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2026-03-18 - 09:30
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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 rackdslot3.osadl.org (updated Wed Mar 18, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491204170,23phc2sys0-21swapper/319:06:593
106502203171,21sleep20-21swapper/219:07:372
106262202169,22sleep00-21swapper/019:07:190
105962202169,22sleep10-21swapper/119:06:551
1083428263,11sleep10-21swapper/119:10:001
139391610,1ptp4l401ktimersoftd/321:08:233
10982570,4sleep31100-21latency19:55:193
139391560,1ptp4l401ktimersoftd/322:01:273
211642550,7sleep01112599cyclictest20:35:270
57898440,8rtkit-daemon0-21swapper/100:25:391
139391440,0ptp4l401ktimersoftd/319:34:593
57898430,7rtkit-daemon0-21swapper/120:38:331
139391430,0ptp4l401ktimersoftd/320:41:023
11125994314,7cyclictest9-21ksoftirqd/023:50:000
139391420,1ptp4l401ktimersoftd/320:56:053
139391420,0ptp4l401ktimersoftd/323:56:113
139391420,0ptp4l401ktimersoftd/323:47:073
139391420,0ptp4l401ktimersoftd/323:08:313
139391420,0ptp4l401ktimersoftd/319:50:303
11125994236,3cyclictest9-21ksoftirqd/021:20:000
139391410,1ptp4l401ktimersoftd/321:13:043
139391410,0ptp4l401ktimersoftd/323:30:343
139391410,0ptp4l401ktimersoftd/322:14:003
1112599415,7cyclictest9-21ksoftirqd/019:45:000
139391400,1ptp4l401ktimersoftd/319:41:103
11126994035,3cyclictest25-21ksoftirqd/120:25:001
1112599405,3cyclictest9-21ksoftirqd/019:50:160
11125994034,3cyclictest9-21ksoftirqd/022:15:000
11126993934,3cyclictest22820-21cron19:35:001
11127993833,3cyclictest33-21ksoftirqd/221:30:002
11126993833,3cyclictest25-21ksoftirqd/122:35:001
1112599386,4cyclictest9-21ksoftirqd/020:20:240
1112599386,3cyclictest9-21ksoftirqd/023:55:180
11125993834,2cyclictest9-21ksoftirqd/022:45:000
1112599380,3cyclictest9-21ksoftirqd/019:25:170
57898370,5rtkit-daemon0-21swapper/122:26:161
1112599377,7cyclictest9-21ksoftirqd/021:34:590
1112599373,3cyclictest9-21ksoftirqd/019:10:200
11125993732,3cyclictest9-21ksoftirqd/022:55:010
11125993732,2cyclictest9-21ksoftirqd/022:25:010
1112599371,2cyclictest9-21ksoftirqd/000:00:240
1112599370,3cyclictest9-21ksoftirqd/020:50:270
1112599370,2cyclictest9-21ksoftirqd/023:10:230
57898360,4rtkit-daemon26669-21gpgv20:50:011
57898360,2rtkit-daemon0-21swapper/022:08:360
139391360,0ptp4l401ktimersoftd/322:56:153
1112799368,26cyclictest686-21kworker/2:223:10:232
11127993630,4cyclictest33-21ksoftirqd/223:37:302
11127993630,4cyclictest33-21ksoftirqd/222:14:302
11126993631,3cyclictest25-21ksoftirqd/122:11:071
11126993630,4cyclictest25-21ksoftirqd/100:01:081
11125993631,3cyclictest9-21ksoftirqd/022:00:250
11125993631,3cyclictest9-21ksoftirqd/021:05:260
1112599361,3cyclictest121rcu_preempt23:25:260
57898350,2rtkit-daemon0-21swapper/122:55:211
1260023529,2sleep233-21ksoftirqd/223:40:242
11128993529,4cyclictest41-21ksoftirqd/322:39:433
11128993529,4cyclictest41-21ksoftirqd/321:46:333
11128993529,4cyclictest41-21ksoftirqd/320:10:323
11128993529,4cyclictest41-21ksoftirqd/319:47:363
11128993529,4cyclictest41-21ksoftirqd/300:32:433
11127993530,3cyclictest33-21ksoftirqd/221:57:492
11127993529,4cyclictest33-21ksoftirqd/221:53:202
11127993529,4cyclictest33-21ksoftirqd/221:32:302
11127993529,4cyclictest33-21ksoftirqd/219:41:222
11126993531,2cyclictest25-21ksoftirqd/119:40:001
