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2025-11-18 - 08:39
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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 Tue Nov 18, 2025 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
427791205172,22phc2sys0-21swapper/319:07:253
176522203169,23sleep00-21swapper/019:09:330
176462203169,22sleep10-21swapper/119:09:301
175642202168,22sleep20-21swapper/219:08:262
36998960,19rtkit-daemon4093-21cut20:50:190
19612850,3sleep11965-21needreboot21:50:231
427291720,1ptp4l401ktimersoftd/319:40:013
427291720,1ptp4l401ktimersoftd/319:40:013
161122720,13sleep316113-21fschecks_time21:15:163
17981995613,4cyclictest33-21ksoftirqd/200:15:202
277292550,3sleep027730-21cat22:40:290
277292550,3sleep027730-21cat22:40:290
17982995526,4cyclictest41-21ksoftirqd/300:20:123
17981995418,3cyclictest121rcu_preempt23:34:592
17981995311,9cyclictest33-21ksoftirqd/200:00:242
17981995311,8cyclictest33-21ksoftirqd/220:25:232
17981995311,10cyclictest33-21ksoftirqd/222:10:002
17981995215,5cyclictest33-21ksoftirqd/223:39:352
17981995210,8cyclictest33-21ksoftirqd/221:40:172
1798199519,2cyclictest121rcu_preempt21:25:002
17981995115,8cyclictest33-21ksoftirqd/221:45:222
427291500,38ptp4l0-21swapper/319:10:003
1798199508,9cyclictest33-21ksoftirqd/223:25:252
1798199508,8cyclictest33-21ksoftirqd/221:25:142
17981995013,9cyclictest33-21ksoftirqd/221:30:142
17981995012,9cyclictest33-21ksoftirqd/219:25:232
17981995012,5cyclictest33-21ksoftirqd/219:31:072
1798199499,9cyclictest33-21ksoftirqd/220:05:222
1798199498,9cyclictest33-21ksoftirqd/223:45:202
17981994914,9cyclictest33-21ksoftirqd/223:50:302
17981994913,4cyclictest33-21ksoftirqd/222:20:132
17981994912,8cyclictest33-21ksoftirqd/223:40:282
1798199488,9cyclictest33-21ksoftirqd/219:20:302
1798199487,10cyclictest33-21ksoftirqd/220:55:292
17981994813,9cyclictest33-21ksoftirqd/219:15:222
17981994813,8cyclictest33-21ksoftirqd/219:50:152
17979994830,15cyclictest9-21ksoftirqd/021:40:120
1798199478,8cyclictest33-21ksoftirqd/223:08:122
1798199477,4cyclictest33-21ksoftirqd/222:05:122
1798199476,8cyclictest33-21ksoftirqd/221:10:242
17981994714,9cyclictest33-21ksoftirqd/220:40:152
1798199471,3cyclictest121rcu_preempt00:20:132
17981994713,10cyclictest33-21ksoftirqd/219:10:162
1798199468,9cyclictest33-21ksoftirqd/219:40:282
1798199468,9cyclictest33-21ksoftirqd/219:40:272
1798199466,4cyclictest33-21ksoftirqd/200:25:292
17981994612,10cyclictest33-21ksoftirqd/200:00:012
17981994612,10cyclictest33-21ksoftirqd/200:00:012
17979994627,3cyclictest9-21ksoftirqd/021:24:590
1798199457,7cyclictest33-21ksoftirqd/222:35:002
17981994539,3cyclictest33-21ksoftirqd/223:00:012
17981994515,2cyclictest121rcu_preempt22:50:172
17981994512,9cyclictest33-21ksoftirqd/221:40:012
