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2026-04-28 - 19:27
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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 all highest latencies:
System rackeslot2.osadl.org (updated Tue Apr 28, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2647321050,1sleep126476-21kthreadcore08:50:411
17714121000,2sleep1177030-21ssh10:35:381
2498642960,1sleep1249865-21sh11:21:481
1207792920,2sleep30-21swapper/309:55:443
41137612400,2sleep00-21swapper/007:25:400
1528992380,2sleep30-21swapper/310:20:093
4087470993428,1cyclictest1826201latency_hist10:40:000
3487142300,3sleep30-21swapper/312:30:003
2649091281,7phc2sys0-21swapper/310:45:323
4087470992517,7cyclictest1-21systemd12:20:010
4087470992513,7cyclictest0-21swapper/012:35:000
4087470992311,7cyclictest0-21swapper/009:10:360
4087472992219,1cyclictest0-21swapper/212:20:002
4087470992211,6cyclictest0-21swapper/009:30:320
4087472992118,1cyclictest0-21swapper/210:30:022
4087471992112,4cyclictest0-21swapper/110:00:011
4087470992117,2cyclictest0-21swapper/007:10:010
4087470992111,9cyclictest0-21swapper/009:15:320
2083462210,4sleep1208350-21kthreadcore10:55:391
4087471992017,2cyclictest3824500-21cron10:20:001
4087471992017,2cyclictest0-21swapper/111:20:001
4087470992017,2cyclictest263884-21needreboot11:30:400
408747099201,3cyclictest189743-21ssh10:43:460
408747099201,3cyclictest189743-21ssh10:43:460
3065772200,2sleep1306583-21kthreadcore12:00:401
2649191200,2ptp4l0-21swapper/311:35:003
4087472991917,1cyclictest0-21swapper/209:15:012
4087472991916,1cyclictest0-21swapper/211:15:002
408747199197,5cyclictest3851704-21mta-sts-daemon11:57:271
4087471991916,2cyclictest354716-21grep12:30:451
4087471991915,1cyclictest601rcuop/311:36:021
4087471991914,2cyclictest3851704-21mta-sts-daemon10:45:441
4087471991912,3cyclictest3851705-21mta-sts-daemon11:55:011
408747099198,6cyclictest0-21swapper/012:30:010
408747099198,6cyclictest0-21swapper/011:05:400
4087470991916,2cyclictest0-21swapper/008:40:000
4087470991911,4cyclictest46681-21diskmemload11:30:010
4087470991910,4cyclictest0-21swapper/010:30:010
3349022190,6sleep0241rcuc/012:20:350
2649091190,2phc2sys0-21swapper/311:19:313
4087472991815,1cyclictest0-21swapper/210:40:372
4087472991815,1cyclictest0-21swapper/210:40:372
408747199189,1cyclictest501rcuop/209:19:441
408747199186,1cyclictest191rcu_preempt10:08:471
4087471991815,2cyclictest282568-21irqcore11:45:361
4087471991815,2cyclictest1-21systemd09:45:021
4087471991813,4cyclictest4166679-21gltestperf08:10:341
4087471991810,3cyclictest0-21swapper/110:10:351
408747099189,5cyclictest0-21swapper/010:15:360
408747099188,6cyclictest0-21swapper/009:25:320
4087470991815,2cyclictest4121644-21cut07:35:010
4087470991815,2cyclictest296236-21systemd-run11:55:020
4087470991815,2cyclictest0-21swapper/007:20:000
4087470991812,2cyclictest0-21swapper/010:57:340
2649091181,4phc2sys0-21swapper/308:25:323
4087472991714,1cyclictest0-21swapper/211:50:002
4087472991714,1cyclictest0-21swapper/211:40:442
4087472991714,1cyclictest0-21swapper/211:25:002
4087472991714,1cyclictest0-21swapper/211:16:482
4087472991714,1cyclictest0-21swapper/210:10:462
4087472991714,1cyclictest0-21swapper/209:45:342
4087472991713,2cyclictest0-21swapper/208:40:362
4087472991711,2cyclictest0-21swapper/209:25:302
408747199179,3cyclictest501rcuop/209:04:421