11126993530,3cyclictest25-21ksoftirqd/119:15:121
11126993530,3cyclictest25-21ksoftirqd/100:20:011
11126993529,4cyclictest25-21ksoftirqd/123:48:201
11126993529,4cyclictest25-21ksoftirqd/121:44:281
11126993529,4cyclictest25-21ksoftirqd/121:05:411
11126993529,4cyclictest25-21ksoftirqd/119:49:551
11126993529,4cyclictest25-21ksoftirqd/100:37:381
11126993528,4cyclictest25-21ksoftirqd/100:22:301
1112599356,3cyclictest9-21ksoftirqd/019:35:220
1112599355,2cyclictest121rcu_preempt00:05:130
11125993532,2cyclictest9-21ksoftirqd/000:21:300
11125993531,2cyclictest9-21ksoftirqd/019:15:190
11125993530,3cyclictest9-21ksoftirqd/023:40:120
11125993530,3cyclictest9-21ksoftirqd/022:30:280
11125993530,3cyclictest9-21ksoftirqd/020:45:460
11125993530,2cyclictest9-21ksoftirqd/022:20:000
11125993529,4cyclictest9-21ksoftirqd/021:10:050
11125993529,4cyclictest9-21ksoftirqd/020:14:370
11125993529,3cyclictest9-21ksoftirqd/021:50:010
11125993528,4cyclictest9-21ksoftirqd/000:10:170
1112599352,3cyclictest9-21ksoftirqd/020:15:260
1112599351,7cyclictest9-21ksoftirqd/021:40:130
1112599351,4cyclictest9-21ksoftirqd/020:55:240
1112599351,2cyclictest121rcu_preempt21:00:200
11128993429,3cyclictest41-21ksoftirqd/319:15:113
11128993428,4cyclictest41-21ksoftirqd/323:18:583
11128993428,4cyclictest41-21ksoftirqd/320:24:553
11128993428,4cyclictest41-21ksoftirqd/319:26:433
11128993427,4cyclictest41-21ksoftirqd/322:54:543
11128993427,4cyclictest41-21ksoftirqd/319:36:503
11127993429,3cyclictest33-21ksoftirqd/221:20:002
11127993428,4cyclictest33-21ksoftirqd/220:48:052
11127993428,4cyclictest33-21ksoftirqd/220:33:162
11127993428,4cyclictest33-21ksoftirqd/220:18:172
11127993428,4cyclictest33-21ksoftirqd/219:45:562
11126993429,3cyclictest25-21ksoftirqd/123:32:331
11126993429,3cyclictest25-21ksoftirqd/122:35:101
11126993428,4cyclictest25-21ksoftirqd/123:26:541
11126993428,4cyclictest25-21ksoftirqd/121:47:371
11126993428,4cyclictest25-21ksoftirqd/121:14:511
11126993428,4cyclictest25-21ksoftirqd/119:59:101
11126993427,5cyclictest25-21ksoftirqd/120:43:071
11126993427,4cyclictest25-21ksoftirqd/121:22:031
11126993427,4cyclictest25-21ksoftirqd/120:59:391
1112599343,3cyclictest9-21ksoftirqd/023:05:220
1112599343,3cyclictest9-21ksoftirqd/022:35:180
1112599343,2cyclictest121rcu_preempt23:35:200
11125993430,2cyclictest9-21ksoftirqd/022:55:120
11125993430,2cyclictest9-21ksoftirqd/022:00:000
11125993429,3cyclictest9-21ksoftirqd/021:50:190
11125993428,3cyclictest9-21ksoftirqd/022:25:140
11125993428,3cyclictest9-21ksoftirqd/000:35:190
1112599341,6cyclictest9-21ksoftirqd/000:25:230
139391330,0ptp4l401ktimersoftd/323:00:273
11128993328,3cyclictest41-21ksoftirqd/320:48:553
11128993327,4cyclictest41-21ksoftirqd/322:05:083
11128993327,4cyclictest41-21ksoftirqd/321:29:063
11128993327,4cyclictest41-21ksoftirqd/320:38:163
11127993329,3cyclictest33-21ksoftirqd/219:22:322
11127993329,2cyclictest23473-21fschecks_count19:35:142
11127993328,3cyclictest33-21ksoftirqd/223:15:122
11127993328,3cyclictest33-21ksoftirqd/220:27:332
11127993328,3cyclictest33-21ksoftirqd/219:19:172
11127993327,4cyclictest33-21ksoftirqd/223:51:552
11127993327,4cyclictest33-21ksoftirqd/223:46:402
11127993327,4cyclictest33-21ksoftirqd/222:05:352
11127993327,4cyclictest33-21ksoftirqd/220:56:562
