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2026-06-30 - 11:24
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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 Tue Jun 30, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8383999146135,7cyclictest112635-21latency_hist20:40:011
8383599132126,4cyclictest95165-21kworker/u8:3+events_unbound20:30:010
8383999128120,5cyclictest170707-21latency_hist23:40:011
8383999122111,8cyclictest1213033-21systemd-journal21:00:011
8383599119112,5cyclictest122212-21kworker/u8:1+flush-179:022:30:170
8383999114103,8cyclictest120593-21latency_hist21:05:021
838359911386,9cyclictest86929-21apt-get19:20:000
8383599111105,4cyclictest163137-21kworker/u8:2+flush-179:023:30:140
838359911099,8cyclictest96715-21latency_hist19:50:010
838359910896,8cyclictest165671-21latency_hist23:25:020
838399910798,7cyclictest103080-21latency_hist20:10:001
838399910697,6cyclictest181892-21latency_hist00:15:011
838399910690,12cyclictest1213033-21systemd-journal00:04:001
838399910394,6cyclictest162475-21latency_hist23:15:001
838399910288,11cyclictest1213033-21systemd-journal21:19:591
838399910191,7cyclictest104665-21latency_hist20:15:011
838399910187,10cyclictest130398-21latency_hist21:35:011
838399910090,7cyclictest91938-21latency_hist19:35:011
83839999991,6cyclictest122177-21latency_hist21:10:011
83839999991,6cyclictest122177-21latency_hist21:10:001
83839999984,11cyclictest1213033-21systemd-journal23:25:001
83839999886,9cyclictest1213033-21systemd-journal00:00:011
83835999890,5cyclictest125326-21kworker/u8:0+events_unbound22:00:260
83835999792,4cyclictest143353-21kworker/u8:0+events_unbound22:45:240
83835999792,4cyclictest125326-21kworker/u8:0+events_unbound21:50:010
83835999791,5cyclictest122212-21kworker/u8:1+flush-179:021:50:230
83835999685,8cyclictest112693-21kworker/u8:2+events_unbound20:50:010
83835999488,4cyclictest143353-21kworker/u8:0+events_unbound22:50:170
83835999485,7cyclictest177100-40mandb00:00:020
83835999485,7cyclictest143373-21kworker/u8:3+flush-179:022:20:010
83835999485,7cyclictest143373-21kworker/u8:3+flush-179:022:20:000
83839999384,6cyclictest82859-21kworker/u8:0+flush-179:019:15:271
83835999382,9cyclictest159339-21kworker/u8:1+events_unbound23:10:010
83835999282,7cyclictest181928-21kworker/u8:3+events_unbound00:30:150
83839999082,5cyclictest159304-21latency_hist23:05:011
83835998982,5cyclictest95165-21kworker/u8:3+flush-179:021:10:160
83835998885,2cyclictest101527-21true20:05:000
83835998774,10cyclictest129346-21diskstats21:30:150
83835998681,3cyclictest82859-21kworker/u8:0+flush-179:019:40:220
83835998680,3cyclictest95165-21kworker/u8:3+flush-179:019:55:200
83835998578,4cyclictest151323-21kworker/u8:2+flush-179:022:40:220
83835998576,6cyclictest173915-21kworker/u8:0+flush-179:000:20:000
83835998479,4cyclictest109485-21kworker/u8:0+flush-179:020:30:190
83835998374,6cyclictest83737-21kworker/u8:1+events_unbound19:30:160
83835998366,13cyclictest1213033-21systemd-journal00:25:000
83839998267,12cyclictest125326-21kworker/u8:0+flush-179:022:05:221
83835998275,5cyclictest95165-21kworker/u8:3+flush-179:020:55:250
