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2026-03-14 - 05:21
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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 rackeslot2.osadl.org (updated Sat Mar 14, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
373126321110,2sleep30-21swapper/319:56:493
408313721080,1sleep14083140-21aten_repower_en23:41:351
367518021060,2sleep30-21swapper/319:15:023
3668607993017,8cyclictest3914036-21latency_hist22:05:010
366860799288,10cyclictest0-21swapper/022:41:340
37196572270,1sleep00-21swapper/019:50:010
3668607992711,9cyclictest0-21swapper/023:45:000
366860799268,2cyclictest0-21swapper/000:25:190
366860799260,18cyclictest3918630-21kthreadcore22:06:410
3668607992519,5cyclictest1326-21systemd-logind23:55:010
3668607992514,10cyclictest4121311-21kthreadcore00:01:410
3668607992511,13cyclictest3970089-21kthreadcore22:36:410
366860799248,10cyclictest4068688-21kthreadcore23:31:400
3668607992418,5cyclictest3896499-21grep21:55:020
3668607992416,7cyclictest3838848-21cut21:21:410
3668607992414,9cyclictest257-21systemd-journal21:49:550
3668607992413,10cyclictest3944855-21kthreadcore22:21:420
3668609992319,2cyclictest0-21swapper/219:25:002
3668608992320,2cyclictest1290-21dbus-daemon20:30:021
3668607992312,7cyclictest191rcu_preempt00:21:380
3668607992311,11cyclictest0-21swapper/022:20:000
366860799229,12cyclictest3950255-21/usr/sbin/munin22:26:400
366860799229,12cyclictest0-21swapper/022:55:010
366860799229,11cyclictest0-21swapper/000:15:010
366860799223,6cyclictest16-21ksoftirqd/019:51:380
366860799220,4cyclictest3898655-21irqrtprio21:56:390
39957652210,2sleep30-21swapper/322:51:393
3668608992118,2cyclictest3707176-21sendmail19:40:001
3668608992117,3cyclictest1426-21gdbus21:30:011
3668608992115,5cyclictest3675821-21cut19:15:021
366860799214,6cyclictest0-21swapper/021:02:430
366860799211,9cyclictest3931654-21cat22:15:020
366860799211,7cyclictest3689942-21df19:26:370
366860799211,7cyclictest3689942-21df19:26:370
3668607992110,9cyclictest4050655-21kthreadcore23:21:410
2902298210,5rtkit-daemon0-21swapper/021:26:280
2902298210,4rtkit-daemon3668605-21cyclictest19:37:570
2902298210,3rtkit-daemon3668605-21cyclictest23:38:510
2902298210,3rtkit-daemon3668605-21cyclictest20:31:290
3668608992018,1cyclictest3668605-21cyclictest00:30:011
3668608992014,5cyclictest3437812-21kworker/u16:1-writeback22:56:361
366860799209,9cyclictest0-21swapper/023:26:370
366860799207,3cyclictest501rcuop/220:35:080
366860799206,3cyclictest0-21swapper/023:16:390
366860799206,2cyclictest501rcuop/219:13:490
366860799206,1cyclictest491rcuog/220:26:400
366860799206,1cyclictest191rcu_preempt21:10:180
366860799205,9cyclictest0-21swapper/021:42:300
366860799205,9cyclictest0-21swapper/021:42:300
366860799205,3cyclictest191rcu_preempt23:49:480
366860799205,2cyclictest4022522-21irqrtprio23:06:400
366860799205,1cyclictest191rcu_preempt22:31:280
366860799203,6cyclictest16-21ksoftirqd/019:15:030
3668607992014,5cyclictest3993763-21systemd-run22:50:010
3668607992014,5cyclictest3795465-21kthreadcore20:51:420
2902298200,2rtkit-daemon3668605-21cyclictest23:10:270
2902298200,2rtkit-daemon3668605-21cyclictest00:39:020
2902298200,2rtkit-daemon3668605-21cyclictest00:19:370
2649091200,2phc2sys0-21swapper/300:10:273
366860899193,4cyclictest3826963-21apt-get21:16:331
366860899193,10cyclictest3964508-21cat22:31:461
3668608991916,2cyclictest4144189-21apt-key00:15:011