11127993327,4cyclictest33-21ksoftirqd/220:10:302
11127993327,4cyclictest33-21ksoftirqd/219:59:272
11127993327,4cyclictest33-21ksoftirqd/219:54:422
11127993327,4cyclictest33-21ksoftirqd/219:10:412
11126993328,3cyclictest25-21ksoftirqd/123:23:011
11126993328,3cyclictest25-21ksoftirqd/122:50:011
11126993328,3cyclictest25-21ksoftirqd/100:31:491
11126993327,4cyclictest25-21ksoftirqd/122:02:341
11126993327,4cyclictest25-21ksoftirqd/120:31:471
11126993327,4cyclictest25-21ksoftirqd/120:28:501
11126993326,5cyclictest25-21ksoftirqd/121:18:461
11126993326,4cyclictest25-21ksoftirqd/123:07:081
1112599337,9cyclictest9-21ksoftirqd/021:25:110
1112599334,3cyclictest121rcu_preempt23:30:180
11125993329,3cyclictest9-21ksoftirqd/021:20:200
11125993329,3cyclictest9-21ksoftirqd/019:35:000
11125993329,2cyclictest1505-21sed23:20:000
11125993328,2cyclictest9-21ksoftirqd/020:04:590
139391320,0ptp4l401ktimersoftd/300:21:313
139391320,0ptp4l401ktimersoftd/300:15:483
11128993227,3cyclictest41-21ksoftirqd/321:23:093
11128993227,3cyclictest41-21ksoftirqd/319:20:113
11128993226,4cyclictest41-21ksoftirqd/321:54:373
11127993228,3cyclictest33-21ksoftirqd/200:22:332
11127993227,3cyclictest33-21ksoftirqd/221:45:122
11127993227,3cyclictest33-21ksoftirqd/221:05:162
11127993226,4cyclictest33-21ksoftirqd/223:55:432
11127993226,4cyclictest33-21ksoftirqd/223:29:152
11127993226,4cyclictest33-21ksoftirqd/220:44:522
11127993226,4cyclictest33-21ksoftirqd/220:21:302
11127993226,4cyclictest33-21ksoftirqd/200:34:222
11127993225,4cyclictest33-21ksoftirqd/200:27:322
11126993227,3cyclictest25-21ksoftirqd/123:37:051
11126993226,4cyclictest25-21ksoftirqd/123:51:011
11126993226,4cyclictest25-21ksoftirqd/123:12:011
1112599325,3cyclictest9-21ksoftirqd/000:15:230
1112599324,2cyclictest121rcu_preempt21:40:000
1112599324,2cyclictest121rcu_preempt00:30:290
1112599323,2cyclictest9-21ksoftirqd/023:00:200
11125993228,2cyclictest9-21ksoftirqd/023:25:010
11125993227,3cyclictest9-21ksoftirqd/020:40:240
11125993227,3cyclictest9-21ksoftirqd/020:00:010
11125993226,4cyclictest9-21ksoftirqd/022:49:460
1112599322,2cyclictest9-21ksoftirqd/023:50:150
1112599322,2cyclictest121rcu_preempt20:25:170
1112599321,3cyclictest9-21ksoftirqd/020:30:240
139391310,0ptp4l401ktimersoftd/320:34:013
139391310,0ptp4l401ktimersoftd/320:09:003
11128993126,3cyclictest41-21ksoftirqd/323:11:333
11128993126,3cyclictest41-21ksoftirqd/322:20:103
11128993125,4cyclictest41-21ksoftirqd/323:37:393
11128993125,4cyclictest41-21ksoftirqd/322:27:513
11128993125,4cyclictest41-21ksoftirqd/321:32:103
11128993125,4cyclictest41-21ksoftirqd/320:28:083
11128993125,4cyclictest41-21ksoftirqd/300:07:193
11127993127,3cyclictest33-21ksoftirqd/221:02:332
11127993126,3cyclictest33-21ksoftirqd/223:09:302
11127993126,3cyclictest33-21ksoftirqd/222:34:112
11127993126,3cyclictest33-21ksoftirqd/221:35:332
11127993125,4cyclictest33-21ksoftirqd/223:24:222
11127993125,4cyclictest33-21ksoftirqd/220:09:302
11127993125,4cyclictest33-21ksoftirqd/200:08:072
11126993126,3cyclictest25-21ksoftirqd/120:05:351
11126993126,3cyclictest25-21ksoftirqd/119:28:381
11126993125,4cyclictest25-21ksoftirqd/121:51:061
1112599314,3cyclictest121rcu_preempt19:20:210
1112599313,2cyclictest121rcu_preempt20:05:150
139391300,0ptp4l401ktimersoftd/323:53:193
139391300,0ptp4l401ktimersoftd/320:00:063
