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2026-05-03 - 10:33
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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 376 highest latencies:
System rackeslot6.osadl.org (updated Sun May 03, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66970199148137,8cyclictest1213033-21systemd-journal00:04:011
66970199112104,5cyclictest680742-21latency_hist19:45:011
6697019910390,10cyclictest695324-21latency_hist20:30:001
6696999910297,4cyclictest752906-21kworker/u8:1+flush-179:000:04:000
6696999910293,7cyclictest733247-21latency_hist22:25:010
669701999585,8cyclictest756047-21latency_hist23:35:011
669701999585,7cyclictest764064-21kworker/u8:0+flush-179:000:15:021
669701999487,5cyclictest671164-21kworker/u8:1+flush-179:019:30:011
669701999387,4cyclictest764084-21kworker/u8:3+flush-179:000:20:171
669699999383,7cyclictest770728-21latency_hist00:20:010
669701999284,5cyclictest4192177-21kworker/u8:2+events_unbound20:20:011
669699999276,13cyclictest695339-21apt-get20:30:010
669701998981,6cyclictest731666-21kworker/u8:2+flush-179:022:20:001
669699998982,5cyclictest764084-21kworker/u8:3+flush-179:000:39:590
66969999870,85cyclictest1-21systemd21:30:010
66969999861,82cyclictest1-21systemd21:10:000
669701998475,6cyclictest677523-21kworker/u8:0+flush-179:019:35:251
669701998276,4cyclictest4192177-21kworker/u8:2+flush-179:020:50:001
669699998267,12cyclictest1213033-21systemd-journal00:10:010
669701998174,5cyclictest4192177-21kworker/u8:2+flush-179:019:25:011
669699998173,5cyclictest734833-21latency_hist22:30:010
669701998068,8cyclictest708850-21kworker/u8:2+flush-179:021:15:011
669701998068,8cyclictest708850-21kworker/u8:2+flush-179:021:15:011
669699997967,8cyclictest764064-21kworker/u8:0+flush-179:000:00:010
669701997668,5cyclictest773885-21kworker/u8:0+events_unbound00:30:231
669701997564,8cyclictest723455-21kworker/u8:2+flush-179:022:05:031
669701997564,8cyclictest723455-21kworker/u8:2+flush-179:022:05:021
669701997468,4cyclictest736411-21kworker/u8:4+flush-179:022:40:151
669701997367,4cyclictest718698-21kworker/u8:3+events_unbound21:55:251
669701997365,5cyclictest759276-21kworker/u8:3+flush-179:023:55:001
669699997365,6cyclictest687369-21latency_hist20:05:010
669701997164,5cyclictest723335-21kworker/u8:1+flush-179:022:00:211
669699997167,3cyclictest752858-21kworker/u8:0+events_unbound23:29:550
669701996963,4cyclictest715446-21kworker/u8:0+flush-179:021:35:001
669699996960,6cyclictest705405-21latency_hist21:00:020
669699996960,6cyclictest705405-21latency_hist21:00:020
66970599680,65cyclictest0-21swapper/223:00:002
669701996862,4cyclictest741237-21kworker/u8:0+flush-179:023:05:011
669701996860,6cyclictest757649-21latency_hist23:40:011
669701996860,6cyclictest751267-21latency_hist23:20:011
669701996761,4cyclictest668047-21kworker/u8:3+flush-179:019:10:231
669701996760,5cyclictest702256-21kworker/u8:0+flush-179:021:15:011
669701996758,7cyclictest702256-21kworker/u8:0+flush-179:020:55:011
669699996762,3cyclictest741237-21kworker/u8:0+flush-179:022:55:260
