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2026-04-05 - 14:05
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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 Sun Apr 05, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
144862206172,22sleep10-21swapper/119:09:531
139491204170,23phc2sys0-21swapper/319:06:023
144852203170,22sleep00-21swapper/019:09:520
144872202169,22sleep20-21swapper/219:09:542
456321410,3sleep31479199cyclictest22:10:183
1394918363,11phc2sys0-21swapper/319:10:013
1479099541,2cyclictest71422sleep221:09:192
139391530,1ptp4l401ktimersoftd/321:31:223
135762530,2sleep30-21swapper/321:20:243
1479099514,27cyclictest23848-21taskset19:27:222
1479099490,3cyclictest28746-21taskset19:39:272
139391460,1ptp4l401ktimersoftd/321:19:553
14791994539,3cyclictest3394-21cron22:10:013
139391450,1ptp4l401ktimersoftd/322:01:203
1478899448,22cyclictest23494-21seq21:40:590
14788994413,17cyclictest5821-21load23:20:200
139391440,0ptp4l401ktimersoftd/321:26:593
1478899438,25cyclictest6822-21seq21:05:480
1478899438,22cyclictest19950-21seq22:41:320
139391430,0ptp4l401ktimersoftd/320:59:543
139391430,0ptp4l401ktimersoftd/320:54:363
14791994129,9cyclictest41-21ksoftirqd/321:00:213
1479099410,1cyclictest0-21swapper/220:32:552
139391410,0ptp4l401ktimersoftd/320:15:133
134391410,2getstats0-21swapper/320:45:233
134391410,2getstats0-21swapper/320:45:223
1479199406,3cyclictest41-21ksoftirqd/322:55:003
14791994031,7cyclictest27327-21cron23:00:013
1478899400,4cyclictest26027-21seq21:48:010
1478899391,3cyclictest0-21swapper/020:44:410
139391390,1ptp4l401ktimersoftd/319:37:453
1479199387,4cyclictest41-21ksoftirqd/319:15:173
1479199385,2cyclictest41-21ksoftirqd/300:40:003
1479199383,8cyclictest41-21ksoftirqd/323:35:013
1479099382,22cyclictest0-21swapper/223:26:382
1479199378,4cyclictest41-21ksoftirqd/300:20:223
1479199376,2cyclictest41-21ksoftirqd/300:00:193
1479199375,3cyclictest41-21ksoftirqd/322:15:193
1479199375,3cyclictest41-21ksoftirqd/320:15:003
1479199375,3cyclictest41-21ksoftirqd/300:30:283
1479199375,3cyclictest41-21ksoftirqd/300:30:283
1479199375,3cyclictest41-21ksoftirqd/300:15:003
1479199374,3cyclictest41-21ksoftirqd/323:20:153
1479199374,3cyclictest41-21ksoftirqd/322:45:173
14791993733,3cyclictest41-21ksoftirqd/319:50:003
14791993732,3cyclictest41-21ksoftirqd/323:49:593
14791993732,3cyclictest41-21ksoftirqd/300:15:293
1479099378,17cyclictest1317-21runrttasks21:15:082
14790993724,11cyclictest33-21ksoftirqd/221:30:122
1479099372,20cyclictest28788-21/usr/sbin/munin21:55:172
1479099371,23cyclictest0-21swapper/220:37:132
14789993731,4cyclictest25-21ksoftirqd/120:41:511
14788993732,3cyclictest9-21ksoftirqd/000:24:590
1479199365,4cyclictest41-21ksoftirqd/322:25:213
14791993631,3cyclictest41-21ksoftirqd/323:15:103
14791993631,3cyclictest41-21ksoftirqd/321:44:593
14791993631,3cyclictest41-21ksoftirqd/320:30:263
14791993631,3cyclictest41-21ksoftirqd/319:50:133
14791993630,4cyclictest41-21ksoftirqd/323:10:103
14791993630,4cyclictest41-21ksoftirqd/322:39:133
14791993630,4cyclictest41-21ksoftirqd/319:57:483
1479199362,4cyclictest41-21ksoftirqd/323:10:013
14790993631,3cyclictest33-21ksoftirqd/200:05:062
1479099362,21cyclictest9286-21chrt21:11:312
14789993632,3cyclictest25-21ksoftirqd/119:35:011
14789993631,3cyclictest25-21ksoftirqd/123:01:391
14789993630,4cyclictest25-21ksoftirqd/123:20:071
14789993630,4cyclictest25-21ksoftirqd/122:42:571
14789993630,4cyclictest25-21ksoftirqd/122:26:081