17981994512,8cyclictest33-21ksoftirqd/200:07:312
17981994511,10cyclictest33-21ksoftirqd/223:20:282
129482450,2sleep10-21swapper/121:10:001
17982994432,10cyclictest41-21ksoftirqd/322:40:313
17982994432,10cyclictest41-21ksoftirqd/322:40:313
17982994413,3cyclictest41-21ksoftirqd/319:30:253
1798199446,10cyclictest33-21ksoftirqd/221:50:212
1798199445,5cyclictest33-21ksoftirqd/219:35:142
1798199445,10cyclictest33-21ksoftirqd/223:15:142
17981994430,12cyclictest33-21ksoftirqd/222:15:292
17981994410,9cyclictest33-21ksoftirqd/220:15:002
4662430,1sleep30-21swapper/323:55:273
4662430,1sleep30-21swapper/323:55:263
17982994332,9cyclictest41-21ksoftirqd/323:35:233
17982994312,3cyclictest41-21ksoftirqd/322:20:123
1798199439,10cyclictest33-21ksoftirqd/220:00:142
1798199435,10cyclictest33-21ksoftirqd/222:25:292
17981994338,3cyclictest33-21ksoftirqd/222:35:002
17981994311,11cyclictest33-21ksoftirqd/220:37:582
1798299429,3cyclictest41-21ksoftirqd/320:15:013
17982994211,4cyclictest41-21ksoftirqd/319:25:273
17981994211,13cyclictest33-21ksoftirqd/200:10:132
17982994136,3cyclictest41-21ksoftirqd/323:30:003
17982994135,3cyclictest41-21ksoftirqd/321:50:163
17982994130,9cyclictest41-21ksoftirqd/321:30:263
17982994113,3cyclictest41-21ksoftirqd/321:45:123
1798199418,8cyclictest33-21ksoftirqd/221:05:152
17981994110,9cyclictest33-21ksoftirqd/222:45:202
17980994134,4cyclictest25-21ksoftirqd/121:42:261
427291400,0ptp4l401ktimersoftd/322:50:193
1798299408,4cyclictest41-21ksoftirqd/323:13:173
17982994035,3cyclictest41-21ksoftirqd/320:40:213
17982994035,3cyclictest41-21ksoftirqd/319:59:593
17982994035,2cyclictest41-21ksoftirqd/323:50:303
17982994034,4cyclictest41-21ksoftirqd/323:18:163
17982994034,4cyclictest41-21ksoftirqd/322:25:363
17982994034,3cyclictest41-21ksoftirqd/319:45:173
17982994033,3cyclictest41-21ksoftirqd/320:15:173
1798299401,2cyclictest121rcu_preempt23:00:003
1798199406,9cyclictest33-21ksoftirqd/219:55:172
1798199406,7cyclictest33-21ksoftirqd/222:00:122
17981994036,2cyclictest33-21ksoftirqd/200:35:002
1798199403,2cyclictest121rcu_preempt20:49:592
1798199401,3cyclictest33-21ksoftirqd/223:00:272
1798199400,2cyclictest121rcu_preempt00:40:002
17980994033,4cyclictest25-21ksoftirqd/120:31:241
427291390,0ptp4l401ktimersoftd/320:09:563
36998390,6rtkit-daemon15976-21cron23:25:000
1798299399,3cyclictest41-21ksoftirqd/322:50:003
17982993935,2cyclictest401ktimersoftd/321:30:003
17982993934,3cyclictest41-21ksoftirqd/320:20:203
17982993933,4cyclictest41-21ksoftirqd/321:39:553
17982993933,4cyclictest41-21ksoftirqd/321:03:373
17982993933,4cyclictest41-21ksoftirqd/300:13:453
17982993933,3cyclictest41-21ksoftirqd/300:28:283
17982993927,6cyclictest41-21ksoftirqd/321:25:003
1798199399,8cyclictest33-21ksoftirqd/221:55:162
17981993934,3cyclictest33-21ksoftirqd/220:20:252