669701996560,4cyclictest718698-21kworker/u8:3+flush-179:021:49:041
669699996557,5cyclictest723420-21latency_hist21:55:000
669701996459,4cyclictest4192177-21kworker/u8:2+flush-179:020:09:551
669701996456,5cyclictest752858-21kworker/u8:0+events_unbound23:25:231
669701996456,5cyclictest739596-21kworker/u8:2+flush-179:022:50:001
66970199640,3cyclictest714-21Xorg20:03:591
669699996458,4cyclictest767522-21apt-get00:10:120
669701996356,5cyclictest705440-21kworker/u8:3+flush-179:021:00:171
669701996254,6cyclictest677547-21latency_hist19:35:011
669701996253,7cyclictest731628-21kworker/u8:0+flush-179:022:30:011
669699996252,8cyclictest682584-21apt-get19:50:110
669701996156,4cyclictest693781-21kworker/u8:3+flush-179:020:39:561
669701996152,6cyclictest700376-21apt-get20:44:591
669701996149,10cyclictest739596-21kworker/u8:2+flush-179:022:50:151
669699996157,3cyclictest4192177-21kworker/u8:2+events_unbound20:37:220
669701996055,4cyclictest4192177-21kworker/u8:2+flush-179:020:55:161
669701996055,4cyclictest4192177-21kworker/u8:2+flush-179:020:55:151
669701996050,8cyclictest759498-21apt-get23:45:111
669701996049,9cyclictest1213033-21systemd-journal21:30:001
669699996051,6cyclictest682336-21latency_hist19:50:010
669707995955,2cyclictest0-21swapper/322:59:593
669701995954,4cyclictest741237-21kworker/u8:0+flush-179:022:59:551
669699995950,6cyclictest742788-21latency_hist22:55:010
669701995845,10cyclictest764043-40mandb00:00:011
669699995850,6cyclictest745965-21kworker/u8:2+flush-179:023:10:010
669699995849,7cyclictest671176-21latency_hist19:15:010
669701995752,3cyclictest744355-21kworker/u8:1+flush-179:023:10:241
669699995749,6cyclictest697173-21latency_hist20:35:010
669701995651,4cyclictest747863-21kworker/u8:3+flush-179:023:20:151
669701995650,4cyclictest770737-21kworker/u8:2+flush-179:000:25:171
669701995650,4cyclictest752906-21kworker/u8:1+flush-179:023:40:141
669701995649,5cyclictest4192177-21kworker/u8:2+flush-179:019:15:131
669701995649,5cyclictest1213033-21systemd-journal22:32:031
669699995648,6cyclictest721833-21latency_hist21:50:010
669699995648,6cyclictest672779-21latency_hist19:20:010
669701995451,2cyclictest714-21Xorg20:32:591
669701995446,6cyclictest682322-21kworker/u8:0+flush-179:019:55:201
669699995448,4cyclictest714-21Xorg23:49:000
669701995348,4cyclictest752906-21kworker/u8:1+flush-179:000:10:221
669701995348,4cyclictest731628-21kworker/u8:0+flush-179:022:36:041
669701995347,5cyclictest680734-21kworker/u8:1+flush-179:019:45:181
669707995250,1cyclictest0-21swapper/300:26:593
669701995247,4cyclictest752906-21kworker/u8:1+flush-179:000:05:221
669701995142,6cyclictest712247-21kworker/u8:1+events_unbound21:20:141
669699995142,7cyclictest1213033-21systemd-journal00:24:050
669701995044,4cyclictest723455-21kworker/u8:2+flush-179:022:10:161
669699995049,1cyclictest0-21swapper/023:36:590
669699995047,2cyclictest714-21Xorg20:09:000
669699995046,4cyclictest736409-21kworker/u8:1+events_unbound22:45:070
669699995037,5cyclictest757910-21apt-get23:40:100
669701994944,4cyclictest723335-21kworker/u8:1+flush-179:021:51:041