408747199178,4cyclictest185593-21cut10:40:381
408747199178,4cyclictest185593-21cut10:40:381
408747199178,1cyclictest501rcuop/210:32:071
408747199177,3cyclictest501rcuop/207:47:551
4087471991715,1cyclictest288643-21kworker/u16:2-rpciod12:20:021
408747199171,4cyclictest0-21swapper/109:28:031
4087471991714,2cyclictest3880722-21gmain07:40:001
4087471991714,2cyclictest3851705-21mta-sts-daemon12:28:081
4087471991714,2cyclictest3827634-1atopacctd10:29:071
4087471991714,2cyclictest217220-21kthreadcore11:00:391
4087471991714,2cyclictest198864-21grep10:50:351
4087471991714,2cyclictest114930-21sh09:55:021
4087471991714,2cyclictest0-21swapper/109:10:001
4087471991711,2cyclictest191rcu_preempt09:20:221
408747099178,4cyclictest34434-21kworker/u16:1-events_unbound09:41:350
408747099177,9cyclictest0-21swapper/011:45:300
408747099173,8cyclictest0-21swapper/010:10:320
408747099172,5cyclictest491rcuog/210:54:400
4087470991714,2cyclictest4165864-21systemd08:10:010
4087470991714,2cyclictest300778-21kthreadcore11:55:400
4087470991714,2cyclictest0-21swapper/009:40:000
4087470991712,4cyclictest3851705-21mta-sts-daemon11:41:450
4087470991711,4cyclictest0-21swapper/009:50:010
408747099171,11cyclictest0-21swapper/011:38:520
2649091170,2phc2sys0-21swapper/311:10:003
2649091170,2phc2sys0-21swapper/307:50:373
408747299166,3cyclictest0-21swapper/211:55:332
408747299161,8cyclictest0-21swapper/210:00:312
408747299161,8cyclictest0-21swapper/209:40:012
4087472991614,1cyclictest0-21swapper/210:50:022
4087472991614,1cyclictest0-21swapper/207:15:022
4087472991613,1cyclictest0-21swapper/212:25:022
4087472991613,1cyclictest0-21swapper/211:35:012
4087472991613,1cyclictest0-21swapper/210:35:452
4087472991613,1cyclictest0-21swapper/210:15:332
4087472991613,1cyclictest0-21swapper/208:15:002
4087472991613,1cyclictest0-21swapper/208:00:392
408747199169,1cyclictest501rcuop/211:26:141
408747199169,1cyclictest501rcuop/210:23:171
408747199169,1cyclictest501rcuop/208:35:311
408747199168,3cyclictest501rcuop/208:42:371
408747199166,3cyclictest501rcuop/208:07:551
4087471991613,2cyclictest84773-21/usr/sbin/munin09:35:351
4087471991613,2cyclictest3851702-21mta-sts-daemon07:30:011
4087471991613,2cyclictest36-21ksoftirqd/111:05:441
4087471991612,3cyclictest4087469-21cyclictest08:55:431
4087471991612,3cyclictest181794-21kworker/u16:0+nfsiod11:43:291
4087471991611,1cyclictest191rcu_preempt11:12:111
4087471991610,1cyclictest601rcuop/308:25:501
408747099169,2cyclictest357951-21ssh12:35:380
408747099166,8cyclictest0-21swapper/010:20:290
4087470991613,2cyclictest3851703-21mta-sts-daemon10:45:310
4087470991613,2cyclictest320200-21tr12:10:360
4087470991613,2cyclictest229234-21grep11:10:350
4087470991613,2cyclictest16729-21irqcore08:45:370
4087470991613,2cyclictest131209-21sed10:05:370
4087470991613,2cyclictest1290-21dbus-daemon12:10:010
4087470991612,2cyclictest0-21swapper/008:05:010
4087470991612,2cyclictest0-21swapper/007:45:010
2649091161,2phc2sys0-21swapper/311:51:173
2649091161,1phc2sys0-21swapper/309:28:033
2649091160,3phc2sys0-21swapper/311:12:413
2649091160,2phc2sys0-21swapper/311:38:393
2649091160,2phc2sys0-21swapper/311:04:003
2649091160,2phc2sys0-21swapper/309:44:023
2649091160,2phc2sys0-21swapper/309:20:303
2649091160,1phc2sys0-21swapper/311:59:583
408747299156,3cyclictest0-21swapper/208:25:012