139391300,0ptp4l401ktimersoftd/300:04:223
11128993024,4cyclictest41-21ksoftirqd/322:33:363
11127993024,4cyclictest33-21ksoftirqd/223:02:522
11127993024,4cyclictest33-21ksoftirqd/222:50:362
11127993024,4cyclictest33-21ksoftirqd/221:22:152
11126993025,3cyclictest25-21ksoftirqd/123:45:001
11126993025,3cyclictest25-21ksoftirqd/121:58:011
11126993024,4cyclictest25-21ksoftirqd/123:19:281
11126993024,4cyclictest25-21ksoftirqd/121:30:481
11126993024,4cyclictest25-21ksoftirqd/121:26:081
11126993024,4cyclictest25-21ksoftirqd/119:44:531
1112599303,3cyclictest9-21ksoftirqd/019:45:270
139391290,0ptp4l401ktimersoftd/323:20:493
139391290,0ptp4l401ktimersoftd/322:40:393
139391290,0ptp4l401ktimersoftd/321:01:383
11128992924,3cyclictest41-21ksoftirqd/320:52:123
11128992924,3cyclictest41-21ksoftirqd/300:11:293
11128992923,4cyclictest41-21ksoftirqd/322:48:373
11128992923,4cyclictest41-21ksoftirqd/300:38:203
11127992924,3cyclictest33-21ksoftirqd/223:34:192
11127992924,3cyclictest33-21ksoftirqd/222:56:122
11127992923,4cyclictest33-21ksoftirqd/222:47:272
11127992923,4cyclictest33-21ksoftirqd/222:16:112
11127992923,4cyclictest33-21ksoftirqd/220:01:592
11127992923,4cyclictest33-21ksoftirqd/200:02:132
11126992924,3cyclictest25-21ksoftirqd/122:50:541
11126992924,3cyclictest25-21ksoftirqd/122:42:111
11126992924,3cyclictest25-21ksoftirqd/120:10:421
11126992924,2cyclictest25-21ksoftirqd/123:00:131
11126992923,4cyclictest25-21ksoftirqd/120:02:521
11126992923,4cyclictest25-21ksoftirqd/119:53:321
11126992923,4cyclictest25-21ksoftirqd/100:15:001
11126992923,4cyclictest25-21ksoftirqd/100:05:331
139391280,7ptp4l401ktimersoftd/300:29:513
11128992823,3cyclictest41-21ksoftirqd/323:40:103
11128992823,3cyclictest41-21ksoftirqd/319:14:263
11128992822,4cyclictest41-21ksoftirqd/321:41:253
11128992822,4cyclictest41-21ksoftirqd/321:38:043
11127992822,4cyclictest33-21ksoftirqd/222:38:012
11127992822,4cyclictest33-21ksoftirqd/221:13:402
11127992822,4cyclictest33-21ksoftirqd/200:15:492
11126992823,3cyclictest25-21ksoftirqd/122:22:111
11126992822,4cyclictest25-21ksoftirqd/123:57:191
11126992822,4cyclictest25-21ksoftirqd/122:18:501
11126992822,4cyclictest25-21ksoftirqd/119:23:081
11128992722,3cyclictest41-21ksoftirqd/322:15:153
11128992722,3cyclictest41-21ksoftirqd/321:56:173
11127992722,3cyclictest33-21ksoftirqd/222:41:282
11127992722,3cyclictest33-21ksoftirqd/222:04:102
11127992722,3cyclictest33-21ksoftirqd/220:38:122
11126992722,3cyclictest25-21ksoftirqd/120:53:041
139391260,0ptp4l401ktimersoftd/320:18:113
11128992619,4cyclictest41-21ksoftirqd/323:29:123
11127992621,3cyclictest33-21ksoftirqd/219:30:092
11127992620,4cyclictest33-21ksoftirqd/221:42:442
11126992620,4cyclictest25-21ksoftirqd/121:35:051
11126992620,4cyclictest25-21ksoftirqd/121:03:321
139391250,1ptp4l401ktimersoftd/321:15:103
1112799244,17cyclictest20472-21latency_hist19:29:592
11127992419,3cyclictest33-21ksoftirqd/222:29:502
11127992419,3cyclictest33-21ksoftirqd/220:54:512
11127992419,3cyclictest33-21ksoftirqd/200:39:482
11127992418,4cyclictest33-21ksoftirqd/200:12:162
11126992418,4cyclictest25-21ksoftirqd/120:18:071
11126992318,3cyclictest25-21ksoftirqd/122:08:061
1112799211,17cyclictest7253-21latency_hist22:25:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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