669701994941,5cyclictest741237-21kworker/u8:0+flush-179:023:05:201
669701994841,5cyclictest731666-21kworker/u8:2+events_unbound22:20:241
669699994845,3cyclictest731628-21kworker/u8:0+events_unbound22:32:510
4577091480,13ptp4l441ktimers/319:09:563
669699994743,3cyclictest4192177-21kworker/u8:2+events_unbound19:30:030
669701994637,7cyclictest690539-21latency_hist20:15:011
669701994637,6cyclictest773885-21kworker/u8:0+flush-179:000:35:211
669699994636,7cyclictest713880-21latency_hist21:25:000
669701994541,3cyclictest4192177-21kworker/u8:2+flush-179:019:50:211
669699994539,4cyclictest677523-21kworker/u8:0+flush-179:019:40:000
669699994536,7cyclictest4192177-21kworker/u8:2+flush-179:020:15:200
669701994438,4cyclictest717044-21kworker/u8:1+flush-179:021:45:011
669699994440,3cyclictest744355-21kworker/u8:1+events_unbound23:00:010
669701994339,3cyclictest698816-21kworker/u8:1+flush-179:021:08:051
669699994335,7cyclictest710939-21apt-get21:15:130
669699994335,7cyclictest710939-21apt-get21:15:120
66969999432,39cyclictest728470-21turbostat22:14:540
669699994236,5cyclictest755470-21kworker/u8:3+flush-179:023:30:230
669699994235,5cyclictest739616-21latency_hist22:45:010
66970599410,39cyclictest0-21swapper/220:55:582
66970599410,39cyclictest0-21swapper/220:55:582
66969999411,38cyclictest752876-21munin-run23:25:000
66969999411,38cyclictest675974-21dump-pmu-power19:30:010
66970799400,38cyclictest702229-21turbostat20:54:553
669701994035,4cyclictest690584-21kworker/u8:1+events_unbound20:20:231
669701994034,4cyclictest715446-21kworker/u8:0+events_unbound21:35:251
669699994037,2cyclictest726626-21dump-pmu-power22:05:010
669699994036,2cyclictest693739-21munin-run20:25:000
669699994032,6cyclictest717055-21latency_hist21:35:010
66969999401,37cyclictest714-21Xorg21:39:580
66969999400,38cyclictest714-21Xorg20:44:590
66969999400,38cyclictest714-21Xorg00:33:590
66970799390,38cyclictest757639-21turbostat23:40:003
66970599390,36cyclictest0-21swapper/223:34:552
669699993936,3cyclictest4192177-21kworker/u8:2+events_unbound19:23:590
669699993935,3cyclictest714-21Xorg23:13:590
669699993933,4cyclictest773908-21apt00:30:000
669707993835,2cyclictest0-21swapper/321:15:003
669705993835,2cyclictest0-21swapper/200:23:592
669705993834,2cyclictest0-21swapper/223:11:592
66970599380,36cyclictest0-21swapper/221:08:592
66970599380,35cyclictest0-21swapper/220:04:542
66970599380,2cyclictest0-21swapper/200:39:562
669699993834,3cyclictest702256-21kworker/u8:0+events_unbound21:10:070
669699993832,4cyclictest702297-21latency_hist20:50:010
66969999380,2cyclictest714-21Xorg21:57:590
669707993734,2cyclictest0-21swapper/323:50:593
66970799370,36cyclictest0-21swapper/322:04:563
669705993734,2cyclictest0-21swapper/221:32:002
669705993733,2cyclictest0-21swapper/219:46:582
669705993733,2cyclictest0-21swapper/219:31:592
66970599370,35cyclictest0-21swapper/220:29:592
66970599370,35cyclictest0-21swapper/219:25:592
669701993733,3cyclictest668046-21kworker/u8:0+events_unbound19:10:011
669699993733,3cyclictest677527-21kworker/u8:3+events_unbound19:40:480
669707993634,1cyclictest0-21swapper/323:59:553
