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2025-11-20 - 10:22
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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 Thu Nov 20, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242702210128,72sleep10-21swapper/119:05:141
427791197162,23phc2sys0-21swapper/319:09:593
264632186153,22sleep20-21swapper/219:09:452
264162182115,22sleep00-21swapper/019:09:060
657221800,5sleep22677999cyclictest22:15:142
1781821630,2sleep22677999cyclictest21:30:252
115512950,2sleep10-21swapper/122:25:121
427291630,1ptp4l401ktimersoftd/320:57:513
427591550,4getstats19827-21cat22:40:223
427291550,1ptp4l401ktimersoftd/320:20:253
298742540,2sleep229875-21kernelversion23:00:192
26778995321,3cyclictest25-21ksoftirqd/121:58:381
427591520,6getstats2678099cyclictest00:35:243
427291520,1ptp4l401ktimersoftd/320:35:103
26778995221,7cyclictest25-21ksoftirqd/123:26:241
26778994841,4cyclictest704-21cron21:00:011
427591440,5getstats5703-21ptp4l-jitter00:20:223
427591440,1getstats0-21swapper/319:35:213
26779994440,2cyclictest987-21cron19:55:002
2677999442,40cyclictest0-21swapper/200:00:282
26778994440,2cyclictest231rcuc/120:14:071
427291430,0ptp4l401ktimersoftd/323:05:313
427291430,0ptp4l401ktimersoftd/321:24:503
26777994327,13cyclictest9-21ksoftirqd/020:55:080
427291420,0ptp4l401ktimersoftd/323:01:383
427291420,0ptp4l401ktimersoftd/321:05:353
427591410,1getstats0-21swapper/319:40:213
427291410,0ptp4l401ktimersoftd/322:56:533
427291410,0ptp4l401ktimersoftd/320:25:123
36998410,8rtkit-daemon0-21swapper/020:32:160
2924124122,9sleep341-21ksoftirqd/319:30:003
26780994034,4cyclictest41-21ksoftirqd/322:09:063
26780994034,4cyclictest41-21ksoftirqd/322:09:063
26780994030,6cyclictest41-21ksoftirqd/323:45:173
2677999400,38cyclictest0-21swapper/220:25:282
2677899406,7cyclictest25-21ksoftirqd/100:05:141
2677899402,36cyclictest22048-21kworker/1:000:21:371
26778994022,7cyclictest25-21ksoftirqd/123:41:531
26778994014,7cyclictest25-21ksoftirqd/119:45:111
26777994033,4cyclictest18604-21cron23:44:590
427291390,0ptp4l401ktimersoftd/322:20:003
427291390,0ptp4l401ktimersoftd/322:11:593
26780993933,4cyclictest41-21ksoftirqd/300:16:473
2677899396,9cyclictest25-21ksoftirqd/119:58:281
2677899394,8cyclictest25-21ksoftirqd/122:50:191
26778993921,6cyclictest25-21ksoftirqd/119:27:581
2677899391,35cyclictest12904-21sshd20:15:351
2677899390,6cyclictest25-21ksoftirqd/120:30:271
26777993933,4cyclictest9-21ksoftirqd/019:11:540
26777993932,4cyclictest9-21ksoftirqd/019:17:240
36998380,1rtkit-daemon368-21rtkit-daemon22:55:122
26780993833,3cyclictest41-21ksoftirqd/323:27:113
26780993833,3cyclictest41-21ksoftirqd/323:19:063
26780993833,3cyclictest41-21ksoftirqd/320:31:193
26780993833,3cyclictest41-21ksoftirqd/320:05:373
26780993832,4cyclictest41-21ksoftirqd/322:48:483
26780993832,4cyclictest41-21ksoftirqd/321:51:483
26780993832,4cyclictest41-21ksoftirqd/321:14:253
26780993832,4cyclictest41-21ksoftirqd/319:55:183
26780993832,4cyclictest41-21ksoftirqd/319:21:243
26779993832,4cyclictest33-21ksoftirqd/221:04:512
26778993832,4cyclictest25-21ksoftirqd/122:06:151
26778993832,4cyclictest25-21ksoftirqd/122:06:151
26778993832,4cyclictest25-21ksoftirqd/121:36:381
26778993831,4cyclictest25-21ksoftirqd/119:41:201
26778993831,4cyclictest25-21ksoftirqd/100:26:111
26778993813,3cyclictest25-21ksoftirqd/122:21:581
26777993832,4cyclictest9-21ksoftirqd/023:13:200
26777993832,4cyclictest9-21ksoftirqd/020:51:520
