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2026-06-25 - 19:00
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot6.osadl.org (updated Thu Jun 25, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44621999129107,20cyclictest535533-21kworker/u8:0+flush-179:011:45:011
44621699124117,5cyclictest512524-21kworker/u8:3+events_unbound10:35:010
44621999118109,6cyclictest522563-21latency_hist11:05:011
44621699117106,8cyclictest468507-21latency_hist08:20:010
44621999115105,7cyclictest455769-21latency_hist07:40:011
44621999113104,6cyclictest488426-21kworker/u8:0+flush-179:009:25:151
4462169911390,20cyclictest530516-21latency_hist11:30:010
4462169910798,7cyclictest495033-21kworker/u8:2+flush-179:010:15:000
4462169910595,6cyclictest465350-21kworker/u8:3+flush-179:008:30:010
4462199910390,11cyclictest488426-21kworker/u8:0+flush-179:009:40:001
4462199910293,6cyclictest493391-21latency_hist09:35:011
4462169910193,5cyclictest495033-21kworker/u8:2+events_unbound10:25:230
4462169910189,9cyclictest486753-21kworker/u8:3+events_unbound09:20:010
4462169910189,9cyclictest486753-21kworker/u8:3+events_unbound09:20:010
4462199910092,5cyclictest507712-21latency_hist10:20:011
446216999890,5cyclictest523608-21kworker/u8:1+flush-179:011:15:150
446216999887,8cyclictest454121-21kworker/u8:1+flush-179:008:35:000
446219999787,8cyclictest507684-21kworker/u8:0+flush-179:010:40:001
446219999486,6cyclictest495033-21kworker/u8:2+flush-179:010:25:001
446219999484,8cyclictest456027-21apt-get07:40:121
446216999475,15cyclictest1213033-21systemd-journal08:25:000
446219999383,7cyclictest523608-21kworker/u8:1+flush-179:011:20:011
446216999384,6cyclictest465350-21kworker/u8:3+events_unbound08:45:240
446216999285,5cyclictest480181-21kworker/u8:0+flush-179:009:10:220
446216999185,3cyclictest540287-21kworker/u8:1+flush-179:012:10:180
446216999183,5cyclictest535792-21kworker/u8:3+flush-179:012:25:150
446216999183,5cyclictest523608-21kworker/u8:1+flush-179:011:10:240
446216999181,7cyclictest464266-21diskstats08:05:160
446216999177,10cyclictest510-21rs:main0
446216999084,4cyclictest524184-21kworker/u8:2+flush-179:011:40:240
446216999083,5cyclictest488426-21kworker/u8:0+flush-179:009:25:250
446216999083,4cyclictest484252-21kworker/u8:1+flush-179:009:35:180
446219998980,6cyclictest480136-21latency_hist08:55:011
446216998982,5cyclictest495033-21kworker/u8:2+flush-179:010:40:200
446216998882,4cyclictest473244-21kworker/u8:2+flush-179:008:55:150
446216998880,6cyclictest451607-21kworker/u8:0+flush-179:007:45:000
446216998779,5cyclictest451607-21kworker/u8:0+events_unbound07:25:240
446216998680,4cyclictest528974-21kworker/u8:3+flush-179:011:30:160
446216998678,5cyclictest535533-21kworker/u8:0+events_unbound11:50:240
446219998576,6cyclictest490218-21latency_hist09:25:011
446219998474,8cyclictest517779-21apt-get10:50:111
446219998375,5cyclictest551455-21latency_hist12:35:011
446216998376,5cyclictest451607-21kworker/u8:0+flush-179:007:45:150
446219998275,5cyclictest503204-21apt-get10:05:101
446216998275,5cyclictest501616-21apt-get10:00:120
446216998275,4cyclictest512524-21kworker/u8:3+events_unbound10:35:190
446216998274,4cyclictest473244-21kworker/u8:2+flush-179:008:50:220
446216998069,8cyclictest510-21rs:main0
446216997961,7cyclictest519899-21kworker/u8:3+events_unbound11:05:130
446219997868,8cyclictest454121-21kworker/u8:1+flush-179:007:55:241
446216997872,4cyclictest454121-21kworker/u8:1+flush-179:008:00:220
446216997867,7cyclictest446152-21kworker/u8:3+events_unbound07:20:140
446216997772,3cyclictest488426-21kworker/u8:0+flush-179:009:45:160
446216997771,4cyclictest486753-21kworker/u8:3+flush-179:009:20:160
446216997771,4cyclictest454121-21kworker/u8:1+flush-179:007:55:160
446219997666,7cyclictest458975-21kworker/u8:3+events_unbound07:55:001