17980993932,4cyclictest25-21ksoftirqd/120:45:571
17979993933,4cyclictest9-21ksoftirqd/022:19:120
427291380,0ptp4l401ktimersoftd/321:40:113
1798299383,3cyclictest41-21ksoftirqd/300:40:013
17982993833,3cyclictest41-21ksoftirqd/321:10:173
17982993833,3cyclictest41-21ksoftirqd/300:07:193
17982993832,4cyclictest41-21ksoftirqd/320:26:503
17982993832,3cyclictest41-21ksoftirqd/323:00:273
17982993832,3cyclictest41-21ksoftirqd/322:00:203
17982993832,3cyclictest41-21ksoftirqd/320:50:133
17982993832,3cyclictest41-21ksoftirqd/320:00:173
17982993831,5cyclictest41-21ksoftirqd/300:03:293
17982993831,4cyclictest41-21ksoftirqd/322:05:113
17982993831,4cyclictest41-21ksoftirqd/320:57:313
1798299380,2cyclictest121rcu_preempt20:35:003
1798199385,11cyclictest33-21ksoftirqd/220:50:152
17981993832,3cyclictest33-21ksoftirqd/221:20:002
17981993832,3cyclictest33-21ksoftirqd/220:20:012
1798199381,3cyclictest121rcu_preempt22:45:002
1798199381,3cyclictest121rcu_preempt22:45:002
17980993832,4cyclictest25-21ksoftirqd/121:18:231
17980993832,4cyclictest25-21ksoftirqd/120:43:411
17980993832,4cyclictest25-21ksoftirqd/120:29:041
17980993832,4cyclictest25-21ksoftirqd/119:26:021
17980993831,4cyclictest25-21ksoftirqd/100:12:221
17979993832,4cyclictest9-21ksoftirqd/023:47:140
17979993832,4cyclictest9-21ksoftirqd/021:30:080
17979993832,4cyclictest9-21ksoftirqd/000:24:050
1798299377,3cyclictest41-21ksoftirqd/323:45:143
1798299377,3cyclictest41-21ksoftirqd/319:50:163
17982993732,3cyclictest41-21ksoftirqd/322:10:213
17982993732,3cyclictest41-21ksoftirqd/320:45:133
17982993732,3cyclictest41-21ksoftirqd/320:35:273
17982993731,4cyclictest41-21ksoftirqd/323:30:193
17982993731,4cyclictest41-21ksoftirqd/323:05:453
17982993731,3cyclictest41-21ksoftirqd/319:37:363
17982993730,4cyclictest41-21ksoftirqd/300:18:213
1798299371,3cyclictest121rcu_preempt22:15:223
1798199377,7cyclictest33-21ksoftirqd/221:00:162
17981993731,3cyclictest33-21ksoftirqd/223:10:212
17981993730,4cyclictest33-21ksoftirqd/219:48:252
17981993729,4cyclictest33-21ksoftirqd/220:30:122
17980993732,3cyclictest25-21ksoftirqd/119:57:021
17980993731,4cyclictest25-21ksoftirqd/122:51:211
17980993731,4cyclictest25-21ksoftirqd/120:59:011
17980993731,4cyclictest25-21ksoftirqd/100:03:271
17980993730,4cyclictest25-21ksoftirqd/122:57:591
17979993731,4cyclictest9-21ksoftirqd/023:52:590
17979993731,4cyclictest9-21ksoftirqd/022:25:420
17979993731,4cyclictest9-21ksoftirqd/020:23:460
17979993731,3cyclictest1083-21cron00:00:010
17979993731,3cyclictest1083-21cron00:00:010
17979993730,4cyclictest9-21ksoftirqd/022:59:240
17979993730,4cyclictest9-21ksoftirqd/000:08:470
17982993632,2cyclictest41-21ksoftirqd/322:33:193
17982993631,3cyclictest41-21ksoftirqd/322:37:083
17982993631,3cyclictest41-21ksoftirqd/300:34:303
