992621,3cyclictest9-21ksoftirqd/023:09:130
4535992621,3cyclictest9-21ksoftirqd/022:14:400
4535992620,4cyclictest9-21ksoftirqd/022:32:230
4535992620,4cyclictest9-21ksoftirqd/000:25:490
4535992520,3cyclictest9-21ksoftirqd/021:40:320
4535992519,4cyclictest9-21ksoftirqd/023:31:090
4535992519,4cyclictest9-21ksoftirqd/019:22:120
4535992519,4cyclictest9-21ksoftirqd/000:14:210
4536992419,3cyclictest25-21ksoftirqd/122:15:001
4535992419,3cyclictest9-21ksoftirqd/023:39:230
4535992418,4cyclictest9-21ksoftirqd/022:44:150
4536992318,3cyclictest25-21ksoftirqd/119:44:431
4536992317,4cyclictest25-21ksoftirqd/100:33:351
4535992318,3cyclictest9-21ksoftirqd/023:28:400
4535992317,4cyclictest9-21ksoftirqd/020:18:040
4536992217,3cyclictest25-21ksoftirqd/122:49:011
4536992217,3cyclictest25-21ksoftirqd/120:26:591
4535992218,3cyclictest9-21ksoftirqd/020:35:200
4535992218,3cyclictest9-21ksoftirqd/020:35:200
4535992115,3cyclictest9-21ksoftirqd/000:02:010
4535991813,3cyclictest12598-21grep20:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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