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2026-05-02 - 20:42
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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 Sat May 02, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3468802999690,5cyclictest3512393-21kworker/u8:3+events_unbound09:55:031
3468802999283,7cyclictest3555831-21kworker/u8:1+events_unbound12:00:021
3468801998982,4cyclictest3556021-21kworker/u8:3+events_unbound12:30:010
3468802998879,6cyclictest3547885-21latency_hist11:15:011
3468801998777,7cyclictest3515523-21latency_hist09:35:010
3468802998681,4cyclictest3541562-21kworker/u8:2+events_unbound11:00:241
3468802998681,4cyclictest3522385-21kworker/u8:0+flush-179:010:00:231
3468802998681,4cyclictest3507292-21kworker/u8:1+flush-179:009:25:251
3468802998580,4cyclictest3555831-21kworker/u8:1+flush-179:011:49:551
3468802998575,8cyclictest3554257-21latency_hist11:35:011
3468802998575,8cyclictest1213033-21systemd-journal08:20:001
3468801998579,4cyclictest3522385-21kworker/u8:0+events_unbound09:55:250
3468801998476,6cyclictest3507322-21apt-get09:10:040
3468801998476,5cyclictest3528767-21kworker/u8:3+flush-179:010:15:010
3468802998378,4cyclictest3541562-21kworker/u8:2+flush-179:011:24:551
3468802998378,4cyclictest3528767-21kworker/u8:3+events_unbound10:20:241
3468802998278,3cyclictest3565965-21kworker/u8:2+events_unbound12:25:251
3468802998278,3cyclictest3541562-21kworker/u8:2+flush-179:011:19:561
3468801998273,7cyclictest3562984-21/usr/sbin/munin12:00:230
3468802998177,3cyclictest3472004-21kworker/u8:3+events_unbound07:55:241
3468802998175,4cyclictest3556021-21kworker/u8:3+events_unbound12:10:231
3468801998173,5cyclictest3472004-21kworker/u8:3+events_unbound08:15:140
3468801998069,9cyclictest3562479-21apt-get12:00:000
3468802997872,4cyclictest3522385-21kworker/u8:0+events_unbound10:05:131
3468802997772,4cyclictest3541562-21kworker/u8:2+flush-179:011:35:241
3468801997769,6cyclictest3541516-21latency_hist10:55:000
3468802997671,4cyclictest3472004-21kworker/u8:3+flush-179:007:54:551
3468802997668,6cyclictest3472004-21kworker/u8:3+events_unbound08:40:171
3468802997570,4cyclictest3500922-21kworker/u8:3+events_unbound08:55:221
3468802997567,5cyclictest3476704-21kworker/u8:0+flush-179:007:35:221
3468802997566,6cyclictest3552669-21latency_hist11:30:011
3468801997568,5cyclictest3531976-21latency_hist10:25:010
3468801997568,5cyclictest3522385-21kworker/u8:0+flush-179:010:05:250
3468802997369,3cyclictest3472004-21kworker/u8:3+events_unbound08:20:131
3468802997368,4cyclictest3533800-21kworker/u8:1+events_unbound10:40:221
3468802997267,4cyclictest3505702-21kworker/u8:0+events_unbound09:40:241
3468802997263,6cyclictest3472004-21kworker/u8:3+events_unbound07:40:191
3468801997265,5cyclictest3515508-21kworker/u8:2+flush-179:009:45:220
3468802997164,4cyclictest3495095-21kworker/u8:1+events_unbound08:45:181
3468802997064,4cyclictest3559532-21kworker/u8:0+events_unbound11:55:141
3468802996964,4cyclictest3559532-21kworker/u8:0+flush-179:011:50:261
3468802996964,4cyclictest3518701-21kworker/u8:1+events_unbound09:50:181
3468802996964,4cyclictest3507292-21kworker/u8:1+flush-179:009:10:271
