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2026-09-06 - 22:13
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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 Sun Sep 06, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
50201621670,3sleep30-21swapper/311:59:423
47832221130,3sleep1478328-21cron11:45:011
22606021090,2sleep30-21swapper/309:24:363
3134962820,1sleep1313497-21hostname10:14:291
4036592780,2sleep20-21swapper/211:04:412
3371092460,1sleep00-21swapper/010:24:460
2213291231,9phc2sys0-21swapper/312:34:223
37190992219,1cyclictest0-21swapper/211:40:092
37189992111,5cyclictest129642-21munin-plugin-st08:15:021
37188992114,2cyclictest191rcu_preempt09:54:180
2213291212,2phc2sys0-21swapper/307:49:423
37189992014,2cyclictest419007-21aten_repower_cu11:14:191
3718899205,4cyclictest310625-21find10:09:490
3718899201,2cyclictest191rcu_preempt10:59:420
3718999198,5cyclictest0-21swapper/111:30:031
37189991912,3cyclictest540345-21systemd-run12:20:021
3718899199,6cyclictest0-21swapper/011:29:420
3718899199,1cyclictest191rcu_preempt09:30:550
3718899191,6cyclictest269253-21apt-get09:49:190
37188991912,6cyclictest24617-21JS14:54:060
37188991911,7cyclictest778-21dbus-daemon10:05:010
37188991911,7cyclictest778-21dbus-daemon10:05:010
37188991911,7cyclictest377601-21kthreadcore10:49:410
2213291190,3phc2sys0-21swapper/312:14:193
2213291190,2phc2sys0-21swapper/309:44:103
2213291190,1phc2sys0-21swapper/312:08:383
533662180,1sleep10-21swapper/107:19:491
3719099183,10cyclictest0-21swapper/210:24:182
3719099182,13cyclictest3127812sleep210:13:152
3719099182,11cyclictest0-21swapper/210:39:202
3718999181,7cyclictest0-21swapper/110:09:201
37189991814,3cyclictest778-21dbus-daemon08:10:021
37189991814,3cyclictest24619-21llvmpipe-112:06:591
37189991811,3cyclictest325347-21kthreadcore10:19:421
3718899189,3cyclictest67211-21turbostat.cron07:34:560
3718899188,6cyclictest0-21swapper/009:35:140
3718899186,6cyclictest0-21swapper/011:04:190
3718899186,2cyclictest191rcu_preempt12:39:370
3718899186,2cyclictest191rcu_preempt12:39:370
37188991814,3cyclictest24619-21llvmpipe-111:40:590
37188991812,5cyclictest219636-21kthreadcore09:19:430
37188991812,2cyclictest495965-21kworker/0:2+rcu_gp12:25:020
37188991811,3cyclictest191rcu_preempt09:20:080
37188991811,1cyclictest932-1atopacctd11:49:420
37188991811,1cyclictest501rcuop/211:56:530
37188991811,1cyclictest501rcuop/210:50:340
3718899180,7cyclictest430922-21kthreadcore11:19:430
3718899180,2cyclictest191rcu_preempt12:14:490
3718899180,1cyclictest0-21swapper/007:39:460
2213291180,2phc2sys0-21swapper/311:34:353
2213291180,2phc2sys0-21swapper/310:36:293
440282170,1sleep20-21swapper/207:15:012
37190991715,1cyclictest0-21swapper/212:20:022
37190991714,1cyclictest0-21swapper/208:25:012
37190991713,2cyclictest0-21swapper/208:34:092
37189991714,2cyclictest778-21dbus-daemon09:19:471
37189991714,2cyclictest24615-21JS14:54:061
37189991713,3cyclictest510924-21kthreadcore12:04:411
37189991713,3cyclictest37185-21cyclictest07:39:451
37189991710,3cyclictest467492-21kthreadcore11:39:441
3718899175,2cyclictest491rcuog/208:29:180
3718899175,2cyclictest191rcu_preempt10:44:350
3718899175,2cyclictest191rcu_preempt09:29:440
3718899171,7cyclictest0-21swapper/010:34:200
3718899171,6cyclictest286819-21apt-get09:59:200
