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2026-04-23 - 19:13
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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 rackeslot2.osadl.org (updated Thu Apr 23, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29049902960,2sleep12904993-21latency_hist07:40:011
32361992600,1sleep13236198-21ssh11:34:441
32361992600,1sleep13236198-21ssh11:34:441
32696432270,1sleep10-21swapper/111:55:441
2864678992517,7cyclictest3138418-21latency_hist10:30:010
2864678992516,5cyclictest3326962-21latency_hist12:35:000
2864678992414,6cyclictest3150600-21kthreadcore10:35:450
286467999234,12cyclictest1290-21dbus-daemon09:05:011
2864679992320,2cyclictest2892385-21latency_hist07:30:011
2864679992320,2cyclictest2892385-21latency_hist07:30:011
2864679992310,4cyclictest0-21swapper/112:25:381
2864678992311,7cyclictest0-21swapper/010:15:010
2864679992216,2cyclictest134050irq/121-eno109:20:521
2864678992212,6cyclictest3306182-21kthreadcore12:20:430
2864680992119,1cyclictest0-21swapper/210:05:012
2864680992118,1cyclictest0-21swapper/210:55:412
2864678992118,2cyclictest1-21systemd08:00:010
286467899210,19cyclictest2892613-21/usr/sbin/munin07:30:390
2864679992017,2cyclictest1290-21dbus-daemon11:55:001
2864679992014,2cyclictest134050irq/121-eno109:30:511
286467899209,6cyclictest0-21swapper/011:45:400
286467899209,6cyclictest0-21swapper/009:45:410
2864678992017,2cyclictest0-21swapper/009:10:010
2649091200,2phc2sys0-21swapper/309:52:553
2864680991917,1cyclictest0-21swapper/210:35:012
2864679991916,2cyclictest3154412-21cpuspeed_turbos10:40:391
2864679991916,2cyclictest1290-21dbus-daemon10:50:011
2864679991916,2cyclictest1-21systemd12:20:021
2864679991915,3cyclictest3068685-21/usr/sbin/munin09:40:501
2864679991915,3cyclictest3068685-21/usr/sbin/munin09:40:501
2864679991915,2cyclictest0-21swapper/109:10:021
2864679991910,4cyclictest0-21swapper/112:35:461
2864678991917,1cyclictest0-21swapper/008:20:010
2864678991917,1cyclictest0-21swapper/008:20:010
2864678991916,2cyclictest2917653-21idleruntime-cro07:50:000
2864678991916,2cyclictest1290-21dbus-daemon09:40:500
2864678991916,2cyclictest1290-21dbus-daemon09:40:500
2864678991916,2cyclictest0-21swapper/011:20:010
2864678991913,5cyclictest3313520-21kthreadcore12:25:450
2864678991913,2cyclictest0-21swapper/009:21:390
2864678991912,6cyclictest3158485-21kthreadcore10:40:460
2864678991911,7cyclictest0-21swapper/011:25:010
2864678991911,7cyclictest0-21swapper/011:25:010
2864680991815,1cyclictest0-21swapper/211:35:002
2864680991815,1cyclictest0-21swapper/211:35:002
2864679991815,2cyclictest3880722-21gmain10:51:311
2864679991815,2cyclictest3289309-21grep12:10:011
2864679991815,2cyclictest1290-21dbus-daemon11:30:011
2864679991815,2cyclictest1290-21dbus-daemon09:55:001
2864679991811,3cyclictest3075736-21kthreadcore09:45:481
286467899188,5cyclictest0-21swapper/012:15:010
2864678991814,3cyclictest2992061-21ptp4l08:45:500
2864678991814,1cyclictest191rcu_preempt12:39:030
286467899180,14cyclictest0-21swapper/011:33:040
286467899180,14cyclictest0-21swapper/011:33:040
2649091180,3phc2sys0-21swapper/309:10:173
2649091180,2phc2sys0-21swapper/311:57:213
286468099172,10cyclictest0-21swapper/211:20:012
2864680991715,1cyclictest0-21swapper/209:05:382
2864680991714,1cyclictest0-21swapper/211:55:002
2864680991714,1cyclictest0-21swapper/211:30:002
2864680991714,1cyclictest0-21swapper/210:10:492
2864680991714,1cyclictest0-21swapper/210:00:002
2864680991714,1cyclictest0-21swapper/209:40:472
2864680991714,1cyclictest0-21swapper/209:40:472
2864680991714,1cyclictest0-21swapper/209:40:012