3668608991916,2cyclictest3861142-21apt-key21:35:011
3668608991916,2cyclictest0-21swapper/120:10:001
3668608991915,3cyclictest3779852-21grep20:36:471
3668608991913,2cyclictest134050irq/121-eno121:50:011
3668608991910,2cyclictest4068689-21kthreadcore23:31:401
366860799199,1cyclictest601rcuop/320:48:270
366860799196,3cyclictest501rcuop/220:01:060
366860799194,5cyclictest0-21swapper/019:56:140
3668607991913,5cyclictest4020178-21grep23:05:000
3668607991913,5cyclictest3701093-21turbostat.cron19:35:000
366860799190,3cyclictest0-21swapper/021:16:330
2649091190,2phc2sys0-21swapper/321:45:043
2649091190,2phc2sys0-21swapper/300:28:003
3668609991816,1cyclictest0-21swapper/220:35:022
3668609991815,1cyclictest0-21swapper/219:56:432
3668609991815,1cyclictest0-21swapper/200:35:002
3668609991815,1cyclictest0-21swapper/200:05:012
3668609991814,2cyclictest0-21swapper/222:01:412
3668609991811,3cyclictest0-21swapper/221:01:342
366860899187,6cyclictest36-21ksoftirqd/123:09:261
366860899186,7cyclictest4130567-21kthreadcore00:06:411
366860899183,10cyclictest4074667-21expr23:36:361
3668608991815,2cyclictest4046815-21unin-run23:20:011
3668608991815,2cyclictest1-21systemd19:43:451
3668608991815,2cyclictest0-21swapper/120:55:001
3668608991815,2cyclictest0-21swapper/100:21:451
3668608991814,3cyclictest3823502-21unixbench_multi21:11:471
3668608991814,3cyclictest0-21swapper/120:20:001
3668608991814,1cyclictest134050irq/121-eno123:22:071
3668608991811,1cyclictest3940279-21kworker/1:2+events_freezable22:22:111
366860799189,7cyclictest0-21swapper/000:00:020
366860799188,1cyclictest601rcuop/320:56:440
366860799186,5cyclictest1326-21systemd-logind21:40:000
366860799186,4cyclictest0-21swapper/000:31:430
366860799182,2cyclictest4003308-21ssh22:55:560
3668607991812,5cyclictest3855435-21kthreadcore21:31:400
3668607991812,5cyclictest1296-21polkitd20:10:000
3668607991811,5cyclictest3813870-21kthreadcore21:06:390
3668607991810,1cyclictest601rcuop/319:40:300
366860799180,16cyclictest0-21swapper/020:41:340
26490911810,2phc2sys0-21swapper/320:06:373
2649091180,4phc2sys0-21swapper/319:16:483
2649091180,2phc2sys0-21swapper/322:19:303
3668609991715,1cyclictest0-21swapper/221:45:012
3668609991715,1cyclictest0-21swapper/221:45:012
3668609991714,1cyclictest0-21swapper/223:55:002
3668609991714,1cyclictest0-21swapper/223:41:362
3668609991714,1cyclictest0-21swapper/223:32:462
3668609991714,1cyclictest0-21swapper/222:26:422
3668609991714,1cyclictest0-21swapper/221:36:402
3668609991714,1cyclictest0-21swapper/221:26:412
3668609991714,1cyclictest0-21swapper/220:20:002
3668609991714,1cyclictest0-21swapper/219:36:352
3668609991714,1cyclictest0-21swapper/200:21:432
3668609991712,2cyclictest0-21swapper/223:56:342
366860999170,14cyclictest3975519-21chrt22:39:402
366860899177,1cyclictest491rcuog/223:46:021
366860899176,1cyclictest134050irq/121-eno122:06:331
3668608991714,2cyclictest4031122-21grep23:11:391
3668608991714,2cyclictest3804596-21cron21:00:001
3668608991714,2cyclictest3757171-21gltestperf20:21:371
3668608991714,2cyclictest1326-21systemd-logind21:10:011
366860799179,1cyclictest601rcuop/320:16:130
366860799176,3cyclictest4055782-21kworker/u16:3+xprtiod00:06:060
366860799175,2cyclictest501rcuop/220:22:500
3668607991711,5cyclictest3744175-21tail20:11:350
2649091170,3phc2sys0-21swapper/322:33:013
2649091170,2phc2sys0-21swapper/300:18:383
3668609991613,1cyclictest0-21swapper/223:37:282
3668609991613,1cyclictest0-21swapper/223:29:582