4087472991513,1cyclictest0-21swapper/212:25:422
4087472991512,1cyclictest0-21swapper/212:33:352
4087472991512,1cyclictest0-21swapper/211:55:012
4087472991512,1cyclictest0-21swapper/211:25:422
4087472991512,1cyclictest0-21swapper/210:00:022
4087472991512,1cyclictest0-21swapper/209:51:552
4087472991512,1cyclictest0-21swapper/209:05:372
4087472991512,1cyclictest0-21swapper/208:30:362
4087472991512,1cyclictest0-21swapper/208:25:072
4087472991512,1cyclictest0-21swapper/208:05:352
4087472991512,1cyclictest0-21swapper/207:55:002
408747299150,4cyclictest2042632sleep210:52:042
408747199159,1cyclictest501rcuop/210:01:161
408747199159,1cyclictest501rcuop/209:32:021
408747199158,3cyclictest0-21swapper/109:45:341
408747199158,1cyclictest501rcuop/212:38:491
408747199158,1cyclictest501rcuop/212:20:491
408747199157,1cyclictest501rcuop/212:10:031
408747199156,3cyclictest1996-21runrttasks07:43:061
4087471991512,2cyclictest4147908-21cut07:55:351
4087471991512,2cyclictest4097097-21cut07:15:331
4087471991512,2cyclictest4094697-21kthreadcore07:15:021
4087471991512,2cyclictest351ktimers/109:12:341
4087471991512,2cyclictest312921-21kthreadcore12:05:381
4087471991512,2cyclictest259695-21if_enp1s011:30:351
4087471991512,2cyclictest1296-21polkitd08:25:011
4087471991511,3cyclictest3827634-1atopacctd07:50:061
408747099159,5cyclictest4127797-21systemd-run07:40:000
408747099158,5cyclictest4187057-21tr08:25:380
408747099157,2cyclictest0-21swapper/012:00:410
408747099157,2cyclictest0-21swapper/010:30:410
408747099156,5cyclictest0-21swapper/011:00:310
408747099154,6cyclictest46724-21awk09:10:000
408747099153,6cyclictest0-21swapper/009:20:300
4087470991512,2cyclictest4145151-21kthreadcore07:50:410
4087470991512,2cyclictest4093747-21latency_hist07:15:010
4087470991512,2cyclictest28173-21systemd08:55:020
4087470991511,3cyclictest4140016-21timerwakeupswit07:45:440
408747099150,3cyclictest242039-21kworker/u16:1+xprtiod11:25:010
2649091150,2phc2sys0-21swapper/311:23:553
2649091150,2phc2sys0-21swapper/310:43:243
2649091150,2phc2sys0-21swapper/310:43:233
2649091150,2phc2sys0-21swapper/310:17:183
4087472991412,1cyclictest0-21swapper/209:20:182
4087472991411,1cyclictest0-21swapper/212:10:452
4087472991411,1cyclictest0-21swapper/212:07:192
4087472991411,1cyclictest0-21swapper/211:35:352
4087472991411,1cyclictest0-21swapper/211:00:342
4087472991411,1cyclictest0-21swapper/210:55:372
4087472991411,1cyclictest0-21swapper/210:21:552
4087472991411,1cyclictest0-21swapper/209:40:412
4087472991411,1cyclictest0-21swapper/208:50:012
4087472991411,1cyclictest0-21swapper/207:43:192
4087472991411,1cyclictest0-21swapper/207:30:362
4087472991411,1cyclictest0-21swapper/207:25:392
4087472991410,2cyclictest0-21swapper/212:00:412
4087472991410,2cyclictest0-21swapper/211:09:022
4087472991410,2cyclictest0-21swapper/208:52:142
4087472991410,2cyclictest0-21swapper/207:20:452
408747299140,7cyclictest0-21swapper/209:30:332
408747199149,4cyclictest17672-21cut08:45:381
4087471991412,1cyclictest4173534-21kernelversion08:15:371
4087471991411,2cyclictest4191333-21tr08:30:321
4087471991411,2cyclictest4156351-21kthreadcore08:00:401
4087471991411,2cyclictest4117539-21kthreadcore07:30:391
4087471991411,2cyclictest4106662-21kthreadcore07:20:391
408747099149,4cyclictest3851702-21mta-sts-daemon07:58:070
408747099144,5cyclictest4178509-21/usr/sbin/munin08:20:440