14789993630,4cyclictest25-21ksoftirqd/122:11:491
14789993630,4cyclictest25-21ksoftirqd/120:13:291
14788993630,4cyclictest9-21ksoftirqd/021:28:080
14788993614,19cyclictest30959-21sh22:00:010
57898350,2rtkit-daemon0-21swapper/122:02:261
57898350,2rtkit-daemon0-21swapper/121:22:501
57898350,2rtkit-daemon0-21swapper/100:06:291
1479199355,6cyclictest41-21ksoftirqd/321:55:143
1479199354,3cyclictest41-21ksoftirqd/321:50:263
1479199354,3cyclictest41-21ksoftirqd/320:10:003
1479199354,3cyclictest41-21ksoftirqd/320:10:003
1479199354,2cyclictest41-21ksoftirqd/319:25:173
14791993531,3cyclictest41-21ksoftirqd/321:40:013
14791993531,3cyclictest41-21ksoftirqd/300:00:003
14791993530,3cyclictest41-21ksoftirqd/321:10:203
14791993530,3cyclictest41-21ksoftirqd/320:27:283
14791993530,3cyclictest41-21ksoftirqd/319:30:193
14791993530,3cyclictest41-21ksoftirqd/300:25:193
14791993529,4cyclictest41-21ksoftirqd/322:21:293
14791993529,4cyclictest41-21ksoftirqd/320:22:473
1479199350,3cyclictest41-21ksoftirqd/321:45:233
14790993529,4cyclictest33-21ksoftirqd/220:12:272
14790993529,4cyclictest33-21ksoftirqd/200:25:452
1479099351,20cyclictest5866-21taskset19:58:232
1479099350,3cyclictest11964-1kworker/2:0H23:25:002
1479099350,22cyclictest3531-21taskset19:53:502
14789993530,3cyclictest25-21ksoftirqd/123:10:011
14789993529,4cyclictest25-21ksoftirqd/120:56:541
14789993529,4cyclictest25-21ksoftirqd/119:23:271
14789993529,4cyclictest25-21ksoftirqd/119:17:251
14788993530,3cyclictest9-21ksoftirqd/000:19:590
14788993529,4cyclictest9-21ksoftirqd/023:42:530
14788993529,4cyclictest9-21ksoftirqd/022:45:570
14788993529,4cyclictest9-21ksoftirqd/019:48:410
14788993528,5cyclictest9-21ksoftirqd/000:30:510
14788993528,5cyclictest9-21ksoftirqd/000:30:510
14788993528,4cyclictest9-21ksoftirqd/022:35:420
1479199343,3cyclictest41-21ksoftirqd/320:00:153
14791993429,3cyclictest41-21ksoftirqd/300:05:153
14791993428,4cyclictest41-21ksoftirqd/323:51:183
14791993426,6cyclictest41-21ksoftirqd/321:05:143
1479199342,3cyclictest41-21ksoftirqd/322:35:003
14790993428,4cyclictest33-21ksoftirqd/223:00:552
14790993428,4cyclictest33-21ksoftirqd/222:40:302
14790993428,4cyclictest33-21ksoftirqd/221:04:382
14790993428,4cyclictest33-21ksoftirqd/220:23:542
14790993428,4cyclictest33-21ksoftirqd/200:24:072
14790993420,12cyclictest261802sleep221:50:002
1479099341,20cyclictest32225-21taskset20:53:472
1479099341,20cyclictest21070-21taskset23:51:182
1479099341,19cyclictest0-21swapper/200:04:372
1479099341,18cyclictest0-21swapper/219:48:032
1479099340,3cyclictest11964-1kworker/2:0H00:00:012
1479099340,21cyclictest15203-21runrttasks22:31:392
14789993429,3cyclictest25-21ksoftirqd/121:28:241
14789993428,4cyclictest25-21ksoftirqd/123:49:321
14789993428,4cyclictest25-21ksoftirqd/122:34:421
14789993428,4cyclictest25-21ksoftirqd/121:05:331
14789993428,4cyclictest25-21ksoftirqd/119:53:161
14789993428,4cyclictest25-21ksoftirqd/100:28:121
14789993428,4cyclictest25-21ksoftirqd/100:01:111
14789993426,5cyclictest25-21ksoftirqd/122:20:071
14788993429,3cyclictest9-21ksoftirqd/023:14:590
14788993429,3cyclictest9-21ksoftirqd/022:55:100
14788993429,3cyclictest9-21ksoftirqd/021:22:200
14788993415,16cyclictest12567-21mailstats20:10:240
14788993412,19cyclictest22388-21grep19:25:140
1479199335,3cyclictest41-21ksoftirqd/323:35:183
14791993330,2cyclictest15629-21grep23:40:223
14791993329,3cyclictest41-21ksoftirqd/323:05:013
14791993329,3cyclictest41-21ksoftirqd/319:40:263