37188991714,2cyclictest64016-21kthreadcore07:29:400
37188991714,2cyclictest563253-21kthreadcore12:34:450
37188991711,5cyclictest205432-21diskmemload11:08:290
37188991711,2cyclictest143633-21kworker/u16:2+events_unbound09:44:430
37188991711,1cyclictest191rcu_preempt10:15:050
37188991710,1cyclictest501rcuop/211:51:030
37188991710,1cyclictest501rcuop/211:33:030
37188991710,1cyclictest501rcuop/211:20:170
2213291170,2phc2sys0-21swapper/310:54:163
3719099162,8cyclictest0-21swapper/211:14:182
3719099162,8cyclictest0-21swapper/210:29:192
3719099161,7cyclictest0-21swapper/212:24:192
37190991613,1cyclictest0-21swapper/209:37:472
37190991613,1cyclictest0-21swapper/209:32:142
37190991613,1cyclictest0-21swapper/207:50:022
3718999169,5cyclictest1011-21gdbus09:10:031
3718999168,4cyclictest542398-21apt12:24:181
3718999168,2cyclictest82050irq/121-eno111:20:021
3718999166,9cyclictest108689-21awk08:00:001
37189991613,2cyclictest37185-21cyclictest11:04:411
37189991612,3cyclictest90868-21kthreadcore07:49:411
37189991612,3cyclictest399661-21kworker/u16:0+nfsiod12:10:221
3718899166,6cyclictest339771-21/usr/sbin/munin10:29:480
3718899166,6cyclictest0-21swapper/008:55:470
3718899161,4cyclictest505211-21ssh12:00:140
37188991612,3cyclictest311323-21kworker/u16:3+nfsiod10:12:250
37188991610,4cyclictest192611-21cut09:04:370
37188991610,2cyclictest37389-21kworker/u16:1+xprtiod09:10:450
37188991610,1cyclictest501rcuop/212:29:240
2213291160,2phc2sys0-21swapper/312:24:203
3719099151,8cyclictest0-21swapper/212:29:192
3719099151,8cyclictest0-21swapper/211:59:192
3719099151,8cyclictest0-21swapper/209:49:192
3719099151,7cyclictest0-21swapper/211:54:202
3719099151,6cyclictest0-21swapper/211:34:192
37190991512,1cyclictest0-21swapper/212:10:012
37190991512,1cyclictest0-21swapper/211:47:552
37190991512,1cyclictest0-21swapper/211:10:012
37190991512,1cyclictest0-21swapper/208:10:142
37190991512,1cyclictest0-21swapper/208:09:412
37190991511,2cyclictest0-21swapper/208:29:402
37190991510,2cyclictest0-21swapper/209:16:542
3719099150,8cyclictest0-21swapper/211:19:202
3719099150,12cyclictest0-21swapper/208:54:202
3718999159,5cyclictest932-1atopacctd08:30:011
3718999158,5cyclictest376-21systemd-journal09:28:141
3718999154,9cyclictest163991-21awk08:40:011
37189991512,2cyclictest932-1atopacctd09:23:211
37189991512,2cyclictest60595-21latency_hist07:25:031
37189991512,2cyclictest380758-21ptp4l10:49:451
37189991512,2cyclictest37185-21cyclictest07:29:371
37189991512,2cyclictest346333-21systemd-run10:30:021
37189991512,2cyclictest24617-21JS14:54:061
37189991512,2cyclictest24472-21rtkit-daemon10:36:201
37189991512,2cyclictest143288-21systemd-run08:25:011
37189991511,3cyclictest82464-21gltestperf07:44:381
37189991511,3cyclictest72995-21kthreadcore07:34:431
37189991511,3cyclictest500441-21kthreadcore11:59:411
37189991511,3cyclictest440054-21kthreadcore11:24:411
37189991511,3cyclictest425848-21kworker/u16:4+nfsiod11:34:231
37189991511,3cyclictest40701-21kthreadcore07:14:431
37189991511,3cyclictest328877-21kworker/u16:1+nfsiod10:22:461
37189991511,3cyclictest288092-21irqrtprio09:59:401
37189991511,3cyclictest281713-21kthreadcore09:54:421
37189991511,3cyclictest196698-21kthreadcore09:04:431
37189991511,3cyclictest178456-21aten_repower_cu08:54:211
37189991511,3cyclictest171844-21cpuspeed_turbos08:49:361
37189991511,3cyclictest165785-21sed08:44:401
