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2025-12-11 - 06:42
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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 Thu Dec 11, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198682215150,22sleep00-21swapper/019:09:000
197972205171,22sleep10-21swapper/119:08:061
137191204170,22phc2sys0-21swapper/319:08:183
197052198165,22sleep20-21swapper/219:06:532
1994428763,15sleep30-21swapper/319:10:013
2023799773,72cyclictest20480-21kworker/1:119:47:071
253432600,2sleep00-21swapper/022:40:210
2023699586,16cyclictest21217-21grep19:10:190
2023699574,10cyclictest0-21swapper/021:05:170
2023699554,15cyclictest0-21swapper/020:55:010
2023699553,16cyclictest0-21swapper/021:20:170
2023699533,17cyclictest0-21swapper/020:35:000
136991530,1ptp4l401ktimersoftd/319:40:213
2023699524,17cyclictest13663-21ls00:30:200
2023699506,7cyclictest31595-21apt-config22:55:010
2023699505,8cyclictest32233-21apt-get21:50:130
2023699501,17cyclictest0-21swapper/020:40:170
2023699496,9cyclictest8116-21sed23:10:270
2023699496,8cyclictest7086-21ls00:15:260
2023699496,10cyclictest9527-21cat22:10:000
2023699493,16cyclictest0-21swapper/021:45:120
20236994911,34cyclictest17783-21latency22:25:200
20236994911,16cyclictest13248-21phc2sys-jitter22:15:220
2023699477,8cyclictest28399-21fschecks_time23:55:140
2023699476,8cyclictest28208-21unixbench_singl22:45:270
2023699476,7cyclictest10929-21irqrtprio00:25:200
2023699474,15cyclictest0-21swapper/021:55:170
2023699473,15cyclictest0-21swapper/021:35:150
2023699466,16cyclictest31784-21cat00:00:250
2023699456,7cyclictest24818-21ls23:45:250
2023699456,7cyclictest10337-21hddtemp_smartct19:55:170
136991450,0ptp4l401ktimersoftd/323:59:333
2023799440,42cyclictest0-21swapper/123:06:061
2023699446,8cyclictest1723-21hddtemp_smartct20:45:160
2023699446,7cyclictest7047-21meminfo20:55:230
2023699446,7cyclictest22021-21df20:20:140
2023699445,7cyclictest6505-21ls22:00:270
2023699445,7cyclictest3944-21memory00:10:210
2023699441,15cyclictest0-21swapper/022:50:250
2023699436,8cyclictest25608-21threads20:25:280
2023699436,7cyclictest12868-21iostat20:00:200
2023699434,7cyclictest16966-21apt-get20:10:120
2023699431,15cyclictest0-21swapper/019:30:160
136991430,1ptp4l401ktimersoftd/321:47:023
2023699425,8cyclictest5420-21if_enp4s019:45:200
2023699425,7cyclictest28050-21iostat19:25:190
2023699425,7cyclictest1602-21sshd19:36:060
2023699424,7cyclictest1921-21apt-get19:40:020
136991420,1ptp4l401ktimersoftd/320:14:383
136991420,0ptp4l401ktimersoftd/323:24:583
2023699413,16cyclictest0-21swapper/023:30:210
136991410,0ptp4l401ktimersoftd/319:15:193
20237993918,20cyclictest0-21swapper/100:33:461
2023699393,7cyclictest19902-21ls23:35:250
59298380,6rtkit-daemon0-21swapper/221:30:512
20238993831,5cyclictest12959-21cron21:10:002
2023699386,14cyclictest3480-21users23:00:270
2023899377,28cyclictest0-21swapper/223:05:272
20237993730,5cyclictest25-21ksoftirqd/120:36:021
2023699374,15cyclictest21484-21latency_hist20:20:010
2023699373,8cyclictest4761-21iostat_ios23:05:200
2023699372,16cyclictest0-21swapper/021:10:150
136991370,0ptp4l401ktimersoftd/319:20:013
20239993629,5cyclictest41-21ksoftirqd/300:34:053
20238993632,3cyclictest33-21ksoftirqd/222:36:422
20238993630,4cyclictest33-21ksoftirqd/221:46:152