669707993634,1cyclictest0-21swapper/320:44:553
669707993633,2cyclictest0-21swapper/323:13:593
669707993633,2cyclictest0-21swapper/320:59:593
669707993633,2cyclictest0-21swapper/320:59:593
66970799360,35cyclictest0-21swapper/323:19:593
66970799360,35cyclictest0-21swapper/323:06:593
66970799360,35cyclictest0-21swapper/322:51:593
66970799360,35cyclictest0-21swapper/322:49:593
66970799360,35cyclictest0-21swapper/300:38:583
66970799360,1cyclictest0-21swapper/322:29:593
669705993633,2cyclictest0-21swapper/222:39:552
669705993633,2cyclictest0-21swapper/221:04:562
669705993633,2cyclictest0-21swapper/219:52:002
66970599360,1cyclictest0-21swapper/221:25:582
66970599360,1cyclictest0-21swapper/200:25:592
669699993633,2cyclictest714-21Xorg19:55:580
669699993633,2cyclictest706996-21munin-run21:04:590
669699993633,2cyclictest0-21swapper/020:54:580
669707993532,2cyclictest0-21swapper/319:27:593
66970799350,1cyclictest0-21swapper/321:05:593
66970799350,1cyclictest0-21swapper/320:39:583
669705993532,2cyclictest0-21swapper/222:27:592
669705993532,2cyclictest0-21swapper/220:08:002
669705993531,2cyclictest0-21swapper/200:08:582
66970599350,1cyclictest0-21swapper/220:23:592
669707993432,1cyclictest0-21swapper/321:44:003
669707993432,1cyclictest0-21swapper/320:03:593
669705993432,1cyclictest0-21swapper/222:25:002
669705993430,2cyclictest0-21swapper/222:33:592
669699993429,4cyclictest761084-21apt-get23:50:120
66969999342,4cyclictest718920-21apt-get21:40:130
669707993331,1cyclictest0-21swapper/320:10:593
669707993330,2cyclictest0-21swapper/322:42:593
669707993328,4cyclictest770721-21turbostat00:20:003
669705993330,2cyclictest0-21swapper/223:19:552
669699993328,4cyclictest690556-21perf20:15:010
66969999330,30cyclictest908065-21snmpd22:05:130
66969999330,30cyclictest908065-21snmpd22:05:130
4577091330,12ptp4l61490irq/134-eno1-TxRx-022:15:003
669707993230,1cyclictest0-21swapper/323:44:553
669707993230,1cyclictest0-21swapper/320:28:593
669707993229,2cyclictest0-21swapper/322:21:583
669707993229,2cyclictest0-21swapper/319:24:593
669705993230,1cyclictest0-21swapper/221:55:012
4577091320,11ptp4l441ktimers/320:35:003
669707993129,1cyclictest0-21swapper/322:17:003
669707993129,1cyclictest0-21swapper/320:17:583
669707993128,2cyclictest0-21swapper/320:47:003
669707993126,4cyclictest707000-21turbostat21:04:593
669705993128,2cyclictest0-21swapper/220:30:142
669699993127,2cyclictest749898-21gpg-connect-age23:15:010
669707993029,1cyclictest0-21swapper/321:19:563
669707993029,1cyclictest0-21swapper/321:19:553
669707993028,1cyclictest0-21swapper/323:26:593
669707993028,1cyclictest0-21swapper/319:13:593
669705993027,2cyclictest0-21swapper/220:43:582
669705993027,2cyclictest0-21swapper/220:38:592
669705993027,2cyclictest0-21swapper/219:20:592
66970599300,2cyclictest0-21swapper/223:05:012
66970599300,28cyclictest0-21swapper/223:55:132
66970599300,28cyclictest0-21swapper/223:45:122
669699993026,2cyclictest714-21Xorg22:36:580
669707992926,2cyclictest0-21swapper/321:25:593
669707992926,2cyclictest0-21swapper/320:24:003
