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2025-11-24 - 04:44
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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 792 highest latencies:
System rackdslot2.osadl.org (updated Mon Nov 24, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254542208163,34sleep20-21swapper/219:06:292
254542208163,34sleep20-21swapper/219:06:292
136691208142,22phc2sys0-21swapper/319:09:503
136691208142,22phc2sys0-21swapper/319:09:493
255982207173,23sleep10-21swapper/119:08:221
255982207173,23sleep10-21swapper/119:08:211
254252203172,22sleep00-21swapper/019:06:070
254252203172,22sleep00-21swapper/019:06:070
136691148124,14phc2sys0-21swapper/319:10:013
200242570,5sleep22601899cyclictest22:20:142
26018994719,3cyclictest33-21ksoftirqd/221:40:182
26018994617,4cyclictest33-21ksoftirqd/222:45:212
26018994520,7cyclictest33-21ksoftirqd/200:09:592
26018994419,4cyclictest33-21ksoftirqd/220:05:142
26018994418,8cyclictest33-21ksoftirqd/200:35:002
26018994418,3cyclictest33-21ksoftirqd/221:00:152
26018994415,4cyclictest33-21ksoftirqd/223:15:182
26018994415,3cyclictest33-21ksoftirqd/221:50:192
136591440,1ptp4l401ktimersoftd/319:31:383
26018994318,7cyclictest33-21ksoftirqd/221:25:222
26018994316,4cyclictest33-21ksoftirqd/221:35:202
26018994316,3cyclictest33-21ksoftirqd/223:25:282
26018994316,3cyclictest33-21ksoftirqd/223:25:282
26018994312,8cyclictest33-21ksoftirqd/200:05:002
26018994310,5cyclictest33-21ksoftirqd/219:10:182
2601899428,5cyclictest33-21ksoftirqd/220:20:212
26018994217,3cyclictest33-21ksoftirqd/219:25:282
26018994216,4cyclictest33-21ksoftirqd/220:50:262
26018994213,5cyclictest33-21ksoftirqd/220:15:012
133291420,7getstats2601999cyclictest23:57:253
2601899417,11cyclictest33-21ksoftirqd/200:00:002
26018994116,3cyclictest33-21ksoftirqd/223:05:002
26018994114,6cyclictest33-21ksoftirqd/219:20:262
26018994114,4cyclictest33-21ksoftirqd/220:40:012
26018994113,4cyclictest33-21ksoftirqd/200:25:012
26018994112,4cyclictest33-21ksoftirqd/219:40:352
26018994110,7cyclictest33-21ksoftirqd/221:10:242
136591410,0ptp4l401ktimersoftd/323:10:153
2601899408,6cyclictest33-21ksoftirqd/220:25:012
2601899407,5cyclictest33-21ksoftirqd/219:50:142
26018994015,3cyclictest33-21ksoftirqd/222:55:242
26018994015,3cyclictest33-21ksoftirqd/222:25:172
26018994013,4cyclictest33-21ksoftirqd/223:25:002
26018994013,4cyclictest33-21ksoftirqd/222:05:012
26018994011,4cyclictest33-21ksoftirqd/223:40:342
26018994011,4cyclictest33-21ksoftirqd/220:45:022
26018994011,3cyclictest33-21ksoftirqd/220:30:132
26018994011,3cyclictest33-21ksoftirqd/220:30:132
136591400,0ptp4l401ktimersoftd/320:33:383
136591400,0ptp4l401ktimersoftd/320:33:383
2601999391,37cyclictest41-21ksoftirqd/300:01:253
2601899399,4cyclictest33-21ksoftirqd/222:05:102
2601899398,6cyclictest33-21ksoftirqd/220:15:232