408747099141,6cyclictest1290-21dbus-daemon08:45:000
4087470991412,1cyclictest3851705-21mta-sts-daemon09:50:370
4087470991411,2cyclictest4087469-21cyclictest08:30:390
4087470991411,2cyclictest38972-21kthreadcore09:00:390
4087470991411,2cyclictest3851705-21mta-sts-daemon07:20:340
4087470991411,2cyclictest33042-21latency08:55:400
4087470991411,2cyclictest122829-21aten2.4-expect10:00:320
4087470991411,2cyclictest0-21swapper/011:20:000
4087470991410,3cyclictest4174241-21kthreadcore08:15:370
383433398140,7rtkit-daemon3851703-21mta-sts-daemon09:59:080
2649091140,2phc2sys0-21swapper/312:14:553
2649091140,2phc2sys0-21swapper/310:50:123
2649091140,1phc2sys0-21swapper/309:52:433
408747299131,6cyclictest0-21swapper/208:55:322
4087472991311,1cyclictest0-21swapper/212:35:442
4087472991311,1cyclictest0-21swapper/210:05:392
4087472991311,1cyclictest0-21swapper/209:16:212
4087472991310,1cyclictest0-21swapper/210:31:062
4087472991310,1cyclictest0-21swapper/208:35:382
4087472991310,1cyclictest0-21swapper/208:15:442
4087472991310,1cyclictest0-21swapper/207:45:202
408747099139,3cyclictest4168277-21kthreadcore08:10:370
2649091130,2phc2sys0-21swapper/312:06:573
2649091130,2phc2sys0-21swapper/311:46:403
2649091130,1phc2sys0-21swapper/310:25:173
2649091130,1phc2sys0-21swapper/308:51:243
408747299121,6cyclictest0-21swapper/207:10:012
4087472991210,1cyclictest0-21swapper/207:55:022
4087472991210,1cyclictest0-21swapper/207:35:392
2649091123,2phc2sys0-21swapper/310:55:383
2649091123,2phc2sys0-21swapper/309:15:413
2649091121,4phc2sys0-21swapper/308:55:323
2649091120,2phc2sys0-21swapper/312:20:473
2649091120,2phc2sys0-21swapper/310:13:503
408747299119,1cyclictest0-21swapper/207:15:032
408747299118,1cyclictest0-21swapper/209:00:372
408747199111,2cyclictest3536552-1atop07:10:011
2649091112,2phc2sys0-21swapper/310:32:423
2649091111,2phc2sys0-21swapper/307:10:423
2649091110,4phc2sys0-21swapper/307:25:323
2649091110,2phc2sys0-21swapper/312:15:103
2649091110,2phc2sys0-21swapper/309:30:323
2649091110,2phc2sys0-21swapper/309:10:403
2649091110,2phc2sys0-21swapper/307:57:013
2649091110,1phc2sys0-21swapper/309:01:383
2649091110,1phc2sys0-21swapper/308:47:243
2649091110,1phc2sys0-21swapper/307:16:273
3548302100,2sleep30-21swapper/312:30:533
2649091102,2phc2sys0-21swapper/310:04:203
2649091101,3phc2sys0-21swapper/307:35:013
2649091101,2phc2sys0-21swapper/308:40:343
2649091101,2phc2sys0-21swapper/308:35:383
2649091101,2phc2sys0-21swapper/307:05:333
2649091100,2phc2sys0-21swapper/312:35:513
2649091100,2phc2sys0-21swapper/312:03:523
2649091100,2phc2sys0-21swapper/311:40:233
2649091100,2phc2sys0-21swapper/311:25:323
2649091100,2phc2sys0-21swapper/310:07:083
2649091100,2phc2sys0-21swapper/308:05:413
264909191,3phc2sys0-21swapper/309:05:323
264909191,2phc2sys0-21swapper/309:46:153
264909191,2phc2sys0-21swapper/307:40:353
264909190,4phc2sys0-21swapper/308:20:013
264909190,2phc2sys0-21swapper/310:35:103
264909190,2phc2sys0-21swapper/308:20:353
264909190,2phc2sys0-21swapper/308:10:133
264909190,2phc2sys0-21swapper/308:00:313
264909190,2phc2sys0-21swapper/307:45:323
264909190,2phc2sys0-21swapper/307:39:553
264909190,2phc2sys0-21swapper/307:20:323
264909190,1phc2sys0-21swapper/309:37:533
264909180,2phc2sys0-21swapper/308:30:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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