17982993631,2cyclictest41-21ksoftirqd/323:20:273
17980993631,3cyclictest25-21ksoftirqd/119:50:441
17980993630,4cyclictest25-21ksoftirqd/120:23:311
17980993630,4cyclictest25-21ksoftirqd/120:14:121
17980993630,4cyclictest25-21ksoftirqd/119:13:061
17980993630,3cyclictest25-21ksoftirqd/119:34:001
17980993629,4cyclictest25-21ksoftirqd/122:16:201
17980993629,4cyclictest25-21ksoftirqd/122:14:271
17979993631,3cyclictest9-21ksoftirqd/022:03:050
17979993630,4cyclictest9-21ksoftirqd/023:04:450
17979993630,4cyclictest9-21ksoftirqd/022:12:250
17979993630,4cyclictest9-21ksoftirqd/019:18:390
17979993630,3cyclictest9-21ksoftirqd/022:20:440
17979993630,3cyclictest9-21ksoftirqd/022:05:120
17979993629,5cyclictest9-21ksoftirqd/019:33:550
17979993629,4cyclictest9-21ksoftirqd/020:31:200
36998350,3rtkit-daemon28854-21df22:45:180
17982993532,2cyclictest41-21ksoftirqd/319:20:003
17982993529,4cyclictest41-21ksoftirqd/321:08:253
17982993528,4cyclictest41-21ksoftirqd/319:22:113
17982993522,3cyclictest41-21ksoftirqd/323:40:223
17980993530,3cyclictest25-21ksoftirqd/100:20:001
17980993529,4cyclictest25-21ksoftirqd/123:39:001
17980993529,4cyclictest25-21ksoftirqd/123:10:321
17980993529,4cyclictest25-21ksoftirqd/121:03:021
17980993529,4cyclictest25-21ksoftirqd/120:18:251
17980993529,4cyclictest25-21ksoftirqd/100:37:541
17980993529,4cyclictest25-21ksoftirqd/100:21:281
17980993529,3cyclictest25-21ksoftirqd/123:32:541
17980993528,4cyclictest25-21ksoftirqd/123:25:121
17980993528,4cyclictest25-21ksoftirqd/123:20:551
17980993528,4cyclictest25-21ksoftirqd/121:20:401
17979993529,4cyclictest9-21ksoftirqd/023:28:590
17979993529,4cyclictest9-21ksoftirqd/019:29:220
17979993529,4cyclictest9-21ksoftirqd/000:28:300
17979993529,3cyclictest9-21ksoftirqd/020:05:130
17979993529,3cyclictest9-21ksoftirqd/000:15:120
17979993528,4cyclictest9-21ksoftirqd/020:03:560
17980993429,3cyclictest25-21ksoftirqd/123:05:061
17980993429,3cyclictest25-21ksoftirqd/122:01:311
17980993429,3cyclictest25-21ksoftirqd/100:32:501
17980993428,4cyclictest25-21ksoftirqd/123:40:281
17980993427,4cyclictest25-21ksoftirqd/120:36:021
17979993428,4cyclictest9-21ksoftirqd/023:18:080
17979993428,4cyclictest9-21ksoftirqd/020:35:370
17979993428,3cyclictest9-21ksoftirqd/020:44:160
17979993427,4cyclictest9-21ksoftirqd/021:37:240
17979993427,4cyclictest9-21ksoftirqd/019:11:040
17982993328,3cyclictest41-21ksoftirqd/321:55:163
17980993328,3cyclictest25-21ksoftirqd/100:05:511
17980993327,4cyclictest25-21ksoftirqd/123:56:321
17980993327,4cyclictest25-21ksoftirqd/123:56:321
17980993327,4cyclictest25-21ksoftirqd/123:50:551
17980993327,4cyclictest25-21ksoftirqd/121:32:551
17980993327,4cyclictest25-21ksoftirqd/120:04:081
17979993328,3cyclictest9-21ksoftirqd/022:35:130
17979993328,3cyclictest9-21ksoftirqd/021:50:140