26018993927,9cyclictest33-21ksoftirqd/221:05:252
26018993917,3cyclictest33-21ksoftirqd/221:30:132
26018993913,3cyclictest33-21ksoftirqd/223:35:012
26018993911,4cyclictest33-21ksoftirqd/220:00:142
26018993910,5cyclictest33-21ksoftirqd/219:55:152
26018993910,4cyclictest33-21ksoftirqd/222:40:132
26018993910,4cyclictest33-21ksoftirqd/219:30:172
2601699391,36cyclictest12323-21sshd22:01:030
2601899389,5cyclictest33-21ksoftirqd/200:35:002
2601899388,4cyclictest33-21ksoftirqd/219:40:002
2601899386,5cyclictest33-21ksoftirqd/221:20:002
2601899385,4cyclictest33-21ksoftirqd/222:10:272
26018993810,4cyclictest33-21ksoftirqd/221:55:222
26018993810,3cyclictest33-21ksoftirqd/222:35:202
2601899377,4cyclictest33-21ksoftirqd/223:10:202
26018993727,3cyclictest33-21ksoftirqd/222:35:002
26018993725,3cyclictest33-21ksoftirqd/220:40:232
26018993712,4cyclictest33-21ksoftirqd/200:15:242
26018993710,4cyclictest33-21ksoftirqd/223:50:012
26019993631,3cyclictest29454-21cron22:40:003
2601899368,4cyclictest33-21ksoftirqd/221:20:142
26018993629,2cyclictest33-21ksoftirqd/223:10:002
26016993623,4cyclictest9-21ksoftirqd/023:05:170
26019993529,4cyclictest14050-21cron21:00:003
26019993529,4cyclictest14050-21cron21:00:003
2601899359,4cyclictest33-21ksoftirqd/200:30:012
2601899355,5cyclictest33-21ksoftirqd/223:35:152
2601899354,5cyclictest33-21ksoftirqd/220:55:232
2601899354,5cyclictest33-21ksoftirqd/220:55:232
26018993524,5cyclictest33-21ksoftirqd/222:50:192
2601899350,3cyclictest121rcu_preempt19:15:132
136591350,0ptp4l401ktimersoftd/320:25:003
26018993429,3cyclictest33-21ksoftirqd/200:10:182
26019993327,4cyclictest41-21ksoftirqd/320:47:323
2601899333,5cyclictest33-21ksoftirqd/223:50:162
26018993327,3cyclictest33-21ksoftirqd/222:20:002
2601899330,5cyclictest121rcu_preempt21:45:232
26017993327,4cyclictest25-21ksoftirqd/121:18:511
26017993327,4cyclictest25-21ksoftirqd/120:39:151
26016993327,4cyclictest9-21ksoftirqd/000:02:210
136591330,0ptp4l401ktimersoftd/319:23:263
26019993226,4cyclictest41-21ksoftirqd/323:02:393
26019993226,4cyclictest41-21ksoftirqd/321:58:123
26019993226,4cyclictest41-21ksoftirqd/300:28:363
26019993226,4cyclictest41-21ksoftirqd/300:19:173
2601899321,3cyclictest121rcu_preempt19:45:152
26017993227,3cyclictest25-21ksoftirqd/121:25:121
26017993226,4cyclictest25-21ksoftirqd/123:24:521
26017993226,4cyclictest25-21ksoftirqd/120:02:121
26017993226,4cyclictest25-21ksoftirqd/119:21:041
26017993225,5cyclictest25-21ksoftirqd/120:19:131
26017993225,4cyclictest25-21ksoftirqd/100:31:031
26016993226,4cyclictest9-21ksoftirqd/023:16:440
26016993226,4cyclictest9-21ksoftirqd/022:39:210
26016993226,4cyclictest9-21ksoftirqd/019:19:030
26016993226,4cyclictest9-21ksoftirqd/000:08:020
136591320,0ptp4l401ktimersoftd/322:40:553
136591320,0ptp4l401ktimersoftd/300:23:343