83835998273,6cyclictest177027-21kworker/u8:1+flush-179:000:10:270
83835998171,7cyclictest143353-21kworker/u8:0+flush-179:023:00:150
83839998074,5cyclictest125326-21kworker/u8:0+flush-179:021:30:011
83839998070,7cyclictest173915-21kworker/u8:0+events_unbound00:20:261
83835998074,4cyclictest83737-21kworker/u8:1+flush-179:019:10:230
83835997973,4cyclictest125326-21kworker/u8:0+events_unbound21:25:250
83835997970,5cyclictest165807-21kworker/u8:3+flush-179:023:25:220
83839997867,8cyclictest143353-21kworker/u8:0+flush-179:022:35:251
83835997866,9cyclictest1213033-21systemd-journal20:20:010
83835997866,9cyclictest1213033-21systemd-journal20:20:010
83839997765,9cyclictest510-21rs:main1
83835997771,4cyclictest95165-21kworker/u8:3+flush-179:021:15:230
83835997769,5cyclictest83737-21kworker/u8:1+flush-179:019:25:220
83835997759,6cyclictest143353-21kworker/u8:0+events_unbound23:00:000
83835997749,14cyclictest95165-21kworker/u8:3+events_unbound21:05:200
83835997749,14cyclictest95165-21kworker/u8:3+events_unbound21:05:190
83839997661,9cyclictest125326-21kworker/u8:0+events_unbound21:40:001
83835997673,2cyclictest125326-21kworker/u8:0+events_unbound21:45:000
83835997663,9cyclictest1213033-21systemd-journal19:25:010
83835997467,5cyclictest96970-21apt-get19:50:110
83835997463,9cyclictest178978-21apt-get00:05:170
83839997361,9cyclictest83737-21kworker/u8:1+flush-179:019:25:251
83835997367,4cyclictest163137-21kworker/u8:2+flush-179:023:19:550
83835997266,4cyclictest163137-21kworker/u8:2+flush-179:023:40:130
83835997266,4cyclictest122212-21kworker/u8:1+flush-179:022:20:140
83835997264,5cyclictest95165-21kworker/u8:3+flush-179:021:00:220
83835997160,8cyclictest112693-21kworker/u8:2+flush-179:020:50:210
83835997064,4cyclictest181928-21kworker/u8:3+flush-179:000:35:210
83835997060,8cyclictest112900-21apt-get20:40:110
83835997058,9cyclictest122212-21kworker/u8:1+events_unbound22:10:180
83835997057,10cyclictest91915-21kworker/u8:2+flush-179:019:40:000
83839996965,3cyclictest159339-21kworker/u8:1+flush-179:023:05:141
83839996859,7cyclictest156364-21apt-get22:55:111
83835996760,5cyclictest163137-21kworker/u8:2+flush-179:023:55:010
83835996752,7cyclictest109485-21kworker/u8:0+events_unbound20:35:200
83839996656,8cyclictest125326-21kworker/u8:0+flush-179:021:45:211
83839996654,9cyclictest103072-21kworker/u8:1+flush-179:020:20:261
83839996651,11cyclictest1213033-21systemd-journal00:35:001
83835996657,7cyclictest125326-21kworker/u8:0+flush-179:021:35:040
83839996558,5cyclictest122212-21kworker/u8:1+flush-179:021:50:161
83841996436,2cyclictest0-21swapper/219:28:592
83839996454,7cyclictest83963-21/usr/sbin/munin19:10:241
83835996459,4cyclictest143353-21kworker/u8:0+flush-179:022:39:550
83839996355,5cyclictest95165-21kworker/u8:3+flush-179:019:55:131
83839996351,9cyclictest183506-21latency_hist00:20:011
83844996256,4cyclictest148175-21turbostat22:30:003
83835996255,5cyclictest103072-21kworker/u8:1+flush-179:020:20:180
83839996155,5cyclictest98963-21kworker/u8:0+flush-179:020:05:001
83839996155,4cyclictest122212-21kworker/u8:1+flush-179:022:15:161