3468802996964,4cyclictest3472004-21kworker/u8:3+flush-179:008:05:291
3468802996964,3cyclictest3468772-21kworker/u8:0+events_unbound07:15:261
3468802996964,3cyclictest3468772-21kworker/u8:0+events_unbound07:15:251
3468802996963,5cyclictest3500922-21kworker/u8:3+flush-179:009:05:271
3468802996958,8cyclictest3538600-21apt-get10:45:121
3468802996955,11cyclictest1213033-21systemd-journal12:40:001
3468801996962,4cyclictest3471914-21kworker/u8:2+flush-179:007:20:170
3468801996959,7cyclictest3541562-21kworker/u8:2+flush-179:011:00:220
3468802996864,3cyclictest3472004-21kworker/u8:3+events_unbound08:00:241
3468802996763,3cyclictest3474425-21kworker/u8:1+events_unbound07:45:191
3468801996758,7cyclictest3472004-21kworker/u8:3+flush-179:008:40:010
3468802996661,4cyclictest3472004-21kworker/u8:3+events_unbound08:25:161
3468802996661,3cyclictest3556021-21kworker/u8:3+events_unbound12:15:141
3468802996658,3cyclictest3471914-21kworker/u8:2+events_unbound07:20:211
3468802996655,8cyclictest1213033-21systemd-journal10:33:531
3468802996655,4cyclictest3507292-21kworker/u8:1+events_unbound09:15:211
3468802996655,4cyclictest3505702-21kworker/u8:0+events_unbound09:30:231
3468801996660,5cyclictest3541562-21kworker/u8:2+flush-179:011:09:550
3468801996660,4cyclictest3515508-21kworker/u8:2+flush-179:009:44:550
3468802996553,5cyclictest3474425-21kworker/u8:1+events_unbound07:25:221
3468801996558,5cyclictest3472004-21kworker/u8:3+flush-179:008:30:220
3468802996459,4cyclictest3528767-21kworker/u8:3+flush-179:010:35:261
3468801996457,5cyclictest3501142-21apt-get08:50:120
3468801996455,6cyclictest3565965-21kworker/u8:2+flush-179:012:15:210
3468802996359,3cyclictest3472004-21kworker/u8:3+flush-179:008:30:261
3468802996357,4cyclictest3468772-21kworker/u8:0+events_unbound07:10:201
3468801996355,4cyclictest3556021-21kworker/u8:3+flush-179:012:30:200
3468802996256,4cyclictest3518973-21apt-get09:45:121
3468802996253,7cyclictest3572547-21apt-get12:30:111
3468802996157,3cyclictest3541562-21kworker/u8:2+events_unbound11:44:551
3468802996157,3cyclictest3522385-21kworker/u8:0+events_unbound10:25:211
3468802996056,3cyclictest3518701-21kworker/u8:1+flush-179:010:14:551
3468801996054,4cyclictest3500922-21kworker/u8:3+flush-179:009:00:250
3468801996053,4cyclictest3472004-21kworker/u8:3+events_unbound07:40:150
3468801996052,6cyclictest3543116-21latency_hist11:00:010
3468801996052,5cyclictest3472004-21kworker/u8:3+flush-179:007:40:000
3468802995955,3cyclictest3507292-21kworker/u8:1+events_unbound09:20:251
3468801995955,3cyclictest3512393-21kworker/u8:3+events_unbound09:35:230
3468801995952,5cyclictest3479977-21kworker/u8:0+events_unbound08:15:010
3468804995856,1cyclictest0-21swapper/309:11:593
3468802995854,3cyclictest3512393-21kworker/u8:3+events_unbound09:38:551
3468801995850,6cyclictest3510750-21latency_hist09:20:010
3468801995752,4cyclictest3522385-21kworker/u8:0+events_unbound10:25:200
3468801995749,6cyclictest3525605-21latency_hist10:05:000
3468802995652,3cyclictest3541562-21kworker/u8:2+events_unbound11:09:541
3468801995649,5cyclictest3464143-21kworker/u8:1+flush-179:007:10:240
3468801995644,9cyclictest1213033-21systemd-journal10:40:000
3468802995552,2cyclictest0-21swapper/110:52:581