20238993630,4cyclictest33-21ksoftirqd/221:27:582
20238993629,5cyclictest33-21ksoftirqd/222:54:352
20238993629,5cyclictest33-21ksoftirqd/219:12:432
20238993629,4cyclictest11950-21cron20:00:002
136991360,13ptp4l401ktimersoftd/323:15:283
136991360,0ptp4l401ktimersoftd/300:39:093
20239993529,4cyclictest41-21ksoftirqd/323:54:103
20239993529,4cyclictest41-21ksoftirqd/323:13:503
20239993529,4cyclictest41-21ksoftirqd/322:46:583
20239993529,4cyclictest41-21ksoftirqd/321:14:313
20239993529,3cyclictest41-21ksoftirqd/321:18:573
20238993529,4cyclictest33-21ksoftirqd/223:27:452
20238993529,4cyclictest33-21ksoftirqd/222:18:532
20238993529,4cyclictest33-21ksoftirqd/221:18:352
20238993528,4cyclictest33-21ksoftirqd/220:00:082
20237993531,3cyclictest25-21ksoftirqd/119:21:021
20237993528,5cyclictest25-21ksoftirqd/100:02:341
2023699355,7cyclictest16115-21ls00:35:230
20236993529,4cyclictest9-21ksoftirqd/022:11:360
20239993429,3cyclictest41-21ksoftirqd/300:02:283
20239993428,4cyclictest41-21ksoftirqd/323:07:443
20239993428,4cyclictest41-21ksoftirqd/321:53:393
20239993428,4cyclictest41-21ksoftirqd/321:29:043
20239993428,4cyclictest41-21ksoftirqd/300:15:003
20239993427,5cyclictest41-21ksoftirqd/300:19:173
20239993427,5cyclictest41-21ksoftirqd/300:06:213
20238993428,4cyclictest33-21ksoftirqd/223:42:562
20238993428,4cyclictest33-21ksoftirqd/223:10:312
20238993428,4cyclictest33-21ksoftirqd/222:32:172
20238993428,4cyclictest33-21ksoftirqd/221:41:102
20238993428,4cyclictest33-21ksoftirqd/221:13:582
20238993427,4cyclictest33-21ksoftirqd/220:30:092
20238993427,4cyclictest33-21ksoftirqd/219:44:202
20237993428,4cyclictest25-21ksoftirqd/119:43:391
20237993428,4cyclictest25-21ksoftirqd/119:29:181
20237993428,4cyclictest25-21ksoftirqd/119:17:591
20237993427,5cyclictest25-21ksoftirqd/121:24:321
2023699343,6cyclictest8828-21irqstats00:20:200
136991340,0ptp4l401ktimersoftd/323:44:093
20239993329,2cyclictest136991ptp4l22:26:513
20239993328,3cyclictest41-21ksoftirqd/320:53:233
20239993327,4cyclictest41-21ksoftirqd/322:36:273
20239993327,4cyclictest41-21ksoftirqd/322:04:063
20239993327,4cyclictest41-21ksoftirqd/321:23:103
20239993327,4cyclictest41-21ksoftirqd/321:02:363
20239993327,4cyclictest41-21ksoftirqd/320:07:163
20239993327,4cyclictest41-21ksoftirqd/319:36:063
20238993328,3cyclictest33-21ksoftirqd/223:16:122
20238993327,4cyclictest33-21ksoftirqd/223:52:192
20238993327,4cyclictest33-21ksoftirqd/220:47:502
20238993327,4cyclictest33-21ksoftirqd/220:39:402
20238993327,4cyclictest33-21ksoftirqd/220:17:262
20237993329,3cyclictest25-21ksoftirqd/123:45:001
20237993328,3cyclictest25-21ksoftirqd/100:24:281
20237993327,4cyclictest25-21ksoftirqd/122:57:351
20237993327,4cyclictest25-21ksoftirqd/122:05:321
20237993327,4cyclictest25-21ksoftirqd/121:54:131
20237993327,4cyclictest25-21ksoftirqd/121:03:541
20237993327,4cyclictest25-21ksoftirqd/120:28:041
20237993327,4cyclictest25-21ksoftirqd/100:16:341
20236993327,4cyclictest9-21ksoftirqd/022:36:240
2023699332,16cyclictest0-21swapper/000:05:250
20239993226,4cyclictest41-21ksoftirqd/323:25:453
20239993226,4cyclictest41-21ksoftirqd/323:03:473
20239993226,4cyclictest41-21ksoftirqd/321:06:293
20239993226,4cyclictest41-21ksoftirqd/320:32:193
20239993226,4cyclictest41-21ksoftirqd/320:26:533
20239993225,4cyclictest41-21ksoftirqd/322:06:023