26777993832,4cyclictest9-21ksoftirqd/020:51:520
26777993831,4cyclictest9-21ksoftirqd/000:27:110
427291370,0ptp4l401ktimersoftd/322:30:213
26780993732,3cyclictest41-21ksoftirqd/321:56:553
26780993732,3cyclictest41-21ksoftirqd/320:18:333
26780993732,2cyclictest41-21ksoftirqd/322:00:313
26780993731,4cyclictest41-21ksoftirqd/323:24:323
26780993731,4cyclictest41-21ksoftirqd/321:38:373
26780993731,4cyclictest41-21ksoftirqd/319:10:293
26780993731,4cyclictest41-21ksoftirqd/300:33:273
26780993730,4cyclictest41-21ksoftirqd/321:31:593
26779993732,3cyclictest33-21ksoftirqd/219:23:522
26779993731,4cyclictest33-21ksoftirqd/222:35:562
26779993731,4cyclictest33-21ksoftirqd/222:01:492
26779993731,4cyclictest33-21ksoftirqd/221:38:072
26778993732,3cyclictest25-21ksoftirqd/121:50:441
26778993732,3cyclictest25-21ksoftirqd/100:00:471
26778993731,4cyclictest25-21ksoftirqd/120:08:551
26778993730,4cyclictest25-21ksoftirqd/123:56:511
26778993730,4cyclictest25-21ksoftirqd/123:56:501
26778993730,4cyclictest25-21ksoftirqd/122:39:161
26778993730,4cyclictest25-21ksoftirqd/121:02:041
26778993730,4cyclictest25-21ksoftirqd/119:54:361
26777993731,4cyclictest9-21ksoftirqd/023:53:440
26777993731,4cyclictest9-21ksoftirqd/022:10:270
26777993731,4cyclictest9-21ksoftirqd/021:49:010
26777993730,4cyclictest9-21ksoftirqd/023:56:250
26777993730,4cyclictest9-21ksoftirqd/023:56:250
26777993730,4cyclictest9-21ksoftirqd/022:01:030
26780993631,3cyclictest41-21ksoftirqd/323:40:243
26780993631,2cyclictest41-21ksoftirqd/300:11:303
26780993630,3cyclictest41-21ksoftirqd/300:25:183
26779993630,4cyclictest33-21ksoftirqd/223:59:332
26779993630,4cyclictest33-21ksoftirqd/223:59:322
26779993630,4cyclictest33-21ksoftirqd/219:11:122
26779993630,4cyclictest33-21ksoftirqd/200:18:422
26779993630,3cyclictest33-21ksoftirqd/223:05:032
26778993631,3cyclictest25-21ksoftirqd/120:45:251
26778993629,4cyclictest25-21ksoftirqd/122:48:141
2677899362,5cyclictest25-21ksoftirqd/123:14:101
26777993630,4cyclictest9-21ksoftirqd/023:24:000
26777993630,4cyclictest9-21ksoftirqd/022:43:450
26777993630,4cyclictest9-21ksoftirqd/022:27:080
26777993630,4cyclictest9-21ksoftirqd/020:28:240
26777993630,4cyclictest9-21ksoftirqd/019:20:250
26777993629,4cyclictest9-21ksoftirqd/021:50:090
26777993629,4cyclictest9-21ksoftirqd/019:37:180
26777993629,4cyclictest6508-21cron00:25:000
26777993613,3cyclictest747-21sed19:52:410
2677799360,2cyclictest121rcu_preempt20:38:050
427291350,0ptp4l401ktimersoftd/323:55:253
427291350,0ptp4l401ktimersoftd/323:55:243
26780993529,4cyclictest41-21ksoftirqd/322:39:223
26780993529,4cyclictest41-21ksoftirqd/319:45:593
2677999357,26cyclictest0-21swapper/200:20:282
26779993530,3cyclictest33-21ksoftirqd/223:24:262
26779993530,3cyclictest33-21ksoftirqd/221:51:272
26779993529,4cyclictest33-21ksoftirqd/223:54:022
26779993529,4cyclictest33-21ksoftirqd/223:43:472
26779993529,4cyclictest33-21ksoftirqd/223:31:242
26779993529,4cyclictest33-21ksoftirqd/223:15:352
26779993529,4cyclictest33-21ksoftirqd/220:47:252
26779993529,4cyclictest33-21ksoftirqd/220:32:002
26779993529,4cyclictest33-21ksoftirqd/219:29:262
26779993529,4cyclictest33-21ksoftirqd/200:35:592
26778993529,4cyclictest25-21ksoftirqd/121:21:301
26778993529,4cyclictest25-21ksoftirqd/120:54:141
26778993529,4cyclictest25-21ksoftirqd/120:54:141
26778993529,3cyclictest25-21ksoftirqd/121:17:401
26778993522,3cyclictest25-21ksoftirqd/120:22:141
26777993529,4cyclictest9-21ksoftirqd/023:37:110