286467999179,3cyclictest0-21swapper/111:00:381
286467999179,3cyclictest0-21swapper/110:20:381
286467999178,4cyclictest134050irq/121-eno111:06:211
2864679991714,2cyclictest3851704-21mta-sts-daemon12:04:471
2864679991714,2cyclictest3834332-21rtkit-daemon07:20:311
2864679991714,2cyclictest3018401-21apt-get09:10:351
2864679991714,2cyclictest2992875-21cut08:50:001
2864679991714,2cyclictest1996-21runrttasks09:59:381
2864679991714,2cyclictest1290-21dbus-daemon12:15:001
2864679991713,3cyclictest3851705-21mta-sts-daemon10:10:441
286467899179,7cyclictest0-21swapper/011:00:390
286467899179,7cyclictest0-21swapper/010:55:450
286467899178,5cyclictest0-21swapper/010:21:250
286467899177,3cyclictest501rcuop/211:26:240
286467899176,4cyclictest501rcuop/209:15:090
2864678991714,2cyclictest3851703-21mta-sts-daemon07:20:420
2864678991714,2cyclictest3239725-21kthreadcore11:35:450
2864678991714,2cyclictest3005404-21systemd-run09:00:000
2864678991713,2cyclictest0-21swapper/012:00:370
2864678991712,4cyclictest3851702-21mta-sts-daemon09:36:580
2864678991712,2cyclictest3851703-21mta-sts-daemon11:53:130
2864678991710,1cyclictest601rcuop/311:07:520
286467899170,13cyclictest0-21swapper/011:55:480
2649091170,2phc2sys0-21swapper/312:07:313
2649091170,2phc2sys0-21swapper/311:35:343
2649091170,2phc2sys0-21swapper/310:56:463
2649091170,2phc2sys0-21swapper/307:25:463
2649091170,2phc2sys0-21swapper/307:25:463
2649091170,1phc2sys0-21swapper/311:43:343
2864680991613,1cyclictest0-21swapper/212:15:442
2864680991613,1cyclictest0-21swapper/212:05:462
2864680991613,1cyclictest0-21swapper/211:55:392
2864680991613,1cyclictest0-21swapper/210:55:012
2864680991613,1cyclictest0-21swapper/209:45:532
2864680991613,1cyclictest0-21swapper/209:15:422
2864680991613,1cyclictest0-21swapper/207:40:012
286467999169,6cyclictest3851704-21mta-sts-daemon08:55:421
2864679991613,2cyclictest3827634-1atopacctd10:35:181
2864679991613,2cyclictest3305423-21grep12:20:401
2864679991613,2cyclictest3244048-21latency_hist11:40:011
2864679991613,2cyclictest3214527-21cpuspeed_turbos11:20:391
2864679991613,2cyclictest3214527-21cpuspeed_turbos11:20:391
2864679991613,2cyclictest3101996-21gltestperf10:05:421
2864679991613,2cyclictest3040955-21aten_repower_cu09:25:381
2864679991613,2cyclictest3031165-21mailstats09:15:521
2864679991613,2cyclictest2911261-21apt-key07:45:011
2864679991613,2cyclictest2893193-21fschecks_count07:30:421
2864679991613,2cyclictest0-21swapper/109:40:021
2864679991612,2cyclictest0-21swapper/111:00:021
2864679991610,2cyclictest134050irq/121-eno111:40:431
286467899169,1cyclictest601rcuop/310:45:160
286467899169,1cyclictest601rcuop/309:25:550
286467899168,2cyclictest0-21swapper/009:55:370
286467899167,3cyclictest501rcuop/212:16:190
286467899167,3cyclictest501rcuop/211:13:060
286467899165,2cyclictest191rcu_preempt08:50:400
2864678991614,1cyclictest0-21swapper/010:05:020
2864678991613,2cyclictest3880722-21gmain07:10:510
2864678991613,2cyclictest3851704-21mta-sts-daemon09:35:010
2864678991613,2cyclictest3080825-21rm09:50:450
2864678991613,2cyclictest2968038-21/usr/sbin/munin08:30:010
2864678991612,3cyclictest2864676-21cyclictest08:00:390
2864678991612,1cyclictest191rcu_preempt10:17:460
286467899160,3cyclictest0-21swapper/010:50:500
286467899160,12cyclictest3288599-21ssh12:08:170
2649091160,3phc2sys0-21swapper/310:12:343
2649091160,2phc2sys0-21swapper/312:34:363
2649091160,2phc2sys0-21swapper/310:05:333
2649091160,2phc2sys0-21swapper/308:10:493
2649091160,1phc2sys0-21swapper/309:22:283
286468099154,4cyclictest0-21swapper/212:40:012
286468099151,8cyclictest0-21swapper/208:00:012