446216997663,5cyclictest498405-21kworker/u8:1+events_unbound09:50:130
446216997568,5cyclictest484252-21kworker/u8:1+flush-179:009:30:260
446216997567,6cyclictest507684-21kworker/u8:0+events_unbound10:50:240
446216997565,7cyclictest535792-21kworker/u8:3+flush-179:012:15:160
446219997459,11cyclictest532103-21latency_hist11:35:001
446216997466,6cyclictest483331-21latency_hist09:05:020
446219997367,4cyclictest535792-21kworker/u8:3+flush-179:012:05:151
446216997367,4cyclictest483340-21apt-get09:05:030
446216997365,5cyclictest519899-21kworker/u8:3+flush-179:010:55:260
446216997365,5cyclictest507684-21kworker/u8:0+flush-179:010:45:200
446216997363,7cyclictest488426-21kworker/u8:0+events_unbound09:45:010
446219997265,5cyclictest524184-21kworker/u8:2+flush-179:011:40:011
446219997161,7cyclictest525734-21latency_hist11:15:001
446216997166,3cyclictest519899-21kworker/u8:3+flush-179:011:00:210
446219996961,6cyclictest495033-21kworker/u8:2+flush-179:010:45:011
446219996958,9cyclictest451607-21kworker/u8:0+flush-179:007:45:211
446219996954,12cyclictest510-21rs:main1
44621999690,66cyclictest477008-21munin-run08:45:001
446216996962,5cyclictest542174-21apt-get12:05:110
446219996858,8cyclictest481999-21apt-get09:00:101
446216996854,5cyclictest454121-21kworker/u8:1+events_unbound08:45:000
446216996760,6cyclictest454121-21kworker/u8:1+flush-179:007:35:170
446219996658,5cyclictest519625-21apt-get10:55:121
446219996556,7cyclictest465562-21apt-get08:10:111
446219996454,7cyclictest512488-21latency_hist10:35:011
446216996358,3cyclictest535792-21kworker/u8:3+flush-179:011:55:240
446216996357,4cyclictest451607-21kworker/u8:0+flush-179:007:30:160
446216996351,9cyclictest1213033-21systemd-journal12:25:000
446219996251,8cyclictest510-21rs:main1
446216996257,4cyclictest430059-21kworker/u8:2+flush-179:007:15:160
446216996250,8cyclictest510-21rs:main0
446219996152,7cyclictest450967-21latency_hist07:25:011
446216996151,7cyclictest430059-21kworker/u8:2+flush-179:007:10:210
446216996051,7cyclictest535533-21kworker/u8:0+flush-179:011:50:000
446219995953,5cyclictest480181-21kworker/u8:0+flush-179:009:10:151
446219995953,4cyclictest488426-21kworker/u8:0+flush-179:009:40:241
446219995952,5cyclictest540337-21latency_hist12:00:001
446219995949,7cyclictest540287-21kworker/u8:1+events_unbound12:00:151
446219995946,9cyclictest484252-21kworker/u8:1+flush-179:009:15:211
446219995946,9cyclictest484252-21kworker/u8:1+flush-179:009:15:211
446216995953,4cyclictest495033-21kworker/u8:2+flush-179:010:15:230
446219995846,9cyclictest516176-21/usr/sbin/munin10:45:231
446216995844,10cyclictest1213033-21systemd-journal12:33:130
446219995750,5cyclictest502024-21kworker/u8:1+flush-179:010:05:011
446216995748,7cyclictest541920-21latency_hist12:05:010
446216995742,6cyclictest549847-21kworker/u8:0+events_unbound12:35:200
446219995651,4cyclictest509569-21apt-get10:25:111
446219995645,9cyclictest495033-21kworker/u8:2+events_unbound10:00:001
446219995546,7cyclictest454121-21kworker/u8:1+flush-179:008:25:171
446216995550,3cyclictest499788-21kworker/u8:3+events_unbound09:55:200
446216995347,4cyclictest495033-21kworker/u8:2+events_unbound10:05:230
446219995242,7cyclictest465305-21latency_hist08:10:011
446223995149,1cyclictest0-21swapper/212:34:582
446219995043,5cyclictest535792-21kworker/u8:3+events_unbound12:15:221
446219995041,7cyclictest467147-21apt-get08:15:131
446219995040,8cyclictest447726-21apt-get07:13:011
4577091470,13ptp4l441ktimers/307:10:013
4577091470,13ptp4l441ktimers/307:10:003
446219994738,5cyclictest321-21hwrng08:34:591
446219994737,7cyclictest528930-21latency_hist11:25:021
446216994742,4cyclictest458975-21kworker/u8:3+events_unbound07:50:240
446219994639,5cyclictest465350-21kworker/u8:3+flush-179:008:40:001
446219994533,10cyclictest430059-21kworker/u8:2+flush-179:007:15:231