26019993126,3cyclictest41-21ksoftirqd/322:20:123
26019993125,4cyclictest41-21ksoftirqd/322:56:213
26019993125,4cyclictest41-21ksoftirqd/321:32:333
26019993125,4cyclictest41-21ksoftirqd/321:14:083
26017993127,3cyclictest25-21ksoftirqd/100:11:241
26017993125,4cyclictest25-21ksoftirqd/123:51:311
26017993125,4cyclictest25-21ksoftirqd/123:49:101
26017993125,4cyclictest25-21ksoftirqd/122:55:121
26017993125,4cyclictest25-21ksoftirqd/121:21:561
26017993125,4cyclictest25-21ksoftirqd/119:49:491
26017993125,4cyclictest25-21ksoftirqd/119:17:231
26017993125,4cyclictest25-21ksoftirqd/119:10:451
26017993125,4cyclictest25-21ksoftirqd/100:19:071
26016993126,3cyclictest526-21rs:main0
26016993125,4cyclictest9-21ksoftirqd/023:47:500
26016993125,4cyclictest9-21ksoftirqd/023:14:040
26016993125,4cyclictest9-21ksoftirqd/021:44:120
26016993125,4cyclictest9-21ksoftirqd/021:32:540
26016993125,4cyclictest9-21ksoftirqd/019:32:390
26016993124,4cyclictest9-21ksoftirqd/022:10:120
26016993124,4cyclictest9-21ksoftirqd/022:05:070
26016993124,4cyclictest9-21ksoftirqd/021:16:570
136591310,0ptp4l401ktimersoftd/322:45:183
136591310,0ptp4l401ktimersoftd/320:19:503
26019993025,3cyclictest41-21ksoftirqd/321:25:133
26019993024,4cyclictest41-21ksoftirqd/323:33:323
26019993024,4cyclictest41-21ksoftirqd/319:28:413
26019993024,4cyclictest41-21ksoftirqd/300:05:103
26017993024,4cyclictest25-21ksoftirqd/123:06:061
26017993024,4cyclictest25-21ksoftirqd/100:09:451
26016993024,4cyclictest9-21ksoftirqd/023:58:330
26016993024,4cyclictest9-21ksoftirqd/023:35:380
26016993024,4cyclictest9-21ksoftirqd/023:31:370
26016993024,4cyclictest9-21ksoftirqd/020:31:040
26016993024,4cyclictest9-21ksoftirqd/020:31:040
26016993024,4cyclictest9-21ksoftirqd/020:06:410
26016993024,4cyclictest9-21ksoftirqd/000:13:530
26016993023,5cyclictest9-21ksoftirqd/000:28:250
136591300,0ptp4l401ktimersoftd/300:37:113
26019992923,4cyclictest41-21ksoftirqd/322:03:263
26019992923,4cyclictest41-21ksoftirqd/321:46:493
26019992923,4cyclictest41-21ksoftirqd/320:29:343
26019992923,4cyclictest41-21ksoftirqd/320:01:023
26019992918,9cyclictest41-21ksoftirqd/323:40:033
26017992924,3cyclictest25-21ksoftirqd/122:05:101
26017992924,3cyclictest25-21ksoftirqd/121:46:551
26017992924,3cyclictest25-21ksoftirqd/120:13:471
26017992923,4cyclictest25-21ksoftirqd/123:44:131
26017992923,4cyclictest25-21ksoftirqd/122:12:391
26017992923,4cyclictest25-21ksoftirqd/121:58:051
26017992923,4cyclictest25-21ksoftirqd/121:37:041
26017992923,4cyclictest25-21ksoftirqd/121:31:061
26017992923,4cyclictest25-21ksoftirqd/120:53:561
26017992923,4cyclictest25-21ksoftirqd/120:45:451
26017992923,4cyclictest25-21ksoftirqd/120:20:581
26017992923,4cyclictest25-21ksoftirqd/119:35:411
26017992923,4cyclictest25-21ksoftirqd/119:32:121
26017992923,4cyclictest25-21ksoftirqd/119:27:501