669707992926,2cyclictest0-21swapper/300:20:593
66970799290,28cyclictest0-21swapper/321:30:123
66970799290,28cyclictest0-21swapper/300:10:133
66970799290,1cyclictest0-21swapper/322:35:123
669705992926,2cyclictest0-21swapper/221:45:592
669705992925,2cyclictest0-21swapper/223:41:592
669705992925,2cyclictest0-21swapper/221:55:122
66970599290,27cyclictest0-21swapper/222:40:122
66970599290,27cyclictest0-21swapper/219:35:132
66970599290,27cyclictest0-21swapper/219:10:132
66970599290,27cyclictest0-21swapper/200:30:132
66970599290,27cyclictest0-21swapper/200:10:132
4577091290,7ptp4l441ktimers/321:55:003
669707992826,1cyclictest0-21swapper/323:45:123
669707992826,1cyclictest0-21swapper/323:34:553
669707992825,2cyclictest0-21swapper/322:30:143
669707992825,2cyclictest0-21swapper/322:05:033
669707992825,2cyclictest0-21swapper/322:05:033
669707992825,2cyclictest0-21swapper/321:55:123
669707992825,2cyclictest0-21swapper/300:30:133
66970799280,2cyclictest0-21swapper/319:50:133
66970799280,27cyclictest0-21swapper/323:05:013
66970799280,26cyclictest0-21swapper/320:05:133
66970799280,26cyclictest0-21swapper/319:35:133
669705992825,2cyclictest0-21swapper/223:05:012
669705992825,2cyclictest0-21swapper/222:00:592
66970599280,26cyclictest0-21swapper/222:05:042
66970599280,26cyclictest0-21swapper/222:05:032
66970599280,26cyclictest0-21swapper/221:21:592
66970599280,26cyclictest0-21swapper/221:15:032
66970599280,26cyclictest0-21swapper/221:15:032
669699992824,3cyclictest730744-21hwlatdetect22:15:180
66970799270,2cyclictest0-21swapper/319:46:593
66970599270,24cyclictest0-21swapper/220:48:002
66970599270,1cyclictest0-21swapper/222:15:142
4577091270,6ptp4l61490irq/134-eno1-TxRx-019:59:563
4577091270,6ptp4l441ktimers/323:24:563
4577091270,6ptp4l441ktimers/319:45:003
4577091270,6ptp4l441ktimers/319:35:003
4577091270,5ptp4l441ktimers/321:49:563
669707992624,1cyclictest0-21swapper/321:35:593
66970799260,2cyclictest765693-21turbostat00:05:003
66970799260,1cyclictest0-21swapper/300:05:143
669705992624,1cyclictest0-21swapper/219:59:592
669705992623,2cyclictest0-21swapper/219:42:592
669705992623,2cyclictest0-21swapper/200:19:552
66970599260,2cyclictest0-21swapper/222:53:592
66970599260,24cyclictest0-21swapper/223:35:132
4577091260,5ptp4l441ktimers/321:24:553
66970599250,1cyclictest0-21swapper/223:29:592
4577091250,5ptp4l441ktimers/319:19:553
231999250,14rtkit-daemon908065-21snmpd19:05:110
669705992421,2cyclictest0-21swapper/220:53:002
669705992421,2cyclictest0-21swapper/220:15:592
669705992421,2cyclictest0-21swapper/220:10:592
669705992320,2cyclictest0-21swapper/222:45:592
669705992320,2cyclictest0-21swapper/222:10:592
669705992118,2cyclictest0-21swapper/200:01:592
669705992117,2cyclictest0-21swapper/221:38:002
669705992017,2cyclictest0-21swapper/221:40:122
669705992017,2cyclictest0-21swapper/219:18:592
669705991816,1cyclictest0-21swapper/221:14:592
669705991815,2cyclictest0-21swapper/223:52:592
6697059974,2cyclictest0-21swapper/223:22:052
6697059930,2cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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