3668609991613,1cyclictest0-21swapper/223:23:132
3668609991613,1cyclictest0-21swapper/223:14:142
3668609991613,1cyclictest0-21swapper/223:06:422
3668609991613,1cyclictest0-21swapper/222:46:442
3668609991613,1cyclictest0-21swapper/222:41:342
3668609991613,1cyclictest0-21swapper/222:21:392
3668609991613,1cyclictest0-21swapper/221:56:372
3668609991613,1cyclictest0-21swapper/221:35:012
3668609991613,1cyclictest0-21swapper/221:10:002
3668609991613,1cyclictest0-21swapper/220:51:352
3668609991613,1cyclictest0-21swapper/220:45:012
3668609991613,1cyclictest0-21swapper/220:25:022
3668609991613,1cyclictest0-21swapper/200:16:402
366860899169,2cyclictest134050irq/121-eno121:21:461
366860899168,1cyclictest134050irq/121-eno122:36:441
366860899166,6cyclictest0-21swapper/122:49:101
366860899166,5cyclictest134050irq/121-eno120:46:341
366860899166,5cyclictest134050irq/121-eno120:11:361
366860899166,1cyclictest491rcuog/222:04:061
366860899163,5cyclictest4150897-21cat00:16:451
3668608991613,2cyclictest4100580-21runrttasks23:50:561
3668608991613,2cyclictest4057536-21grep23:26:401
3668608991613,2cyclictest4013532-21irqcore23:01:381
3668608991613,2cyclictest3980167-21kthreadcore22:41:411
3668608991613,2cyclictest3933522-21idleruntime22:16:391
3668608991613,2cyclictest3866264-21kthreadcore21:36:431
3668608991613,2cyclictest1290-21dbus-daemon22:00:011
3668608991613,2cyclictest1286-21avahi-daemon00:05:021
3668608991612,3cyclictest3721131-21irqrtprio19:51:411
3668608991612,3cyclictest1288-1atopacctd22:26:431
3668608991611,4cyclictest3732342-21cpuspeed_turbos20:01:341
3668608991610,5cyclictest4172465-21cpuspeed_turbos00:31:351
366860799166,5cyclictest0-21swapper/019:21:340
2649091161,2phc2sys0-21swapper/322:25:553
2649091160,2phc2sys0-21swapper/322:00:343
2649091160,2phc2sys0-21swapper/321:28:513
2649091160,1phc2sys0-21swapper/322:20:463
3668609991513,1cyclictest0-21swapper/200:10:022
3668609991512,2cyclictest0-21swapper/200:11:462
3668609991512,1cyclictest0-21swapper/222:51:422
3668609991512,1cyclictest0-21swapper/221:11:482
3668609991512,1cyclictest0-21swapper/221:00:002
3668609991511,1cyclictest0-21swapper/200:36:332
366860899158,1cyclictest2902298rtkit-daemon21:40:381
366860899158,1cyclictest2902298rtkit-daemon21:40:381
366860899151,4cyclictest3896441-21munin-run21:55:011
3668608991512,2cyclictest4183441-21kthreadcore00:36:401
3668608991512,2cyclictest3997722-21kthreadcore22:51:421
3668608991512,2cyclictest3805099-21aten_repower_cu21:01:341
3668608991512,2cyclictest3685480-21kthreadcore19:21:391
3668608991511,3cyclictest3925171-21kthreadcore22:11:401
366860899150,2cyclictest0-21swapper/123:56:341
366860799159,5cyclictest1-21systemd19:10:020
2649091150,2phc2sys0-21swapper/323:50:003
3668609991412,1cyclictest0-21swapper/223:01:342
3668609991412,1cyclictest0-21swapper/221:46:432
3668609991412,1cyclictest0-21swapper/219:15:032
3668609991411,1cyclictest0-21swapper/223:46:382
3668609991411,1cyclictest0-21swapper/222:56:352
3668609991411,1cyclictest0-21swapper/222:31:462
3668609991411,1cyclictest0-21swapper/222:06:352
3668609991411,1cyclictest0-21swapper/221:16:352
3668609991411,1cyclictest0-21swapper/220:06:332
3668609991411,1cyclictest0-21swapper/220:01:382
3668609991411,1cyclictest0-21swapper/219:51:362
3668609991411,1cyclictest0-21swapper/219:41:352
3668609991411,1cyclictest0-21swapper/219:31:412
3668609991411,1cyclictest0-21swapper/219:26:392
3668609991411,1cyclictest0-21swapper/219:26:392