26017992923,4cyclictest25-21ksoftirqd/100:02:311
26016992924,3cyclictest9-21ksoftirqd/023:50:100
26016992924,3cyclictest9-21ksoftirqd/023:44:160
26016992924,3cyclictest9-21ksoftirqd/023:27:240
26016992924,3cyclictest9-21ksoftirqd/023:27:240
26016992923,4cyclictest9-21ksoftirqd/023:24:310
26016992923,4cyclictest9-21ksoftirqd/023:04:050
26016992923,4cyclictest9-21ksoftirqd/020:28:150
26016992923,4cyclictest9-21ksoftirqd/020:10:020
26016992923,4cyclictest9-21ksoftirqd/019:55:380
26016992923,4cyclictest9-21ksoftirqd/000:34:230
136591290,9ptp4l401ktimersoftd/323:37:533
136591290,0ptp4l401ktimersoftd/323:46:143
136591290,0ptp4l401ktimersoftd/322:50:423
136591290,0ptp4l401ktimersoftd/322:11:103
136591290,0ptp4l401ktimersoftd/320:40:433
26019992823,3cyclictest41-21ksoftirqd/300:14:373
26019992822,4cyclictest41-21ksoftirqd/321:42:403
26019992822,4cyclictest41-21ksoftirqd/320:06:483
26019992822,4cyclictest41-21ksoftirqd/319:40:083
26017992823,3cyclictest25-21ksoftirqd/121:06:521
26017992823,3cyclictest25-21ksoftirqd/120:08:481
26017992823,3cyclictest25-21ksoftirqd/100:29:221
26017992822,4cyclictest25-21ksoftirqd/123:59:101
26017992822,4cyclictest25-21ksoftirqd/123:02:371
26017992822,4cyclictest25-21ksoftirqd/100:39:061
26016992823,3cyclictest9-21ksoftirqd/022:41:090
26016992823,3cyclictest9-21ksoftirqd/020:48:490
26016992823,3cyclictest9-21ksoftirqd/019:25:410
26016992823,3cyclictest9-21ksoftirqd/019:14:240
26016992822,4cyclictest9-21ksoftirqd/021:47:300
26016992822,4cyclictest9-21ksoftirqd/021:25:040
26016992822,4cyclictest9-21ksoftirqd/020:02:480
26016992822,4cyclictest9-21ksoftirqd/019:23:330
26016992822,4cyclictest9-21ksoftirqd/000:36:510
26016992822,4cyclictest9-21ksoftirqd/000:15:380
26016992821,5cyclictest9-21ksoftirqd/020:40:000
26016992821,4cyclictest9-21ksoftirqd/022:48:080
136591280,0ptp4l401ktimersoftd/322:33:073
26019992722,3cyclictest41-21ksoftirqd/323:29:453
26019992722,3cyclictest41-21ksoftirqd/323:29:453
26019992722,3cyclictest41-21ksoftirqd/320:54:553
26019992721,4cyclictest41-21ksoftirqd/321:53:073
26019992721,4cyclictest41-21ksoftirqd/320:12:423
26019992721,4cyclictest41-21ksoftirqd/319:59:583
26017992722,3cyclictest25-21ksoftirqd/122:01:461
26017992722,3cyclictest25-21ksoftirqd/120:34:541
26017992722,3cyclictest25-21ksoftirqd/120:34:541
26017992721,4cyclictest25-21ksoftirqd/122:51:181
26017992721,4cyclictest25-21ksoftirqd/122:36:541
26017992721,4cyclictest25-21ksoftirqd/122:21:091
26017992721,4cyclictest25-21ksoftirqd/120:43:331
26017992721,4cyclictest25-21ksoftirqd/120:29:411
26016992722,3cyclictest9-21ksoftirqd/022:31:230
26016992722,3cyclictest9-21ksoftirqd/000:20:590
26016992721,4cyclictest9-21ksoftirqd/022:16:230
26016992721,4cyclictest9-21ksoftirqd/021:57:410
26016992721,4cyclictest9-21ksoftirqd/021:50:070