3468802995549,4cyclictest3559532-21kworker/u8:0+flush-179:012:05:211
3468801995548,5cyclictest3472004-21kworker/u8:3+flush-179:008:20:180
3468801995546,7cyclictest3472004-21kworker/u8:3+flush-179:007:30:220
3468801995449,3cyclictest3500922-21kworker/u8:3+flush-179:009:05:210
3468801995448,4cyclictest3573866-21kworker/u8:1+flush-179:012:35:210
3468802995349,3cyclictest3479977-21kworker/u8:0+flush-179:008:10:101
3468802995348,4cyclictest3505702-21kworker/u8:0+flush-179:009:04:561
3468802995342,8cyclictest510-21rs:main1
3468802995248,3cyclictest3495095-21kworker/u8:1+flush-179:008:39:561
3468801995241,4cyclictest3565965-21kworker/u8:2+events_unbound12:25:000
3468801995147,2cyclictest3557947-21/usr/sbin/munin11:45:230
3468801995145,4cyclictest3472004-21kworker/u8:3+flush-179:007:55:210
3468802995046,3cyclictest3500922-21kworker/u8:3+flush-179:008:50:261
3468802995045,4cyclictest3528767-21kworker/u8:3+flush-179:010:15:161
3468801995045,4cyclictest3544748-21kworker/u8:3+flush-179:011:20:140
3468801995045,4cyclictest3507292-21kworker/u8:1+events_unbound09:25:250
3468801994946,2cyclictest3479977-21kworker/u8:0+events_unbound08:25:140
3468801994941,5cyclictest3541562-21kworker/u8:2+flush-179:011:35:150
3468801994939,8cyclictest3528767-21kworker/u8:3+events_unbound10:15:160
3468801994938,8cyclictest3541562-21kworker/u8:2+events_unbound11:15:150
4577091480,12ptp4l441ktimers/307:09:553
3468801994741,3cyclictest3474425-21kworker/u8:1+flush-179:007:45:210
3468801994735,9cyclictest3567507-21latency_hist12:15:010
3468801994641,4cyclictest3541562-21kworker/u8:2+flush-179:011:30:160
3468801994640,4cyclictest3472004-21kworker/u8:3+flush-179:008:40:160
346880199461,43cyclictest714-21Xorg12:07:590
3468802994541,3cyclictest3565965-21kworker/u8:2+events_unbound12:24:541
3468801994540,4cyclictest3500922-21kworker/u8:3+flush-179:008:55:170
3468801994535,8cyclictest3533819-21apt-get10:30:120
3468801994440,3cyclictest3471997-21systemd-run07:20:010
3468801994440,3cyclictest3471997-21systemd-run07:20:010
3468801994439,4cyclictest3474425-21kworker/u8:1+events_unbound07:50:230
346880199441,2cyclictest714-21Xorg09:50:590
3468801994338,4cyclictest3495095-21kworker/u8:1+flush-179:008:45:210
3468804994237,4cyclictest3570715-21turbostat12:25:003
3468801994238,3cyclictest3472004-21kworker/u8:3+events_unbound08:05:190
3468801994236,4cyclictest3541562-21kworker/u8:2+flush-179:011:45:000
3468801994135,5cyclictest3533800-21kworker/u8:1+flush-179:010:45:230
3468804994034,5cyclictest3515533-21turbostat09:35:003
346880499400,4cyclictest3539942-21turbostat10:50:003
346880499400,39cyclictest3557719-21turbostat11:45:003
346880499400,39cyclictest0-21swapper/310:57:593
346880499400,38cyclictest3471947-21turbostat07:20:013
346880499400,38cyclictest3471947-21turbostat07:20:013
3468804993934,4cyclictest3535169-21turbostat10:35:003
346880499390,4cyclictest3565934-21turbostat12:10:003
346880499390,4cyclictest3538357-21turbostat10:45:003
346880499390,4cyclictest3491070-21turbostat08:20:003
346880499390,37cyclictest3520316-21turbostat09:50:013
346880199390,38cyclictest211irq_work/011:26:590
3468804993834,3cyclictest3473562-21turbostat07:25:003