14791993328,3cyclictest41-21ksoftirqd/320:37:243
14791993327,4cyclictest41-21ksoftirqd/319:20:453
1479199330,8cyclictest41-21ksoftirqd/323:25:193
14790993328,3cyclictest33-21ksoftirqd/223:35:002
14790993327,4cyclictest33-21ksoftirqd/222:56:502
14789993328,3cyclictest25-21ksoftirqd/120:09:591
14789993328,3cyclictest25-21ksoftirqd/120:09:591
14789993327,4cyclictest25-21ksoftirqd/122:18:061
14789993327,4cyclictest25-21ksoftirqd/121:49:211
14789993327,4cyclictest25-21ksoftirqd/119:27:451
14789993327,4cyclictest25-21ksoftirqd/100:19:461
14789993327,4cyclictest25-21ksoftirqd/100:10:301
1478899339,21cyclictest31652-21grep23:05:270
14788993328,3cyclictest9-21ksoftirqd/022:10:530
14788993328,3cyclictest9-21ksoftirqd/020:17:230
14788993327,4cyclictest9-21ksoftirqd/023:34:020
14788993327,4cyclictest9-21ksoftirqd/021:12:170
14788993327,4cyclictest9-21ksoftirqd/020:32:340
14791993227,3cyclictest41-21ksoftirqd/322:40:123
14791993227,3cyclictest41-21ksoftirqd/320:40:083
14790993227,3cyclictest33-21ksoftirqd/223:40:002
14790993227,3cyclictest33-21ksoftirqd/220:57:082
14790993226,4cyclictest33-21ksoftirqd/223:14:312
14790993226,4cyclictest33-21ksoftirqd/222:28:462
14790993226,4cyclictest33-21ksoftirqd/221:26:562
14790993226,4cyclictest33-21ksoftirqd/220:07:422
14790993226,4cyclictest33-21ksoftirqd/220:07:422
14790993226,4cyclictest33-21ksoftirqd/200:15:082
14790993225,4cyclictest33-21ksoftirqd/200:10:232
14789993228,3cyclictest25-21ksoftirqd/122:35:121
14789993227,3cyclictest25-21ksoftirqd/123:37:091
14789993227,3cyclictest25-21ksoftirqd/121:35:411
14789993227,3cyclictest25-21ksoftirqd/121:01:441
14789993226,4cyclictest25-21ksoftirqd/121:50:331
14789993226,4cyclictest25-21ksoftirqd/121:42:231
14789993226,4cyclictest25-21ksoftirqd/120:51:401
14789993226,4cyclictest25-21ksoftirqd/119:39:001
14789993225,4cyclictest25-21ksoftirqd/120:46:281
14789993225,4cyclictest25-21ksoftirqd/120:46:271
14789993221,5cyclictest25-21ksoftirqd/123:43:591
14788993227,3cyclictest9-21ksoftirqd/023:58:100
14788993227,3cyclictest9-21ksoftirqd/022:21:240
14788993227,3cyclictest9-21ksoftirqd/021:35:000
14788993226,4cyclictest9-21ksoftirqd/023:48:100
14788993226,4cyclictest9-21ksoftirqd/020:02:180
14788993226,4cyclictest9-21ksoftirqd/000:35:100
14788993225,5cyclictest9-21ksoftirqd/023:37:310
1478899320,3cyclictest20518-21processes23:50:240
57898310,2rtkit-daemon0-21swapper/120:20:071
14790993126,3cyclictest33-21ksoftirqd/220:19:472
14790993125,4cyclictest33-21ksoftirqd/222:47:362
14790993125,4cyclictest33-21ksoftirqd/222:21:112
14790993125,4cyclictest33-21ksoftirqd/222:00:292
14790993111,17cyclictest25527-21sort20:40:112
1479099310,4cyclictest20341-21meminfo21:35:212
1479099310,3cyclictest10489-21taskset00:36:172
14789993125,4cyclictest25-21ksoftirqd/119:49:071
14789993125,4cyclictest25-21ksoftirqd/119:42:211
14789993125,4cyclictest25-21ksoftirqd/100:36:251
14788993126,3cyclictest9-21ksoftirqd/021:55:000
14788993125,4cyclictest9-21ksoftirqd/020:50:040
14788993125,4cyclictest9-21ksoftirqd/000:09:460
14788993110,19cyclictest2791-21df_inode23:15:130
14788993110,19cyclictest25278-21sed00:00:210
14788993110,19cyclictest20483-21latency_hist20:30:000
14790993025,3cyclictest33-21ksoftirqd/219:16:152
1479099301,3cyclictest6510-21df22:15:132
1479099301,3cyclictest20483-21latency_hist20:29:592
1479099301,27cyclictest5601-21kworker/2:123:45:292
1479099301,27cyclictest26994-21kworker/2:021:50:262
14790993011,15cyclictest24974-21latency_hist22:55:012