83839996155,4cyclictest122212-21kworker/u8:1+flush-179:022:15:151
83839996149,9cyclictest1213033-21systemd-journal19:45:001
83835996151,8cyclictest98963-21kworker/u8:0+flush-179:020:05:210
83839996050,8cyclictest122212-21kworker/u8:1+flush-179:021:55:231
83839996049,8cyclictest95165-21kworker/u8:3+flush-179:019:50:201
83835996055,3cyclictest163137-21kworker/u8:2+flush-179:023:45:210
83835996051,6cyclictest163137-21kworker/u8:2+flush-179:023:35:200
83839995950,7cyclictest1213033-21systemd-journal20:32:241
83835995952,5cyclictest173915-21kworker/u8:0+flush-179:000:00:060
83839995828,20cyclictest172295-21latency_hist23:45:011
83835995849,6cyclictest143353-21kworker/u8:0+events_unbound22:25:250
83835995847,7cyclictest159339-21kworker/u8:1+events_unbound23:10:210
83841995754,2cyclictest0-21swapper/219:23:002
83839995746,9cyclictest185342-21apt-get00:25:111
83839995745,9cyclictest106321-21kworker/u8:2+flush-179:020:25:181
83839995647,7cyclictest95165-21kworker/u8:3+events_unbound20:15:141
83839995647,7cyclictest95165-21kworker/u8:3+events_unbound20:15:131
83839995646,7cyclictest143353-21kworker/u8:0+flush-179:023:15:231
83835995645,8cyclictest125326-21kworker/u8:0+flush-179:021:20:210
83839995548,5cyclictest122212-21kworker/u8:1+flush-179:022:05:011
83839995447,5cyclictest173915-21kworker/u8:0+flush-179:000:05:261
83835995451,2cyclictest137055-21kworker/u8:2+flush-179:022:07:410
83839995347,4cyclictest167516-21latency_hist23:30:011
83839995346,5cyclictest83737-21kworker/u8:1+flush-179:019:35:171
83839995336,10cyclictest143353-21kworker/u8:0+flush-179:022:25:221
8383999530,2cyclictest714-21Xorg22:24:591
83835995347,4cyclictest173915-21kworker/u8:0+flush-179:000:25:140
83835995346,5cyclictest95165-21kworker/u8:3+events_unbound20:10:230
4577091530,9ptp4l61490irq/134-eno1-TxRx-019:05:083
83844995149,1cyclictest0-21swapper/319:55:003
83844995149,1cyclictest0-21swapper/319:42:593
83839995036,8cyclictest163137-21kworker/u8:2+flush-179:023:50:231
83835995044,4cyclictest125326-21kworker/u8:0+flush-179:021:57:400
8383999480,45cyclictest0-21swapper/120:50:581
83839994642,2cyclictest151323-21kworker/u8:2+flush-179:022:40:221
83839994535,8cyclictest163137-21kworker/u8:2+flush-179:023:50:001
8383999450,2cyclictest714-21Xorg00:37:591
83839994440,3cyclictest127019-21systemd-run21:25:001
83839994429,14cyclictest149749-21munin-run22:35:001
8383999440,3cyclictest1213033-21systemd-journal22:15:001
83839994336,5cyclictest151323-21kworker/u8:2+flush-179:022:49:561
83841994239,2cyclictest0-21swapper/220:35:592
83841994239,2cyclictest0-21swapper/200:25:592
83841994139,1cyclictest0-21swapper/222:04:582
8384199410,33cyclictest0-21swapper/221:46:582
83839994132,7cyclictest163137-21kworker/u8:2+flush-179:023:30:211
83844994037,2cyclictest0-21swapper/322:47:593
83844994034,5cyclictest135439-21turbostat21:50:013
83841994038,1cyclictest0-21swapper/223:59:592
83841994036,2cyclictest0-21swapper/220:21:592
8384199402,35cyclictest0-21swapper/219:34:592
8384199390,1cyclictest0-21swapper/219:40:002
83839993930,6cyclictest95165-21kworker/u8:3+flush-179:020:45:111