44621999452,4cyclictest546952-21apt-get12:20:131
446219994433,9cyclictest535533-21kworker/u8:0+flush-179:011:50:231
446223994338,2cyclictest0-21swapper/211:46:002
446219994340,2cyclictest0-21swapper/111:45:591
446219994338,4cyclictest545132-21kworker/u8:2+flush-179:012:25:271
446219994238,3cyclictest454121-21kworker/u8:1+flush-179:008:20:211
44621999410,40cyclictest498185-21turbostat09:54:561
446216994137,3cyclictest495033-21kworker/u8:2+flush-179:010:20:260
44622399400,36cyclictest0-21swapper/208:38:592
446219994035,3cyclictest714-21Xorg07:31:591
44621999400,38cyclictest714-21Xorg12:13:001
446216994031,5cyclictest0-21swapper/011:24:000
44622699390,37cyclictest504539-21turbostat10:10:013
44622399390,37cyclictest0-21swapper/212:29:592
44622399390,36cyclictest0-21swapper/209:44:552
44622399390,35cyclictest0-21swapper/208:59:552
446219993934,3cyclictest714-21Xorg11:25:591
446226993836,1cyclictest0-21swapper/311:39:593
446226993833,4cyclictest509325-21turbostat10:25:003
44622399380,36cyclictest0-21swapper/209:54:562
44622399380,35cyclictest0-21swapper/212:12:592
44622399380,35cyclictest0-21swapper/210:50:582
446219993830,5cyclictest495033-21kworker/u8:2+events_unbound09:50:011
446226993735,1cyclictest0-21swapper/310:39:003
446226993734,2cyclictest0-21swapper/310:18:593
44622699370,36cyclictest0-21swapper/311:46:583
446223993734,2cyclictest0-21swapper/207:31:592
446223993733,2cyclictest0-21swapper/209:09:562
44622399370,35cyclictest0-21swapper/208:55:002
44622399370,2cyclictest0-21swapper/209:57:002
446219993734,2cyclictest0-21swapper/109:09:561
446219993733,3cyclictest495033-21kworker/u8:2+events_unbound10:13:001
446226993634,1cyclictest0-21swapper/312:11:593
446226993634,1cyclictest0-21swapper/308:08:003
446226993633,2cyclictest0-21swapper/312:33:593
446226993630,5cyclictest473278-21turbostat08:35:003
44622699360,35cyclictest0-21swapper/312:08:593
44622699360,35cyclictest0-21swapper/311:58:003
44622699360,35cyclictest0-21swapper/311:08:003
44622699360,29cyclictest0-21swapper/311:18:583
44622699360,1cyclictest0-21swapper/308:40:593
44622699360,1cyclictest0-21swapper/307:24:583
446223993632,2cyclictest0-21swapper/207:47:592
446226993533,1cyclictest0-21swapper/310:57:003
446226993533,1cyclictest0-21swapper/309:33:593
446226993532,2cyclictest0-21swapper/308:49:593
446226993532,2cyclictest0-21swapper/307:30:593
446226993528,5cyclictest471686-21turbostat08:30:003
44622699350,1cyclictest0-21swapper/307:52:003
446223993533,1cyclictest0-21swapper/211:34:592
446223993532,2cyclictest0-21swapper/211:25:592
446223993532,2cyclictest0-21swapper/210:59:002
446223993532,2cyclictest0-21swapper/207:10:592
446223993531,2cyclictest0-21swapper/207:36:592
446219993526,6cyclictest507684-21kworker/u8:0+flush-179:011:10:001
446226993432,1cyclictest0-21swapper/311:26:003
446226993432,1cyclictest0-21swapper/309:55:593
446226993432,1cyclictest0-21swapper/308:19:593
446226993431,2cyclictest0-21swapper/309:36:593
446226993431,2cyclictest0-21swapper/308:39:553
446223993431,2cyclictest0-21swapper/211:13:002
446223993431,2cyclictest0-21swapper/209:04:592
446223993430,1cyclictest0-21swapper/211:19:592
446226993331,1cyclictest0-21swapper/310:28:583
446223993330,2cyclictest0-21swapper/207:23:582
44622399330,29cyclictest0-21swapper/209:10:122
446219993330,2cyclictest481102-21needreboot08:55:191
44621999331,4cyclictest29-21ksoftirqd/108:45:121
446226993231,1cyclictest0-21swapper/307:20:003
44622399320,29cyclictest0-21swapper/209:35:592
44622399320,28cyclictest0-21swapper/211:35:012
44622399320,28cyclictest0-21swapper/210:45:132
44622399320,27cyclictest0-21swapper/208:45:122
446226993129,1cyclictest0-21swapper/312:26:593
446226993128,2cyclictest0-21swapper/310:30:593
446223993128,2cyclictest0-21swapper/212:38:002
44622399310,29cyclictest0-21swapper/209:33:592
