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2026-05-07 - 23:36
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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 May 07, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
506495999287,4cyclictest519498-21kworker/u8:3+events_unbound08:20:010
506495998880,6cyclictest527415-21latency_hist08:15:000
506495998781,4cyclictest554985-21kworker/u8:2+events_unbound09:45:230
506497998576,6cyclictest550237-21latency_hist09:25:011
506497998560,22cyclictest586012-21/usr/sbin/munin11:15:231
506495998577,7cyclictest532427-21kworker/u8:2+events_unbound09:10:000
506497998464,18cyclictest534084-21kworker/u8:1+flush-179:008:44:591
506495998274,5cyclictest591068-21kworker/u8:1+events_unbound11:35:150
506495998074,4cyclictest525037-21kworker/u8:0+flush-179:008:10:000
506497997867,8cyclictest553395-21kworker/u8:3+flush-179:010:05:221
506495997873,4cyclictest493525-21kworker/u8:1+events_unbound08:00:230
506497997655,18cyclictest1213033-21systemd-journal11:37:051
506495997468,4cyclictest532427-21kworker/u8:2+events_unbound08:40:140
506497997357,12cyclictest1213033-21systemd-journal09:20:001
506495997364,6cyclictest525037-21kworker/u8:0+flush-179:008:25:140
506497997267,3cyclictest532427-21kworker/u8:2+flush-179:008:55:011
506495997264,6cyclictest516287-21latency_hist07:40:010
506497997161,7cyclictest583920-21kworker/u8:0+flush-179:011:20:171
506495997164,6cyclictest550909-21kworker/u8:0+flush-179:009:25:250
506495997162,6cyclictest577559-21latency_hist10:50:000
506495997162,6cyclictest577559-21latency_hist10:50:000
506495997157,4cyclictest553395-21kworker/u8:3+events_unbound09:40:000
506497997063,4cyclictest569637-21kworker/u8:2+events_unbound10:50:241
506495997064,5cyclictest608373-21kworker/u8:3+flush-179:012:30:000
506495997064,4cyclictest508014-21true07:15:010
506495997063,6cyclictest578341-21kworker/u8:0+flush-179:011:00:000
506495997063,4cyclictest509833-21kworker/u8:3+events_unbound07:30:130
506495997039,1cyclictest0-21swapper/009:44:580
506495996955,12cyclictest534084-21kworker/u8:1+flush-179:008:50:250
506497996859,7cyclictest583942-21apt-get11:10:001
506495996755,10cyclictest535641-21apt-get08:40:000
506495996657,7cyclictest558585-21cp09:50:030
506495996560,4cyclictest579133-21kworker/u8:1+flush-179:011:04:550
506495996554,9cyclictest518422-21diskstats07:45:140
506495996459,4cyclictest583920-21kworker/u8:0+flush-179:011:10:210
506495996457,5cyclictest564843-21kworker/u8:0+flush-179:010:20:210
506495996456,6cyclictest550909-21kworker/u8:0+events_unbound09:30:140
506497996357,4cyclictest534084-21kworker/u8:1+flush-179:009:34:551
506497996354,6cyclictest1213033-21systemd-journal11:27:051
506497996354,6cyclictest1213033-21systemd-journal11:27:051
506497996350,11cyclictest554985-21kworker/u8:2+flush-179:009:39:541
506495996357,5cyclictest572746-21kworker/u8:3+flush-179:010:45:000
506495996357,4cyclictest572746-21kworker/u8:3+events_unbound10:40:010
506495996356,6cyclictest594040-21kworker/u8:0+flush-179:012:10:000
506495996356,5cyclictest600638-21apt-get12:00:100
506495996351,10cyclictest590570-21apt-get11:30:000
506495996351,10cyclictest590570-21apt-get11:30:000
506497996256,5cyclictest583920-21kworker/u8:0+events_unbound11:10:231
506495996258,3cyclictest594040-21kworker/u8:0+flush-179:012:10:260
506495996256,4cyclictest534084-21kworker/u8:1+flush-179:008:45:130
506495996255,5cyclictest519498-21kworker/u8:3+flush-179:008:30:190
506497996155,4cyclictest513046-21kworker/u8:0+flush-179:007:40:171
506495996154,5cyclictest534084-21kworker/u8:1+events_unbound09:20:170
506495996153,6cyclictest1213033-21systemd-journal09:05:000
50649599610,58cyclictest1-21systemd08:00:010
506497996055,4cyclictest603599-21kworker/u8:2+flush-179:012:15:011