286468099151,4cyclictest0-21swapper/211:40:012
2864680991513,1cyclictest0-21swapper/212:30:442
2864680991513,1cyclictest0-21swapper/210:10:012
2864680991513,1cyclictest0-21swapper/207:50:012
2864680991513,1cyclictest0-21swapper/207:30:022
2864680991513,1cyclictest0-21swapper/207:30:022
2864680991513,1cyclictest0-21swapper/207:15:022
2864680991512,1cyclictest0-21swapper/212:30:012
2864680991512,1cyclictest0-21swapper/212:00:422
2864680991512,1cyclictest0-21swapper/211:40:442
2864680991512,1cyclictest0-21swapper/211:20:462
2864680991512,1cyclictest0-21swapper/211:20:462
2864680991512,1cyclictest0-21swapper/210:40:432
2864680991512,1cyclictest0-21swapper/210:20:382
2864680991512,1cyclictest0-21swapper/210:15:402
2864680991512,1cyclictest0-21swapper/209:20:462
2864680991512,1cyclictest0-21swapper/209:00:412
286467999159,5cyclictest3851705-21mta-sts-daemon08:05:381
2864679991512,2cyclictest3851705-21mta-sts-daemon10:19:221
2864679991512,2cyclictest3324952-21needreboot12:30:481
2864679991512,2cyclictest3252494-21fschecks_time11:45:421
2864679991512,2cyclictest2974152-21munin-plugin-st08:35:001
2864679991512,2cyclictest2955519-21systemd-run08:20:011
2864679991512,2cyclictest2955519-21systemd-run08:20:011
2864679991512,2cyclictest2864676-21cyclictest08:10:441
2864679991512,2cyclictest0-21swapper/108:30:001
286467899158,6cyclictest3139021-21/usr/sbin/munin10:30:430
286467899155,6cyclictest0-21swapper/008:21:320
286467899155,5cyclictest0-21swapper/007:25:430
286467899155,5cyclictest0-21swapper/007:25:430
286467899152,1cyclictest191rcu_preempt08:05:470
2864678991512,2cyclictest3104458-21kthreadcore10:05:450
2864678991512,2cyclictest1-21systemd09:00:520
2864678991511,3cyclictest2876454-21kthreadcore07:15:470
2864678991511,1cyclictest2943432-21cstates08:10:400
2864678991511,1cyclictest191rcu_preempt11:40:060
2864678991511,1cyclictest191rcu_preempt09:10:040
2864678991511,1cyclictest191rcu_preempt08:40:010
2649091150,2phc2sys0-21swapper/312:12:503
2649091150,2phc2sys0-21swapper/312:04:513
286468099141,6cyclictest0-21swapper/209:50:382
286468099141,6cyclictest0-21swapper/208:50:012
286468099141,4cyclictest0-21swapper/208:20:012
286468099141,4cyclictest0-21swapper/208:20:012
2864680991412,1cyclictest0-21swapper/210:45:412
2864680991412,1cyclictest0-21swapper/209:30:022
2864680991412,1cyclictest0-21swapper/207:15:462
2864680991411,1cyclictest0-21swapper/211:15:002
2864680991411,1cyclictest0-21swapper/209:15:002
2864680991411,1cyclictest0-21swapper/208:35:392
2864680991411,1cyclictest0-21swapper/208:25:522
2864680991411,1cyclictest0-21swapper/208:05:442
2864680991411,1cyclictest0-21swapper/208:00:442
2864680991411,1cyclictest0-21swapper/207:50:422
2864680991411,1cyclictest0-21swapper/207:45:012
2864680991411,1cyclictest0-21swapper/207:30:402
2864680991410,2cyclictest0-21swapper/211:49:512
2864680991410,1cyclictest0-21swapper/207:25:022
286467999149,4cyclictest3851698-21mta-sts-daemon07:14:501
2864679991411,2cyclictest3851702-21mta-sts-daemon08:54:521
2864679991411,2cyclictest3131393-21aten_repower_vo10:25:401
2864679991411,2cyclictest2980306-21cron08:40:001
2864679991411,2cyclictest2924253-21/usr/sbin/munin07:55:461
2864679991411,2cyclictest2873728-21aten_repower_vo07:15:401
2864679991410,3cyclictest3098017-21kthreadcore10:00:461
2864679991410,3cyclictest2955701-21aten_repower_fr08:20:391
2864679991410,3cyclictest2935978-21unixbench-2d08:00:521
286467899143,1cyclictest191rcu_preempt08:30:430
2864678991410,3cyclictest2983583-21kthreadcore08:40:450
2864678991410,1cyclictest601rcuop/307:35:020
2649091140,6phc2sys0-21swapper/307:15:393
2649091140,2phc2sys0-21swapper/309:39:363