83839993918,18cyclictest0-21swapper/119:45:591
8384499380,37cyclictest0-21swapper/321:28:593
8384199380,36cyclictest0-21swapper/220:29:592
83839993832,5cyclictest151323-21kworker/u8:2+flush-179:022:51:411
83844993731,5cyclictest159325-21turbostat23:05:003
83844993730,6cyclictest96725-21turbostat19:50:013
83844993730,6cyclictest140211-21turbostat22:04:593
8384499370,1cyclictest0-21swapper/319:24:003
83841993734,2cyclictest0-21swapper/223:23:592
83841993734,2cyclictest0-21swapper/200:31:592
83841993733,2cyclictest0-21swapper/221:58:002
83841993733,2cyclictest0-21swapper/220:34:582
8384199370,35cyclictest0-21swapper/221:26:592
8384199370,35cyclictest0-21swapper/219:50:592
83844993634,1cyclictest0-21swapper/323:07:593
83844993634,1cyclictest0-21swapper/300:06:593
83844993632,3cyclictest178735-21turbostat00:05:003
83844993631,4cyclictest169108-21turbostat23:35:003
83844993631,4cyclictest137022-21turbostat21:55:013
8384499360,35cyclictest0-21swapper/323:35:593
8384499360,1cyclictest0-21swapper/323:47:593
83841993633,2cyclictest0-21swapper/222:38:002
8384199360,34cyclictest0-21swapper/223:35:592
83844993533,1cyclictest0-21swapper/323:42:593
83844993533,1cyclictest0-21swapper/322:34:593
83844993533,1cyclictest0-21swapper/319:29:553
8384499350,1cyclictest0-21swapper/322:08:003
8384499350,1cyclictest0-21swapper/320:14:543
83841993532,2cyclictest0-21swapper/223:11:592
83841993532,2cyclictest0-21swapper/219:18:592
83841993532,2cyclictest0-21swapper/219:10:592
83839993527,5cyclictest321-21hwrng21:42:001
83844993432,1cyclictest0-21swapper/323:29:553
83844993432,1cyclictest0-21swapper/321:07:003
83844993432,1cyclictest0-21swapper/321:06:593
83844993431,2cyclictest0-21swapper/320:00:593
83841993432,1cyclictest0-21swapper/223:19:592
83841993431,2cyclictest0-21swapper/221:41:592
83841993431,2cyclictest0-21swapper/221:12:592
4577091340,6ptp4l441ktimers/322:55:003
83844993331,1cyclictest0-21swapper/323:16:593
83844993331,1cyclictest0-21swapper/322:13:593
83844993331,1cyclictest0-21swapper/320:08:003
83844993331,1cyclictest0-21swapper/300:16:593
83844993327,5cyclictest112636-21turbostat20:40:013
83841993330,2cyclictest0-21swapper/219:42:592
83841993329,2cyclictest0-21swapper/222:53:592
8384199330,30cyclictest0-21swapper/220:09:552
83844993230,1cyclictest0-21swapper/300:30:593
83841993229,2cyclictest0-21swapper/223:01:592
83841993229,2cyclictest0-21swapper/222:58:592
83841993229,2cyclictest0-21swapper/222:43:592
83841993229,2cyclictest0-21swapper/200:20:592
83841993128,2cyclictest0-21swapper/220:56:002
8384199310,29cyclictest0-21swapper/222:20:122
83839993123,6cyclictest95165-21kworker/u8:3+events_unbound21:10:221
83844993028,1cyclictest0-21swapper/319:38:003
83844993027,2cyclictest0-21swapper/320:55:133
83844993024,5cyclictest91946-21turbostat19:35:003
83844993024,5cyclictest109455-21turbostat20:30:003
8384499300,29cyclictest0-21swapper/319:59:553
83841993027,2cyclictest0-21swapper/223:25:142
8384199300,2cyclictest0-21swapper/221:20:592
8383999301,3cyclictest112952-21cpuspeed20:40:141
83844992927,1cyclictest0-21swapper/321:32:593