3668609991411,1cyclictest0-21swapper/219:11:342
3668609991410,2cyclictest0-21swapper/221:21:342
366860899142,5cyclictest0-21swapper/119:31:411
3668608991411,2cyclictest3781304-21tail20:41:381
3668608991411,2cyclictest3768549-21aten_repower_cu20:31:341
3668608991411,2cyclictest3714426-21sh19:46:361
3668608991411,2cyclictest3694484-21switchtime19:26:471
3668608991411,2cyclictest3694484-21switchtime19:26:471
3668608991411,2cyclictest1288-1atopacctd19:16:361
3668608991410,3cyclictest3728988-21kthreadcore19:56:431
2649091141,3phc2sys0-21swapper/323:56:333
2649091140,2phc2sys0-21swapper/323:27:483
2649091140,2phc2sys0-21swapper/321:24:553
2649091140,1phc2sys0-21swapper/320:59:463
37922642130,1sleep30-21swapper/320:49:563
3668609991311,1cyclictest0-21swapper/223:16:332
3668609991311,1cyclictest0-21swapper/222:16:422
3668609991311,1cyclictest0-21swapper/221:51:352
3668609991311,1cyclictest0-21swapper/220:36:412
3668609991311,1cyclictest0-21swapper/220:26:352
3668609991310,1cyclictest0-21swapper/222:11:332
3668609991310,1cyclictest0-21swapper/220:46:352
3668609991310,1cyclictest0-21swapper/220:11:412
3668609991310,1cyclictest0-21swapper/219:46:392
3668609991310,1cyclictest0-21swapper/200:26:392
2649091133,2phc2sys0-21swapper/323:41:383
2649091130,3phc2sys0-21swapper/321:16:333
2649091130,2phc2sys0-21swapper/322:14:493
2649091130,2phc2sys0-21swapper/321:55:383
2649091130,1phc2sys0-21swapper/319:37:393
366860899127,3cyclictest0-21swapper/119:10:021
2649091122,2phc2sys0-21swapper/321:36:263
2649091121,3phc2sys0-21swapper/323:39:173
2649091120,3phc2sys0-21swapper/323:33:483
2649091120,2phc2sys0-21swapper/323:19:303
2649091120,2phc2sys0-21swapper/321:44:363
2649091120,2phc2sys0-21swapper/321:44:363
2649091120,1phc2sys0-21swapper/323:51:283
2649091120,1phc2sys0-21swapper/322:09:443
2649091120,1phc2sys0-21swapper/321:31:003
2649091120,1phc2sys0-21swapper/320:00:483
2649091112,3phc2sys0-21swapper/320:51:343
2649091112,2phc2sys0-21swapper/321:01:473
2649091111,2phc2sys0-21swapper/323:05:273
2649091111,2phc2sys0-21swapper/322:36:463
2649091111,2phc2sys0-21swapper/319:46:333
2649091110,2phc2sys0-21swapper/322:46:553
2649091110,2phc2sys0-21swapper/321:14:493
2649091110,2phc2sys0-21swapper/320:30:013
2649091110,1phc2sys0-21swapper/321:50:093
2649091110,1phc2sys0-21swapper/319:30:423
366860999108,1cyclictest0-21swapper/219:10:022
2649091101,3phc2sys0-21swapper/320:36:333
2649091101,2phc2sys0-21swapper/323:11:483
2649091101,2phc2sys0-21swapper/322:57:503
2649091101,2phc2sys0-21swapper/300:06:353
2649091100,4phc2sys0-21swapper/300:01:333
2649091100,2phc2sys0-21swapper/323:22:023
2649091100,2phc2sys0-21swapper/323:02:513
2649091100,2phc2sys0-21swapper/320:42:033
2649091100,2phc2sys0-21swapper/320:31:333
2649091100,2phc2sys0-21swapper/319:45:013
2649091100,2phc2sys0-21swapper/300:38:023
2649091100,2phc2sys0-21swapper/300:21:553
264909191,2phc2sys0-21swapper/319:51:383
264909191,2phc2sys0-21swapper/319:26:453
264909191,2phc2sys0-21swapper/319:26:453
264909190,3phc2sys0-21swapper/319:06:333
264909190,2phc2sys0-21swapper/322:40:103
264909190,2phc2sys0-21swapper/321:06:353
264909190,2phc2sys0-21swapper/320:16:023
264909190,2phc2sys0-21swapper/320:11:343
264909190,2phc2sys0-21swapper/319:24:563
264909190,2phc2sys0-21swapper/300:31:523
264909180,2phc2sys0-21swapper/320:21:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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