3468804993833,4cyclictest3573891-21turbostat12:35:003
3468803993835,2cyclictest0-21swapper/210:52:592
346880399380,36cyclictest0-21swapper/211:09:002
346880399380,36cyclictest0-21swapper/209:46:592
346880399380,35cyclictest0-21swapper/209:44:552
346880399380,35cyclictest0-21swapper/207:58:592
3468801993832,5cyclictest3507292-21kworker/u8:1+events_unbound09:20:140
346880499370,35cyclictest0-21swapper/307:40:593
3468803993733,2cyclictest0-21swapper/208:22:002
346880399370,35cyclictest0-21swapper/211:23:592
346880399370,35cyclictest0-21swapper/209:04:002
346880299375,4cyclictest281ktimers/107:30:141
3468801993732,4cyclictest3474425-21kworker/u8:1+flush-179:007:25:220
3468804993634,1cyclictest0-21swapper/311:14:543
3468804993631,4cyclictest3560893-21turbostat11:55:003
346880499360,35cyclictest0-21swapper/312:11:593
346880499360,1cyclictest0-21swapper/312:01:593
346880499360,1cyclictest0-21swapper/309:58:593
3468803993633,2cyclictest0-21swapper/212:08:592
346880399360,1cyclictest0-21swapper/210:00:002
346880399360,1cyclictest0-21swapper/208:16:582
3468801993633,2cyclictest0-21swapper/011:12:590
3468804993533,1cyclictest0-21swapper/312:26:593
3468804993533,1cyclictest0-21swapper/310:35:583
346880499350,1cyclictest0-21swapper/308:31:593
346880499350,1cyclictest0-21swapper/308:11:593
3468803993533,1cyclictest0-21swapper/212:34:592
346880399350,1cyclictest0-21swapper/208:07:002
346880399350,1cyclictest0-21swapper/208:02:592
3468801993528,5cyclictest3559532-21kworker/u8:0+flush-179:011:50:210
3468804993432,1cyclictest0-21swapper/308:52:593
3468804993430,2cyclictest0-21swapper/307:56:593
3468803993432,1cyclictest0-21swapper/207:24:592
3468801993427,5cyclictest3479977-21kworker/u8:0+flush-179:008:00:160
3468804993331,1cyclictest0-21swapper/311:46:593
3468804993331,1cyclictest0-21swapper/309:54:563
3468804993331,1cyclictest0-21swapper/308:24:553
3468804993326,6cyclictest3544722-21turbostat11:05:013
3468803993331,1cyclictest0-21swapper/209:09:592
3468804993230,1cyclictest0-21swapper/310:24:583
3468804993230,1cyclictest0-21swapper/308:38:593
3468803993129,1cyclictest0-21swapper/210:29:592
3468803993128,2cyclictest0-21swapper/209:13:582
3468804993028,1cyclictest0-21swapper/309:39:593
3468804993028,1cyclictest0-21swapper/308:57:593
3468803993027,2cyclictest0-21swapper/211:28:002
3468803993027,2cyclictest0-21swapper/209:25:582
3468803993027,2cyclictest0-21swapper/207:45:592
3468803993026,2cyclictest0-21swapper/207:50:592
346880399300,28cyclictest0-21swapper/210:10:122
4577091290,7ptp4l441ktimers/311:25:023
4577091290,7ptp4l441ktimers/307:50:003
3468804992926,2cyclictest0-21swapper/311:05:143
346880499290,28cyclictest0-21swapper/311:30:123
3468803992927,1cyclictest0-21swapper/212:15:132
3468803992926,2cyclictest0-21swapper/212:35:142
3468803992926,2cyclictest0-21swapper/212:25:132
3468803992926,2cyclictest0-21swapper/212:24:562
3468803992926,2cyclictest0-21swapper/210:35:132
3468803992926,2cyclictest0-21swapper/209:35:142
3468803992926,2cyclictest0-21swapper/208:45:132
3468803992926,2cyclictest0-21swapper/208:12:592
3468803992926,2cyclictest0-21swapper/207:10:592
346880399290,28cyclictest0-21swapper/210:00:122
346880399290,28cyclictest0-21swapper/207:30:142