17979993328,3cyclictest9-21ksoftirqd/021:09:030
17979993328,3cyclictest9-21ksoftirqd/020:25:380
17979993328,3cyclictest9-21ksoftirqd/019:21:240
17979993328,3cyclictest9-21ksoftirqd/000:11:430
17979993327,4cyclictest9-21ksoftirqd/019:53:090
17979993327,4cyclictest9-21ksoftirqd/019:43:220
17979993327,4cyclictest9-21ksoftirqd/019:43:210
17980993227,3cyclictest25-21ksoftirqd/120:08:111
17980993226,4cyclictest25-21ksoftirqd/122:45:281
17980993226,4cyclictest25-21ksoftirqd/122:23:411
17980993226,4cyclictest25-21ksoftirqd/119:40:341
17980993226,4cyclictest25-21ksoftirqd/119:40:341
17980993226,4cyclictest25-21ksoftirqd/119:21:121
17979993227,3cyclictest9-21ksoftirqd/021:49:030
17979993227,3cyclictest9-21ksoftirqd/020:48:040
17979993227,3cyclictest9-21ksoftirqd/020:18:240
17979993226,4cyclictest9-21ksoftirqd/023:36:220
17979993226,4cyclictest9-21ksoftirqd/021:01:370
17979993226,4cyclictest9-21ksoftirqd/019:57:260
17979993226,3cyclictest21206-21grep00:40:000
17980993126,3cyclictest25-21ksoftirqd/122:25:451
17980993125,4cyclictest25-21ksoftirqd/123:16:261
17980993125,3cyclictest25-21ksoftirqd/122:35:041
1798099310,3cyclictest121rcu_preempt21:10:271
17979993126,3cyclictest9-21ksoftirqd/022:53:050
17979993126,3cyclictest9-21ksoftirqd/022:30:110
17979993126,3cyclictest9-21ksoftirqd/000:04:130
17979993125,4cyclictest9-21ksoftirqd/023:43:090
17979993124,4cyclictest9-21ksoftirqd/021:19:100
17979993124,4cyclictest9-21ksoftirqd/021:12:520
17979993025,3cyclictest9-21ksoftirqd/021:26:310
17979993024,4cyclictest9-21ksoftirqd/023:13:270
17979993024,4cyclictest9-21ksoftirqd/020:58:040
17979993024,3cyclictest9-21ksoftirqd/021:55:490
17980992924,3cyclictest25-21ksoftirqd/122:40:071
17980992924,3cyclictest25-21ksoftirqd/122:40:071
17980992924,3cyclictest25-21ksoftirqd/122:09:531
17980992924,3cyclictest25-21ksoftirqd/121:49:271
17980992924,3cyclictest25-21ksoftirqd/120:50:111
17980992923,4cyclictest25-21ksoftirqd/121:35:361
17979992924,3cyclictest9-21ksoftirqd/023:31:320
17980992721,3cyclictest25-21ksoftirqd/119:47:201
17979992722,3cyclictest9-21ksoftirqd/020:14:110
17979992721,4cyclictest9-21ksoftirqd/000:31:070
17980992620,4cyclictest25-21ksoftirqd/123:45:091
17980992620,4cyclictest25-21ksoftirqd/119:36:211
17979992620,4cyclictest9-21ksoftirqd/019:39:010
17980992418,4cyclictest25-21ksoftirqd/121:55:101
17979992417,5cyclictest9-21ksoftirqd/023:08:450
17980992319,3cyclictest25-21ksoftirqd/122:30:191
17980992318,3cyclictest25-21ksoftirqd/123:04:211
17980992318,3cyclictest25-21ksoftirqd/121:30:011
17979992216,4cyclictest9-21ksoftirqd/019:45:100
17980992116,3cyclictest25-21ksoftirqd/119:16:311
17980991914,3cyclictest25-21ksoftirqd/100:26:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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