20238993228,2cyclictest33-21ksoftirqd/221:51:342
20238993227,3cyclictest33-21ksoftirqd/222:00:072
20238993227,3cyclictest33-21ksoftirqd/221:20:132
20238993227,3cyclictest33-21ksoftirqd/220:56:352
20238993227,3cyclictest33-21ksoftirqd/219:51:252
20238993227,3cyclictest33-21ksoftirqd/219:46:382
20238993227,3cyclictest33-21ksoftirqd/200:20:132
20238993227,3cyclictest33-21ksoftirqd/200:15:002
20238993226,4cyclictest33-21ksoftirqd/220:28:212
20238993226,4cyclictest33-21ksoftirqd/220:20:072
20237993227,3cyclictest25-21ksoftirqd/122:49:041
20237993227,3cyclictest25-21ksoftirqd/120:57:481
20237993227,3cyclictest25-21ksoftirqd/120:04:111
20237993226,4cyclictest25-21ksoftirqd/123:52:191
20237993226,4cyclictest25-21ksoftirqd/123:45:331
20237993226,4cyclictest25-21ksoftirqd/123:31:251
20237993226,4cyclictest25-21ksoftirqd/122:04:481
20237993226,4cyclictest25-21ksoftirqd/121:17:061
20237993225,5cyclictest25-21ksoftirqd/120:18:411
2023699324,16cyclictest15568-21/usr/sbin/munin21:15:210
20239993126,3cyclictest41-21ksoftirqd/322:57:553
20239993126,3cyclictest41-21ksoftirqd/320:40:463
20239993125,4cyclictest41-21ksoftirqd/322:30:573
20239993125,4cyclictest41-21ksoftirqd/322:19:543
20239993125,4cyclictest41-21ksoftirqd/320:35:373
20239993125,4cyclictest41-21ksoftirqd/319:25:593
20238993126,3cyclictest33-21ksoftirqd/223:49:232
20238993126,3cyclictest33-21ksoftirqd/222:43:352
20238993126,3cyclictest33-21ksoftirqd/220:54:062
20238993125,4cyclictest33-21ksoftirqd/222:47:492
20238993125,4cyclictest33-21ksoftirqd/220:42:172
20238993125,4cyclictest33-21ksoftirqd/219:26:352
20238993125,4cyclictest33-21ksoftirqd/200:03:562
20237993126,3cyclictest25-21ksoftirqd/123:26:351
20237993126,3cyclictest25-21ksoftirqd/122:54:141
20237993126,3cyclictest25-21ksoftirqd/119:13:301
20237993125,4cyclictest25-21ksoftirqd/122:31:561
20237993125,4cyclictest25-21ksoftirqd/120:54:341
20237993125,4cyclictest25-21ksoftirqd/120:06:091
20237993125,4cyclictest25-21ksoftirqd/119:56:231
20237993125,4cyclictest25-21ksoftirqd/100:36:551
2023699315,10cyclictest15163-21irqrtprio22:20:180
20236993125,4cyclictest9-21ksoftirqd/023:20:330
20236993125,4cyclictest9-21ksoftirqd/021:30:530
20236993125,4cyclictest9-21ksoftirqd/021:00:370
2023699312,16cyclictest0-21swapper/019:15:130
136991310,0ptp4l401ktimersoftd/320:15:213
20239993024,4cyclictest41-21ksoftirqd/323:34:243
20239993024,4cyclictest41-21ksoftirqd/322:54:353
20238993025,3cyclictest33-21ksoftirqd/223:23:122
20238993025,3cyclictest33-21ksoftirqd/222:55:502
20238993025,3cyclictest33-21ksoftirqd/221:04:442
20238993025,3cyclictest33-21ksoftirqd/220:11:122
20238993024,4cyclictest33-21ksoftirqd/223:57:212
20238993024,4cyclictest33-21ksoftirqd/223:37:302
20238993024,4cyclictest33-21ksoftirqd/222:10:552
20237993025,3cyclictest25-21ksoftirqd/121:06:141
20237993025,3cyclictest25-21ksoftirqd/119:51:081
20237993024,4cyclictest25-21ksoftirqd/121:39:121
20237993024,4cyclictest25-21ksoftirqd/119:35:281
20237993024,4cyclictest25-21ksoftirqd/100:27:371
2023699307,15cyclictest7607-21cstates19:50:110
20236993024,4cyclictest9-21ksoftirqd/023:16:160
2023699302,19cyclictest0-21swapper/020:35:150
136991300,0ptp4l401ktimersoftd/319:55:223
20239992924,3cyclictest41-21ksoftirqd/322:40:473
20239992924,3cyclictest41-21ksoftirqd/322:10:393
20239992924,3cyclictest41-21ksoftirqd/321:40:513