83844992924,4cyclictest185101-21turbostat00:25:003
8384499290,28cyclictest0-21swapper/323:50:133
8384499290,28cyclictest0-21swapper/319:10:143
8384499290,1cyclictest0-21swapper/300:00:023
83841992927,1cyclictest0-21swapper/222:30:002
83841992926,2cyclictest0-21swapper/222:46:582
83841992926,2cyclictest0-21swapper/221:30:122
83841992926,2cyclictest0-21swapper/221:15:132
8384199290,28cyclictest0-21swapper/219:55:132
8384199290,27cyclictest0-21swapper/223:40:122
8384199290,27cyclictest0-21swapper/223:05:132
8384199290,27cyclictest0-21swapper/221:35:022
8384199290,27cyclictest0-21swapper/220:00:132
83844992826,1cyclictest0-21swapper/322:40:133
83844992826,1cyclictest0-21swapper/321:20:123
83844992825,2cyclictest0-21swapper/322:20:113
83844992825,2cyclictest0-21swapper/321:35:013
83844992822,4cyclictest112636-21turbostat20:44:553
8384499280,27cyclictest0-21swapper/322:35:133
8384499280,27cyclictest0-21swapper/321:58:593
8384499280,26cyclictest0-21swapper/323:20:143
8384499280,26cyclictest0-21swapper/321:10:133
8384499280,26cyclictest0-21swapper/321:00:143
8384499280,26cyclictest0-21swapper/320:45:123
8384499280,26cyclictest0-21swapper/300:25:133
83841992825,2cyclictest0-21swapper/219:45:112
83841992825,2cyclictest0-21swapper/200:05:592
8384199280,27cyclictest0-21swapper/200:00:022
4577091280,6ptp4l441ktimers/320:55:013
83844992725,1cyclictest0-21swapper/322:59:553
83844992725,1cyclictest0-21swapper/321:15:143
8384499270,26cyclictest0-21swapper/300:35:593
83841992724,2cyclictest0-21swapper/222:11:002
8384199270,2cyclictest0-21swapper/223:51:592
8384199270,25cyclictest0-21swapper/220:54:002
8384199270,24cyclictest0-21swapper/200:14:592
8384199270,1cyclictest0-21swapper/200:15:112
4577091270,7ptp4l441ktimers/322:20:013
4577091270,7ptp4l441ktimers/322:20:003
83844992624,1cyclictest0-21swapper/320:22:593
83844992624,1cyclictest0-21swapper/319:16:593
8384199260,24cyclictest0-21swapper/223:45:592
8384199260,24cyclictest0-21swapper/221:55:002
8383999260,7cyclictest83951-21sed19:10:021
4577091260,6ptp4l441ktimers/323:15:003
231999260,15rtkit-daemon908065-21snmpd19:05:470
83841992522,2cyclictest0-21swapper/221:09:002
83841992522,2cyclictest0-21swapper/221:09:002
83841992522,2cyclictest0-21swapper/220:15:592
83841992522,2cyclictest0-21swapper/220:15:582
8384199250,2cyclictest0-21swapper/223:30:112
4577091250,6ptp4l61490irq/134-eno1-TxRx-020:35:013
4577091250,5ptp4l441ktimers/320:19:563
4577091250,5ptp4l441ktimers/320:19:563
83841992421,2cyclictest0-21swapper/222:06:592
4577091240,5ptp4l61490irq/134-eno1-TxRx-021:45:003
83841992321,1cyclictest0-21swapper/220:44:592
83841992320,2cyclictest0-21swapper/221:00:582
4577091230,4ptp4l61490irq/134-eno1-TxRx-000:14:553
83841992118,2cyclictest0-21swapper/220:45:582
83841991613,2cyclictest0-21swapper/222:15:122
83841991613,2cyclictest0-21swapper/222:15:122
838419985,2cyclictest0-21swapper/222:30:472
838419985,2cyclictest0-21swapper/220:11:022
838419963,2cyclictest0-21swapper/200:35:432
838419930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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