26777993529,4cyclictest9-21ksoftirqd/022:15:440
26777993529,4cyclictest9-21ksoftirqd/021:56:590
26777993529,4cyclictest9-21ksoftirqd/021:40:460
26777993529,4cyclictest9-21ksoftirqd/000:37:410
26777993528,4cyclictest9-21ksoftirqd/020:12:240
26777993527,5cyclictest9-21ksoftirqd/021:08:130
427291340,8ptp4l401ktimersoftd/300:07:043
26780993429,3cyclictest41-21ksoftirqd/323:30:553
26780993428,4cyclictest41-21ksoftirqd/323:35:473
26780993428,4cyclictest41-21ksoftirqd/322:28:273
26780993427,4cyclictest41-21ksoftirqd/320:51:153
26780993427,4cyclictest41-21ksoftirqd/320:51:153
26779993429,3cyclictest33-21ksoftirqd/222:24:332
26779993429,3cyclictest33-21ksoftirqd/220:58:322
26779993429,3cyclictest33-21ksoftirqd/220:40:472
26779993429,3cyclictest33-21ksoftirqd/219:31:102
26779993428,4cyclictest33-21ksoftirqd/222:09:252
26779993428,4cyclictest33-21ksoftirqd/222:09:242
26779993428,4cyclictest33-21ksoftirqd/221:41:532
26779993428,4cyclictest33-21ksoftirqd/220:38:182
26779993428,4cyclictest33-21ksoftirqd/220:10:342
26779993428,4cyclictest33-21ksoftirqd/220:03:562
26779993427,4cyclictest33-21ksoftirqd/222:31:302
26778993429,3cyclictest25-21ksoftirqd/123:45:161
26778993429,3cyclictest25-21ksoftirqd/123:38:141
26778993429,3cyclictest25-21ksoftirqd/120:00:341
26778993428,4cyclictest25-21ksoftirqd/119:30:171
26778993428,3cyclictest25-21ksoftirqd/120:25:111
26778993427,4cyclictest25-21ksoftirqd/122:59:381
26778993427,4cyclictest25-21ksoftirqd/121:14:061
26777993429,3cyclictest9-21ksoftirqd/000:16:390
26777993428,4cyclictest9-21ksoftirqd/023:07:340
26777993428,4cyclictest9-21ksoftirqd/020:20:540
26777993428,3cyclictest9-21ksoftirqd/021:26:090
26777993428,3cyclictest9-21ksoftirqd/020:47:420
26777993427,4cyclictest9-21ksoftirqd/021:13:180
26777993426,5cyclictest9-21ksoftirqd/020:15:210
26780993328,3cyclictest41-21ksoftirqd/322:20:423
26780993328,3cyclictest41-21ksoftirqd/320:49:293
26780993328,3cyclictest41-21ksoftirqd/320:44:093
26780993328,3cyclictest41-21ksoftirqd/319:30:563
26780993328,3cyclictest41-21ksoftirqd/319:17:323
26780993327,4cyclictest41-21ksoftirqd/320:12:273
26779993328,3cyclictest33-21ksoftirqd/221:46:142
26779993327,4cyclictest33-21ksoftirqd/223:47:082
26779993327,4cyclictest33-21ksoftirqd/223:26:222
26779993327,4cyclictest33-21ksoftirqd/222:53:222
26779993327,4cyclictest33-21ksoftirqd/221:17:292
26779993327,4cyclictest33-21ksoftirqd/200:34:032
26779993327,3cyclictest33-21ksoftirqd/222:40:582
26779993326,4cyclictest33-21ksoftirqd/221:06:502
2677999330,2cyclictest0-21swapper/220:50:282
2677999330,2cyclictest0-21swapper/220:50:272
26778993328,3cyclictest25-21ksoftirqd/122:14:281
26778993327,4cyclictest25-21ksoftirqd/123:24:381
26778993327,4cyclictest25-21ksoftirqd/121:05:361
26778993322,3cyclictest25-21ksoftirqd/100:33:231
26777993328,3cyclictest9-21ksoftirqd/023:15:570
26777993328,3cyclictest9-21ksoftirqd/022:49:110
26777993328,3cyclictest9-21ksoftirqd/021:40:010
26777993328,3cyclictest9-21ksoftirqd/021:01:270
26777993328,3cyclictest9-21ksoftirqd/019:26:350
26777993327,4cyclictest9-21ksoftirqd/023:27:490
26777993327,4cyclictest9-21ksoftirqd/023:02:250
26777993327,4cyclictest9-21ksoftirqd/020:43:170
26777993326,4cyclictest9-21ksoftirqd/022:05:090
26777993326,4cyclictest9-21ksoftirqd/022:05:090
26777993326,4cyclictest9-21ksoftirqd/021:31:550
427291320,0ptp4l401ktimersoftd/319:51:233
26780993227,3cyclictest41-21ksoftirqd/323:53:173
26780993226,4cyclictest41-21ksoftirqd/322:52:333