136591270,9ptp4l0-21swapper/300:30:583
136591270,0ptp4l401ktimersoftd/321:35:343
136591270,0ptp4l401ktimersoftd/319:15:493
26019992621,3cyclictest41-21ksoftirqd/323:52:073
26019992621,3cyclictest41-21ksoftirqd/323:09:343
26019992620,4cyclictest41-21ksoftirqd/321:00:403
26019992620,4cyclictest41-21ksoftirqd/319:37:353
26017992621,3cyclictest25-21ksoftirqd/122:26:581
26017992621,3cyclictest25-21ksoftirqd/100:24:511
26017992620,4cyclictest25-21ksoftirqd/123:33:341
26017992620,4cyclictest25-21ksoftirqd/119:52:051
26017992620,3cyclictest25-21ksoftirqd/119:40:311
26016992620,4cyclictest9-21ksoftirqd/022:51:560
26016992620,4cyclictest9-21ksoftirqd/022:20:360
26016992620,4cyclictest9-21ksoftirqd/021:02:130
26016992620,4cyclictest9-21ksoftirqd/019:50:410
26019992520,3cyclictest41-21ksoftirqd/319:52:583
26019992519,4cyclictest41-21ksoftirqd/323:24:423
26019992519,4cyclictest41-21ksoftirqd/321:24:063
26017992520,3cyclictest25-21ksoftirqd/122:33:561
26017992519,4cyclictest25-21ksoftirqd/121:52:451
26017992519,4cyclictest25-21ksoftirqd/121:02:501
26017992519,3cyclictest25-21ksoftirqd/120:56:591
26017992519,3cyclictest25-21ksoftirqd/120:56:591
26016992520,3cyclictest9-21ksoftirqd/022:59:150
26016992520,3cyclictest9-21ksoftirqd/019:39:330
136591250,1ptp4l401ktimersoftd/319:45:143
136591250,0ptp4l401ktimersoftd/322:09:073
26019992418,4cyclictest41-21ksoftirqd/321:16:283
26019992418,4cyclictest41-21ksoftirqd/320:38:293
26017992419,3cyclictest25-21ksoftirqd/121:40:371
26017992419,3cyclictest25-21ksoftirqd/119:58:191
26017992418,4cyclictest25-21ksoftirqd/121:14:051
26016992419,3cyclictest9-21ksoftirqd/020:20:430
26016992418,4cyclictest9-21ksoftirqd/020:41:390
26016992418,4cyclictest9-21ksoftirqd/020:18:440
136591240,1ptp4l401ktimersoftd/322:25:023
136591240,0ptp4l401ktimersoftd/322:17:203
26017992318,3cyclictest25-21ksoftirqd/123:36:181
26017992318,3cyclictest25-21ksoftirqd/123:18:341
26017992318,3cyclictest25-21ksoftirqd/122:19:321
26017992317,4cyclictest25-21ksoftirqd/123:29:451
26017992317,4cyclictest25-21ksoftirqd/123:29:451
26016992318,3cyclictest9-21ksoftirqd/021:37:440
26016992318,3cyclictest9-21ksoftirqd/019:40:050
136591230,0ptp4l401ktimersoftd/323:15:233
136591230,0ptp4l401ktimersoftd/321:09:303
26017992217,3cyclictest25-21ksoftirqd/123:12:481
26017992216,4cyclictest25-21ksoftirqd/122:49:251
26016992216,4cyclictest9-21ksoftirqd/020:55:350
26016992216,4cyclictest9-21ksoftirqd/020:55:350
26016992116,3cyclictest9-21ksoftirqd/021:24:330
26016992116,3cyclictest9-21ksoftirqd/021:05:200
26016992015,3cyclictest9-21ksoftirqd/022:25:510
26016992015,3cyclictest9-21ksoftirqd/020:55:000
26017991913,4cyclictest25-21ksoftirqd/122:43:481
26016991913,4cyclictest9-21ksoftirqd/021:14:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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