37189991511,3cyclictest143633-21kworker/u16:2+nfsiod10:56:361
3718899159,1cyclictest191rcu_preempt11:11:070
3718899157,3cyclictest136421-21kworker/0:0+rcu_gp08:50:020
3718899155,6cyclictest0-21swapper/007:16:510
37188991512,2cyclictest975-21in:imuxsock07:48:220
37188991512,2cyclictest171160-21systemd-run08:45:030
37188991512,2cyclictest120289-21kthreadcore08:09:410
37188991511,3cyclictest179634-21irqrtprio08:54:420
37188991511,1cyclictest601rcuop/307:54:470
37188991510,1cyclictest501rcuop/212:17:010
3718899150,4cyclictest0-21swapper/012:06:250
3718899150,4cyclictest0-21swapper/011:38:090
2213291150,6phc2sys0-21swapper/312:19:193
2213291150,2phc2sys0-21swapper/309:34:073
37190991412,1cyclictest0-21swapper/210:15:142
37190991411,1cyclictest0-21swapper/212:39:422
37190991411,1cyclictest0-21swapper/212:39:422
37190991411,1cyclictest0-21swapper/212:33:392
37190991411,1cyclictest0-21swapper/210:57:592
37190991411,1cyclictest0-21swapper/210:49:352
37190991411,1cyclictest0-21swapper/210:34:382
37190991411,1cyclictest0-21swapper/210:07:092
37190991411,1cyclictest0-21swapper/209:29:502
37190991411,1cyclictest0-21swapper/209:24:362
37190991411,1cyclictest0-21swapper/209:13:092
37190991411,1cyclictest0-21swapper/209:09:452
37190991411,1cyclictest0-21swapper/208:19:392
37190991411,1cyclictest0-21swapper/207:34:472
37190991411,1cyclictest0-21swapper/207:30:022
37190991411,1cyclictest0-21swapper/207:24:422
37190991411,1cyclictest0-21swapper/207:19:422
37190991410,2cyclictest0-21swapper/210:04:412
37190991410,2cyclictest0-21swapper/210:04:412
3718999148,4cyclictest82050irq/121-eno112:29:581
3718999147,6cyclictest24614-21JS14:54:061
37189991411,2cyclictest778-21dbus-daemon09:40:031
37189991411,2cyclictest561546-21kthreadcore12:34:431
37189991411,2cyclictest37369-21munin-plugin-st07:10:031
37189991411,2cyclictest351746-21kthreadcore10:34:431
37189991411,2cyclictest210817-21kthreadcore09:14:421
37189991410,3cyclictest96128-21fschecks_time07:54:381
37189991410,3cyclictest494057-21kthreadcore11:54:431
37189991410,3cyclictest399661-21kworker/u16:0+nfsiod11:45:431
37189991410,3cyclictest37389-21kworker/u16:1+nfsiod09:34:391
37189991410,3cyclictest369121-21kthreadcore10:44:411
37189991410,3cyclictest298839-21kthreadcore10:04:411
37189991410,3cyclictest298839-21kthreadcore10:04:411
37189991410,3cyclictest272839-21kthreadcore09:49:421
37189991410,3cyclictest190061-21kthreadcore08:59:421
3718999140,3cyclictest0-21swapper/112:39:121
3718999140,3cyclictest0-21swapper/112:39:121
3718899145,5cyclictest0-21swapper/008:02:080
3718899144,1cyclictest191rcu_preempt07:59:180
3718899142,3cyclictest37182-21munin-run07:10:010
37188991411,2cyclictest43587-21sendmail_mailqu07:14:470
37188991411,2cyclictest157732-21acpi08:39:180
37188991411,2cyclictest142801-21mailstats08:24:460
37188991411,2cyclictest132081-21kthreadcore08:19:400
3718899140,9cyclictest82957-21cut07:44:400
3718899140,8cyclictest58314-21tr07:24:420
2447398140,3rtkit-daemon383477-21sh10:53:571
2213291140,3phc2sys0-21swapper/307:39:203
2213291140,3phc2sys0-21swapper/307:34:193
2213291140,2phc2sys0-21swapper/310:57:553
2213291140,2phc2sys0-21swapper/310:30:013
2213291140,2phc2sys0-21swapper/310:19:183
2213291140,2phc2sys0-21swapper/310:08:383
2213291140,2phc2sys0-21swapper/309:39:233