26780993225,4cyclictest41-21ksoftirqd/321:42:573
26779993227,3cyclictest33-21ksoftirqd/222:10:492
26779993226,4cyclictest33-21ksoftirqd/223:38:072
26779993226,4cyclictest33-21ksoftirqd/221:25:032
26779993226,4cyclictest33-21ksoftirqd/219:36:282
26779993225,4cyclictest33-21ksoftirqd/219:44:302
2677999320,18cyclictest31372-21sshd19:45:282
26778993227,3cyclictest25-21ksoftirqd/121:43:121
26778993227,3cyclictest25-21ksoftirqd/120:35:481
26778993226,4cyclictest25-21ksoftirqd/119:22:191
26778993226,3cyclictest25-21ksoftirqd/119:35:251
26778993225,4cyclictest25-21ksoftirqd/121:49:531
26778993213,6cyclictest25-21ksoftirqd/120:42:161
2677899320,6cyclictest25-21ksoftirqd/100:10:261
26777993227,3cyclictest9-21ksoftirqd/023:34:150
26777993226,4cyclictest9-21ksoftirqd/020:00:450
26777993226,4cyclictest9-21ksoftirqd/019:57:400
26777993225,4cyclictest9-21ksoftirqd/019:43:240
26777993212,3cyclictest26865-21expr00:00:140
26780993125,3cyclictest41-21ksoftirqd/321:48:573
26779993126,3cyclictest33-21ksoftirqd/220:10:002
2677999311,27cyclictest28737-21apt-get21:55:122
26778993125,4cyclictest25-21ksoftirqd/123:06:281
26778993125,4cyclictest25-21ksoftirqd/119:16:411
26778993125,4cyclictest25-21ksoftirqd/119:13:201
26778993124,4cyclictest25-21ksoftirqd/123:51:221
26778993111,5cyclictest25-21ksoftirqd/122:01:161
26778993111,3cyclictest25-21ksoftirqd/122:19:251
2677799318,4cyclictest27602-21netstat22:55:240
26777993125,4cyclictest9-21ksoftirqd/023:47:300
26777993125,4cyclictest9-21ksoftirqd/021:16:030
26777993124,4cyclictest9-21ksoftirqd/022:50:590
26777993110,3cyclictest11462-21expr21:20:120
26780993025,3cyclictest41-21ksoftirqd/300:02:343
26780993024,4cyclictest41-21ksoftirqd/323:14:013
26780993024,4cyclictest41-21ksoftirqd/321:25:453
26780993024,3cyclictest41-21ksoftirqd/320:00:243
26779993025,3cyclictest33-21ksoftirqd/200:10:492
26779993024,4cyclictest33-21ksoftirqd/222:27:372
26779993024,3cyclictest33-21ksoftirqd/220:17:392
2677999301,27cyclictest0-21swapper/222:45:122
26777993025,3cyclictest9-21ksoftirqd/020:09:390
26777993024,4cyclictest9-21ksoftirqd/022:33:050
26777993024,4cyclictest9-21ksoftirqd/000:30:400
26780992924,3cyclictest41-21ksoftirqd/321:02:003
26779992924,3cyclictest33-21ksoftirqd/223:12:072
26779992924,3cyclictest33-21ksoftirqd/221:20:032
26779992924,3cyclictest33-21ksoftirqd/221:11:182
26779992924,3cyclictest33-21ksoftirqd/200:28:422
2677999290,27cyclictest0-21swapper/219:56:242
26778992923,4cyclictest25-21ksoftirqd/123:01:231
26778992923,4cyclictest25-21ksoftirqd/122:32:181
26777992923,4cyclictest9-21ksoftirqd/022:23:310
26777992910,3cyclictest32141-21forks00:10:150
26780992823,3cyclictest41-21ksoftirqd/321:15:113
26779992823,3cyclictest33-21ksoftirqd/220:20:112
26779992823,3cyclictest33-21ksoftirqd/200:05:362
26778992824,2cyclictest231rcuc/100:15:171
26778992823,3cyclictest25-21ksoftirqd/123:30:181
26777992811,2cyclictest16783-21fschecks_count22:35:150
26779992722,3cyclictest33-21ksoftirqd/219:15:502
2677899272,5cyclictest25-21ksoftirqd/122:43:451
26778992723,3cyclictest25-21ksoftirqd/121:30:101
26778992621,3cyclictest25-21ksoftirqd/121:25:421
26778992621,3cyclictest25-21ksoftirqd/100:38:501
26778992620,4cyclictest25-21ksoftirqd/123:16:311
26777992620,4cyclictest9-21ksoftirqd/000:07:450
26777992519,4cyclictest9-21ksoftirqd/019:34:090
26777992317,4cyclictest9-21ksoftirqd/019:46:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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