346880399290,27cyclictest0-21swapper/210:05:132
346880399290,27cyclictest0-21swapper/208:25:142
4577091280,7ptp4l61490irq/134-eno1-TxRx-008:49:593
4577091280,7ptp4l441ktimers/308:30:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-009:20:013
3468804992826,1cyclictest0-21swapper/311:35:133
3468804992826,1cyclictest0-21swapper/310:25:143
346880499280,27cyclictest0-21swapper/307:35:143
346880499280,26cyclictest0-21swapper/309:00:143
346880499280,1cyclictest0-21swapper/310:00:023
3468803992825,2cyclictest0-21swapper/211:15:132
3468803992825,2cyclictest0-21swapper/211:10:122
346880399280,26cyclictest0-21swapper/211:40:022
346880399280,26cyclictest0-21swapper/207:15:132
346880399280,26cyclictest0-21swapper/207:15:132
3468802992822,4cyclictest0-21swapper/107:10:011
4577091270,7ptp4l61490irq/134-eno1-TxRx-010:09:563
4577091270,6ptp4l61490irq/134-eno1-TxRx-008:10:013
4577091270,6ptp4l441ktimers/307:54:593
3468804992725,1cyclictest0-21swapper/308:42:593
3468804992725,1cyclictest0-21swapper/307:10:133
346880499270,26cyclictest0-21swapper/309:40:583
346880499270,25cyclictest4577091ptp4l09:05:593
346880499270,25cyclictest0-21swapper/309:20:593
346880399270,2cyclictest0-21swapper/208:38:582
3468801992722,3cyclictest0-21swapper/010:45:000
4577091260,6ptp4l61490irq/134-eno1-TxRx-011:19:553
4577091260,6ptp4l441ktimers/310:54:553
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:39:563
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:19:553
4577091260,5ptp4l441ktimers/311:29:563
4577091260,5ptp4l441ktimers/307:29:553
3468804992623,2cyclictest0-21swapper/310:15:133
3468803992623,2cyclictest0-21swapper/211:56:592
3468803992623,2cyclictest0-21swapper/208:44:562
3468803992623,1cyclictest0-21swapper/212:05:012
3468803992622,2cyclictest0-21swapper/208:53:582
346880399260,2cyclictest0-21swapper/210:42:592
346880399260,24cyclictest0-21swapper/208:57:592
231999260,14rtkit-daemon3468700-21sshd07:08:530
4577091250,5ptp4l441ktimers/308:04:553
3468804992523,1cyclictest0-21swapper/307:30:593
3468803992523,1cyclictest0-21swapper/212:15:002
3468803992523,1cyclictest0-21swapper/210:24:592
3468803992522,2cyclictest0-21swapper/211:50:132
3468803992522,2cyclictest0-21swapper/210:57:592
4577091240,4ptp4l61490irq/134-eno1-TxRx-011:59:563
4577091240,4ptp4l441ktimers/309:29:563
3468804992422,1cyclictest0-21swapper/310:13:003
3468803992422,1cyclictest0-21swapper/211:33:582
3468803992420,2cyclictest0-21swapper/207:29:552
3468803992119,1cyclictest0-21swapper/207:39:592
3468803992118,2cyclictest0-21swapper/210:49:552
3468803992118,2cyclictest0-21swapper/210:16:002
3468803992118,2cyclictest0-21swapper/207:44:552
3468803991715,1cyclictest0-21swapper/211:50:002
3468803991512,2cyclictest0-21swapper/209:50:592
3468803991311,2cyclictest0-21swapper/208:30:592
3468803991210,1cyclictest0-21swapper/211:39:592
346880399118,2cyclictest0-21swapper/211:02:592
346880399107,2cyclictest0-21swapper/210:33:002
34688039997,2cyclictest0-21swapper/209:20:002
34688039974,2cyclictest0-21swapper/209:20:022
34688039960,5cyclictest0-21swapper/209:32:532
34688039941,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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