20239992923,4cyclictest41-21ksoftirqd/320:00:013
20239992923,4cyclictest41-21ksoftirqd/319:51:523
20239992923,4cyclictest41-21ksoftirqd/319:32:173
20238992925,3cyclictest33-21ksoftirqd/219:33:332
20238992925,2cyclictest33-21ksoftirqd/221:35:202
20238992923,4cyclictest33-21ksoftirqd/223:34:472
20238992923,4cyclictest33-21ksoftirqd/222:23:342
20237992924,3cyclictest25-21ksoftirqd/122:16:591
20237992924,3cyclictest25-21ksoftirqd/121:56:521
20237992924,3cyclictest25-21ksoftirqd/121:49:071
20237992923,4cyclictest25-21ksoftirqd/122:37:371
20236992923,4cyclictest9-21ksoftirqd/020:06:080
136991290,0ptp4l401ktimersoftd/300:23:553
20239992823,3cyclictest41-21ksoftirqd/323:47:573
20239992822,4cyclictest41-21ksoftirqd/321:39:513
20239992822,4cyclictest41-21ksoftirqd/319:46:133
20238992824,3cyclictest33-21ksoftirqd/220:06:082
20238992823,3cyclictest33-21ksoftirqd/223:01:382
20237992823,3cyclictest25-21ksoftirqd/123:24:341
20237992823,3cyclictest25-21ksoftirqd/100:13:201
20236992822,4cyclictest9-21ksoftirqd/023:54:180
136991280,0ptp4l401ktimersoftd/323:35:333
136991280,0ptp4l401ktimersoftd/321:55:163
136991280,0ptp4l401ktimersoftd/300:29:283
20239992721,4cyclictest41-21ksoftirqd/321:30:123
20238992722,3cyclictest33-21ksoftirqd/219:23:372
20238992722,3cyclictest33-21ksoftirqd/219:19:492
20238992722,3cyclictest33-21ksoftirqd/200:31:172
20237992722,3cyclictest25-21ksoftirqd/120:41:211
20237992722,3cyclictest25-21ksoftirqd/120:32:341
20237992722,3cyclictest25-21ksoftirqd/119:34:041
20237992721,4cyclictest25-21ksoftirqd/123:37:311
20237992721,4cyclictest25-21ksoftirqd/120:46:051
20236992722,3cyclictest9-21ksoftirqd/023:45:000
20236992722,3cyclictest9-21ksoftirqd/021:42:200
2023699271,17cyclictest0-21swapper/019:20:160
20239992621,3cyclictest41-21ksoftirqd/322:23:403
20238992621,3cyclictest33-21ksoftirqd/219:36:212
20238992621,3cyclictest33-21ksoftirqd/200:09:252
20237992621,3cyclictest25-21ksoftirqd/120:11:051
20237992621,3cyclictest25-21ksoftirqd/100:06:011
20237992620,4cyclictest25-21ksoftirqd/123:01:441
20237992620,4cyclictest25-21ksoftirqd/122:11:261
20237992620,4cyclictest25-21ksoftirqd/121:41:371
20237992620,4cyclictest25-21ksoftirqd/121:28:171
20236992620,4cyclictest9-21ksoftirqd/023:27:430
20239992520,3cyclictest41-21ksoftirqd/320:58:283
20238992521,3cyclictest33-21ksoftirqd/200:35:222
20238992520,3cyclictest33-21ksoftirqd/221:55:192
20238992519,4cyclictest33-21ksoftirqd/222:25:042
20237992520,3cyclictest25-21ksoftirqd/122:44:281
20237992520,3cyclictest25-21ksoftirqd/120:21:101
20237992519,4cyclictest25-21ksoftirqd/123:16:411
20236992520,3cyclictest9-21ksoftirqd/021:25:140
136991250,0ptp4l401ktimersoftd/320:20:103
20237992419,3cyclictest25-21ksoftirqd/123:58:371
20237992418,4cyclictest25-21ksoftirqd/122:23:251
20236992419,3cyclictest9-21ksoftirqd/022:32:470
136991240,0ptp4l401ktimersoftd/320:45:123
20238992318,3cyclictest33-21ksoftirqd/200:27:522
20238992317,4cyclictest33-21ksoftirqd/222:06:172
20237992318,3cyclictest25-21ksoftirqd/123:11:171
20237992318,3cyclictest25-21ksoftirqd/121:12:591
20237992317,4cyclictest25-21ksoftirqd/121:33:231
20238992115,4cyclictest33-21ksoftirqd/200:15:042
20237992115,4cyclictest25-21ksoftirqd/122:28:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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