1479099300,3cyclictest16739-21taskset19:12:332
14789993025,3cyclictest25-21ksoftirqd/123:27:301
14789993025,3cyclictest25-21ksoftirqd/122:51:101
14789993025,3cyclictest25-21ksoftirqd/120:34:401
14789993024,4cyclictest25-21ksoftirqd/122:06:151
14788993025,3cyclictest9-21ksoftirqd/020:55:130
14788993025,3cyclictest9-21ksoftirqd/020:39:430
14788993025,3cyclictest9-21ksoftirqd/020:22:320
14788993024,4cyclictest9-21ksoftirqd/023:25:280
14788993024,4cyclictest9-21ksoftirqd/022:52:300
14788993023,5cyclictest9-21ksoftirqd/019:20:580
14788993010,17cyclictest2491-21cat19:50:210
1479099297,20cyclictest29293-21kworker/2:020:45:132
1479099297,20cyclictest29293-21kworker/2:020:45:132
14790992923,4cyclictest33-21ksoftirqd/223:41:392
14790992923,4cyclictest33-21ksoftirqd/221:41:332
14790992923,4cyclictest33-21ksoftirqd/221:20:502
1479099292,21cyclictest19573-21apt-get19:20:112
1479099291,26cyclictest5601-21kworker/2:122:35:262
14789992924,3cyclictest25-21ksoftirqd/121:12:111
14789992923,4cyclictest25-21ksoftirqd/123:50:561
14789992923,4cyclictest25-21ksoftirqd/123:18:151
14789992923,4cyclictest25-21ksoftirqd/121:58:371
14789992923,4cyclictest25-21ksoftirqd/120:36:451
14789992923,3cyclictest25-21ksoftirqd/122:57:321
14788992923,4cyclictest9-21ksoftirqd/022:02:330
14788992923,4cyclictest9-21ksoftirqd/021:39:210
14788992923,4cyclictest9-21ksoftirqd/019:19:140
14788992914,13cyclictest29462-21fschecks_count19:40:140
1479099286,20cyclictest29293-21kworker/2:019:40:112
14790992823,3cyclictest33-21ksoftirqd/223:17:472
14790992823,3cyclictest33-21ksoftirqd/220:03:502
14790992811,15cyclictest24536-21ls19:30:152
1479099280,3cyclictest1193-21grep22:05:122
1479099280,2cyclictest0-21swapper/222:10:242
1478999282,2cyclictest121rcu_preempt20:18:271
14789992822,4cyclictest25-21ksoftirqd/123:56:221
14789992822,4cyclictest25-21ksoftirqd/121:19:331
1478899288,17cyclictest5915-21seq19:59:010
1478899288,17cyclictest15172-21df_abs19:10:130
1478899287,3cyclictest10219-21expr20:05:280
1478899287,3cyclictest10219-21expr20:05:280
14788992823,3cyclictest9-21ksoftirqd/019:37:510
14788992822,4cyclictest9-21ksoftirqd/019:33:340
14788992822,4cyclictest9-21ksoftirqd/000:27:380
1478899280,25cyclictest3163-21sshd22:07:090
1479099276,19cyclictest5601-21kworker/2:123:05:132
14789992720,4cyclictest25-21ksoftirqd/123:11:101
1478899278,17cyclictest4737-21seq21:04:200
1478899276,3cyclictest13484-21grep22:30:130
14788992722,3cyclictest9-21ksoftirqd/022:28:070
14788992722,3cyclictest9-21ksoftirqd/022:17:440
14788992721,4cyclictest9-21ksoftirqd/020:46:350
14788992721,4cyclictest9-21ksoftirqd/020:46:350
1479099264,21cyclictest22586-21kworker/2:200:31:052
1479099264,21cyclictest22586-21kworker/2:200:31:052
14789992621,3cyclictest25-21ksoftirqd/100:31:161
14789992621,3cyclictest25-21ksoftirqd/100:31:161
14789992619,4cyclictest25-21ksoftirqd/122:46:461
1478899261,7cyclictest0-21swapper/000:10:180
1478899261,4cyclictest27598-21apt-get23:00:130
14789992520,3cyclictest25-21ksoftirqd/121:32:201
14789992520,3cyclictest25-21ksoftirqd/119:59:181
14789992520,3cyclictest25-21ksoftirqd/119:13:011
14789992520,3cyclictest25-21ksoftirqd/100:24:161
14789992519,4cyclictest25-21ksoftirqd/120:28:111
1478899255,3cyclictest11242-21switchtime21:15:250
14789992115,4cyclictest25-21ksoftirqd/123:34:571
14789992115,4cyclictest25-21ksoftirqd/120:02:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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