44622399310,29cyclictest0-21swapper/209:20:022
446226993028,1cyclictest0-21swapper/311:42:003
446226993028,1cyclictest0-21swapper/307:25:593
446226993027,2cyclictest0-21swapper/308:20:593
446223993028,1cyclictest0-21swapper/212:00:002
446223993026,2cyclictest0-21swapper/210:20:132
44622399300,2cyclictest0-21swapper/208:26:592
44622399300,28cyclictest0-21swapper/210:35:112
44622399300,27cyclictest0-21swapper/211:05:102
44622399300,27cyclictest0-21swapper/210:25:132
44622399300,27cyclictest0-21swapper/208:05:122
44621999300,28cyclictest714-21Xorg07:26:591
446226992927,1cyclictest0-21swapper/309:20:133
446226992926,2cyclictest0-21swapper/310:00:133
446226992926,2cyclictest0-21swapper/309:04:593
44622699290,28cyclictest0-21swapper/312:15:143
44622699290,27cyclictest0-21swapper/312:35:123
44622699290,27cyclictest0-21swapper/311:30:123
44622699290,27cyclictest0-21swapper/311:20:123
446223992926,2cyclictest0-21swapper/211:00:132
446223992926,2cyclictest0-21swapper/208:40:132
44622399290,21cyclictest0-21swapper/212:05:132
446226992826,1cyclictest0-21swapper/309:29:593
446226992825,2cyclictest0-21swapper/312:24:593
446226992825,2cyclictest0-21swapper/309:18:593
446226992825,2cyclictest0-21swapper/309:18:593
44622699280,2cyclictest0-21swapper/310:40:123
44622699280,26cyclictest0-21swapper/309:45:123
44622699280,26cyclictest0-21swapper/309:40:133
44622699280,26cyclictest0-21swapper/308:10:133
446223992826,1cyclictest0-21swapper/211:24:592
446223992825,2cyclictest0-21swapper/211:40:112
446223992825,2cyclictest0-21swapper/210:40:022
446223992825,2cyclictest0-21swapper/209:28:592
446223992825,2cyclictest0-21swapper/208:21:592
446223992825,2cyclictest0-21swapper/208:15:132
446223992824,2cyclictest0-21swapper/211:51:582
44622399280,27cyclictest0-21swapper/209:20:022
44622399280,27cyclictest0-21swapper/209:20:012
44622399280,26cyclictest0-21swapper/209:50:012
44622399280,25cyclictest0-21swapper/207:25:592
4577091270,5ptp4l441ktimers/307:15:003
446226992725,1cyclictest0-21swapper/311:53:593
44622399270,24cyclictest0-21swapper/210:09:552
4577091260,6ptp4l61490irq/134-eno1-TxRx-008:55:003
4577091260,6ptp4l61490irq/134-eno1-TxRx-007:50:003
4577091260,6ptp4l441ktimers/309:14:543
4577091260,6ptp4l441ktimers/308:00:003
4577091260,6ptp4l441ktimers/307:40:003
4577091260,5ptp4l441ktimers/312:05:003
4577091260,5ptp4l441ktimers/311:04:563
4577091260,5ptp4l441ktimers/309:09:563
4577091260,4ptp4l441ktimers/309:55:003
4577091260,4ptp4l441ktimers/308:05:013
4577091260,4ptp4l441ktimers/307:45:003
446226992624,1cyclictest0-21swapper/311:14:003
44622699260,25cyclictest0-21swapper/310:13:583
446223992623,2cyclictest0-21swapper/212:02:592
44622399260,24cyclictest0-21swapper/208:33:592
4577091250,5ptp4l441ktimers/308:59:563
446226992523,1cyclictest0-21swapper/310:55:003
44622699250,2cyclictest0-21swapper/310:45:123
446223992522,2cyclictest0-21swapper/210:19:582
44622399250,2cyclictest0-21swapper/208:13:002
446223992422,1cyclictest0-21swapper/207:19:592
446223992319,2cyclictest0-21swapper/208:02:592
446223992219,2cyclictest0-21swapper/207:40:592
446223992118,2cyclictest0-21swapper/210:13:592
446223992118,2cyclictest0-21swapper/207:52:592
44621999193,15cyclictest446278-21cat07:10:011
44621999193,15cyclictest446278-21cat07:10:011
231999190,10rtkit-daemon2304-21lightdm-gtk-gre07:06:430
231999190,10rtkit-daemon2304-21lightdm-gtk-gre07:06:420
446223991816,1cyclictest0-21swapper/212:15:132
446223991715,1cyclictest0-21swapper/210:04:582
44622399129,2cyclictest0-21swapper/210:34:582
44622399107,2cyclictest0-21swapper/207:55:142
4462239996,2cyclictest0-21swapper/212:20:142
4462239930,2cyclictest0-21swapper/207:10:022
4462239930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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