2213291140,2phc2sys0-21swapper/307:54:143
3719099139,2cyclictest0-21swapper/207:44:382
3719099132,7cyclictest0-21swapper/210:54:182
3719099132,6cyclictest0-21swapper/209:59:192
3719099131,8cyclictest0-21swapper/209:44:202
3719099131,7cyclictest0-21swapper/211:39:202
37190991311,1cyclictest0-21swapper/210:44:412
37190991311,1cyclictest0-21swapper/209:54:482
37190991311,1cyclictest0-21swapper/207:54:422
37190991310,1cyclictest0-21swapper/212:14:422
37190991310,1cyclictest0-21swapper/211:24:402
37190991310,1cyclictest0-21swapper/208:59:402
37190991310,1cyclictest0-21swapper/208:44:402
37190991310,1cyclictest0-21swapper/208:39:432
37190991310,1cyclictest0-21swapper/208:04:322
37190991310,1cyclictest0-21swapper/207:39:422
3718999135,3cyclictest115588-21cat08:05:001
37189991310,2cyclictest411652-21kthreadcore11:09:401
37188991310,2cyclictest200295-21irqcore09:09:420
3718899130,8cyclictest150492-21sd-close08:30:060
3718899130,2cyclictest191rcu_preempt08:14:320
2213291132,2phc2sys0-21swapper/311:01:473
2213291131,5phc2sys0-21swapper/307:59:193
2213291131,2phc2sys0-21swapper/308:17:443
2213291130,5phc2sys0-21swapper/308:14:183
2213291130,3phc2sys0-21swapper/309:50:203
2213291130,3phc2sys0-21swapper/307:09:183
2213291130,2phc2sys0-21swapper/310:41:223
2213291130,2phc2sys0-21swapper/309:56:573
2213291130,2phc2sys0-21swapper/309:45:043
2213291130,2phc2sys0-21swapper/309:27:153
2213291130,2phc2sys0-21swapper/308:00:083
3719099129,1cyclictest0-21swapper/211:26:592
3719099129,1cyclictest0-21swapper/208:49:322
3719099121,6cyclictest0-21swapper/212:04:182
37190991210,1cyclictest0-21swapper/209:04:412
37190991210,1cyclictest0-21swapper/208:00:012
2213291123,2phc2sys0-21swapper/311:14:563
2213291121,4phc2sys0-21swapper/307:29:173
2213291120,2phc2sys0-21swapper/311:18:243
2213291120,2phc2sys0-21swapper/310:03:303
2213291120,2phc2sys0-21swapper/310:03:303
2213291111,2phc2sys0-21swapper/308:24:413
2213291110,2phc2sys0-21swapper/312:37:163
2213291110,2phc2sys0-21swapper/312:37:163
2213291110,2phc2sys0-21swapper/311:42:283
2213291110,2phc2sys0-21swapper/311:25:383
2213291110,2phc2sys0-21swapper/308:25:053
2213291110,2phc2sys0-21swapper/307:45:013
2213291110,1phc2sys0-21swapper/307:16:483
2213291102,2phc2sys0-21swapper/308:44:413
2213291101,3phc2sys0-21swapper/310:24:183
2213291101,2phc2sys0-21swapper/311:24:443
2213291101,2phc2sys0-21swapper/310:47:083
2213291100,7phc2sys506043-21chrt12:02:033
2213291100,3phc2sys0-21swapper/311:07:323
2213291100,2phc2sys0-21swapper/312:28:063
2213291100,2phc2sys0-21swapper/311:51:343
2213291100,2phc2sys0-21swapper/311:38:363
2213291100,2phc2sys0-21swapper/310:12:323
2213291100,2phc2sys0-21swapper/309:10:033
2213291100,2phc2sys0-21swapper/308:49:183
2213291100,2phc2sys0-21swapper/308:39:403
2213291100,2phc2sys0-21swapper/308:09:183
2213291100,1phc2sys0-21swapper/308:58:213
221329191,3phc2sys0-21swapper/309:02:253
221329191,2phc2sys0-21swapper/310:30:203
221329190,2phc2sys0-21swapper/311:45:533
221329190,2phc2sys0-21swapper/309:15:043
221329190,2phc2sys0-21swapper/309:11:273
221329190,2phc2sys0-21swapper/308:32:593
221329190,2phc2sys0-21swapper/307:23:173
221329190,2phc2sys0-21swapper/307:14:393
221329180,3phc2sys0-21swapper/308:54:393
371909975,1cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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