2649091140,1phc2sys0-21swapper/310:35:593
286468099131,8cyclictest0-21swapper/212:10:372
286468099131,4cyclictest0-21swapper/207:10:012
2864680991311,1cyclictest0-21swapper/208:55:442
2864680991311,1cyclictest0-21swapper/208:20:402
2864680991311,1cyclictest0-21swapper/208:15:012
2864680991310,2cyclictest0-21swapper/208:55:012
2864680991310,1cyclictest0-21swapper/211:05:422
2864680991310,1cyclictest0-21swapper/211:00:212
2864680991310,1cyclictest0-21swapper/210:25:462
2864680991310,1cyclictest0-21swapper/208:30:452
286467999139,3cyclictest3851704-21mta-sts-daemon07:50:431
286467999139,3cyclictest2981012-21cpuspeed_turbos08:40:401
2864679991310,2cyclictest3851703-21mta-sts-daemon11:10:251
2864679991310,2cyclictest3834332-21rtkit-daemon10:32:011
2864679991310,2cyclictest3211043-21kthreadcore11:15:461
2864679991310,2cyclictest2912453-21gltestperf07:45:391
286467899139,3cyclictest2919089-21irqcore07:50:430
286467899135,3cyclictest501rcuop/207:43:200
2649091133,2phc2sys0-21swapper/307:35:443
2649091132,2phc2sys0-21swapper/309:30:503
2649091130,3phc2sys0-21swapper/311:26:383
2649091130,2phc2sys0-21swapper/312:38:303
2649091130,2phc2sys0-21swapper/311:30:463
2649091130,2phc2sys0-21swapper/311:30:463
2649091130,2phc2sys0-21swapper/310:18:483
2649091130,2phc2sys0-21swapper/309:28:263
2649091130,2phc2sys0-21swapper/309:16:153
2649091130,2phc2sys0-21swapper/308:59:163
2649091130,1phc2sys0-21swapper/310:42:083
2649091130,1phc2sys0-21swapper/307:11:433
286468099129,1cyclictest0-21swapper/210:35:382
2864680991210,1cyclictest0-21swapper/209:31:402
2864680991210,1cyclictest0-21swapper/208:40:032
2649091125,3phc2sys0-21swapper/310:00:003
2649091121,3phc2sys0-21swapper/311:47:393
2649091120,3phc2sys0-21swapper/310:51:253
2649091120,2phc2sys0-21swapper/312:23:463
2649091120,2phc2sys0-21swapper/310:28:063
2649091120,2phc2sys0-21swapper/308:38:513
2649091120,1phc2sys0-21swapper/310:24:093
2649091120,1phc2sys0-21swapper/309:47:053
2649091120,1phc2sys0-21swapper/307:23:583
286468099119,1cyclictest0-21swapper/212:20:242
286467999115,2cyclictest17350irq/127-ahci[0000:00:17.0]07:10:021
286467899118,2cyclictest0-21swapper/007:10:010
2649091114,3phc2sys0-21swapper/311:50:503
2649091114,3phc2sys0-21swapper/309:41:353
2649091114,3phc2sys0-21swapper/309:41:353
2649091111,2phc2sys0-21swapper/308:06:373
2649091110,2phc2sys0-21swapper/312:26:093
2649091110,2phc2sys0-21swapper/308:20:483
2649091101,3phc2sys0-21swapper/307:05:373
2649091101,2phc2sys0-21swapper/311:20:403
2649091101,2phc2sys0-21swapper/311:20:403
2649091101,2phc2sys0-21swapper/308:25:373
2649091100,3phc2sys0-21swapper/308:15:393
2649091100,3phc2sys0-21swapper/308:15:393
2649091100,2phc2sys0-21swapper/311:18:123
2649091100,2phc2sys0-21swapper/311:11:223
2649091100,2phc2sys0-21swapper/311:05:503
2649091100,2phc2sys0-21swapper/311:01:123
2649091100,2phc2sys0-21swapper/310:45:173
2649091100,2phc2sys0-21swapper/310:00:203
2649091100,2phc2sys0-21swapper/308:50:423
2649091100,2phc2sys0-21swapper/308:30:463
2649091100,2phc2sys0-21swapper/308:01:163
2649091100,2phc2sys0-21swapper/307:50:383
2649091100,2phc2sys0-21swapper/307:45:383
2649091100,2phc2sys0-21swapper/307:40:493
2649091100,2phc2sys0-21swapper/307:30:513
264909191,2phc2sys0-21swapper/310:32:353
264909191,2phc2sys0-21swapper/309:00:403
264909191,2phc2sys0-21swapper/308:45:403
264909190,2phc2sys0-21swapper/312:15:123
264909190,2phc2sys0-21swapper/309:05:493
264909190,2phc2sys0-21swapper/308:40:483
264909190,2phc2sys0-21swapper/308:00:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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