506497996053,5cyclictest529029-21apt-get08:20:001
506497996048,10cyclictest565077-21apt-get10:10:111
506497995954,4cyclictest525037-21kworker/u8:0+flush-179:008:25:251
506495995953,5cyclictest493525-21kworker/u8:1+flush-179:007:15:140
506495995953,4cyclictest594040-21kworker/u8:0+flush-179:012:20:160
506495995953,4cyclictest564843-21kworker/u8:0+events_unbound10:20:010
506495995953,4cyclictest564843-21kworker/u8:0+events_unbound10:20:010
506497995846,10cyclictest554985-21kworker/u8:2+events_unbound09:40:251
506497995752,4cyclictest574344-21kworker/u8:0+flush-179:010:39:551
506495995752,4cyclictest509833-21kworker/u8:3+events_unbound07:25:200
506495995751,4cyclictest547026-21kworker/u8:3+flush-179:009:15:200
506497995649,5cyclictest601969-21latency_hist12:05:011
506495995651,4cyclictest583920-21kworker/u8:0+flush-179:011:25:000
506495995649,5cyclictest506351-21latency_hist07:10:020
506495995648,7cyclictest598750-21kworker/u8:3+flush-179:011:55:010
50649599561,53cyclictest1-21systemd10:33:040
506497995548,5cyclictest571189-21latency_hist10:30:001
506495995548,6cyclictest553395-21kworker/u8:3+flush-179:010:15:000
506495995542,11cyclictest1213033-21systemd-journal10:10:010
506497995442,10cyclictest1213033-21systemd-journal12:32:051
506497995348,4cyclictest509833-21kworker/u8:3+flush-179:007:24:561
506497995345,6cyclictest1213033-21systemd-journal12:25:001
506495995346,5cyclictest583920-21kworker/u8:0+events_unbound11:30:030
506497995248,3cyclictest583920-21kworker/u8:0+flush-179:011:30:111
506497995238,13cyclictest493525-21kworker/u8:1+flush-179:008:00:001
506495995248,3cyclictest546178-21kworker/u8:0+flush-179:009:10:270
506495995246,5cyclictest553395-21kworker/u8:3+events_unbound10:00:000
506495995246,4cyclictest611772-21apt-get12:35:120
506497995143,6cyclictest594040-21kworker/u8:0+flush-179:012:05:171
506497995141,8cyclictest1213033-21systemd-journal07:50:011
506495995144,5cyclictest589209-21kworker/u8:2+flush-179:011:40:150
506497995042,6cyclictest572746-21kworker/u8:3+flush-179:010:40:211
506497995042,6cyclictest553395-21kworker/u8:3+events_unbound10:25:001
506495995043,6cyclictest594040-21kworker/u8:0+flush-179:012:15:250
506497994941,6cyclictest515007-21cp07:35:141
506497994941,5cyclictest534084-21kworker/u8:1+flush-179:008:55:211
506497994939,8cyclictest545710-21apt-get09:10:111
4577091490,14ptp4l61490irq/134-eno1-TxRx-007:10:003
506497994842,5cyclictest1213033-21systemd-journal09:50:471
506495994843,4cyclictest569637-21kworker/u8:2+flush-179:010:25:250
506497994740,6cyclictest589209-21kworker/u8:2+events_unbound11:45:141
506497994740,5cyclictest510-21rs:main1
506495994739,6cyclictest519498-21kworker/u8:3+events_unbound08:20:030
506497994640,4cyclictest530912-21systemd-run08:25:001
506497994640,4cyclictest493525-21kworker/u8:1+flush-179:007:15:001
506495994638,6cyclictest563234-21latency_hist10:05:000
506495994636,8cyclictest510093-21apt-get07:20:120
506495994536,6cyclictest510-21rs:main0
506497994439,4cyclictest603599-21kworker/u8:2+flush-179:012:35:231
506497994438,4cyclictest509833-21kworker/u8:3+flush-179:007:25:151
506495994439,4cyclictest579133-21kworker/u8:1+flush-179:011:05:280
506495994439,4cyclictest569637-21kworker/u8:2+flush-179:010:50:210
506495994438,4cyclictest534084-21kworker/u8:1+flush-179:008:55:280
506497994338,4cyclictest553395-21kworker/u8:3+events_unbound09:55:231
506497994338,3cyclictest519498-21kworker/u8:3+flush-179:007:50:001
506497994337,4cyclictest519498-21kworker/u8:3+events_unbound08:30:141
506497994335,6cyclictest598750-21kworker/u8:3+flush-179:012:00:011
50649799432,39cyclictest597196-21turbostat11:54:551
506495994338,4cyclictest519498-21kworker/u8:3+flush-179:007:50:250
506497994237,4cyclictest572746-21kworker/u8:3+flush-179:010:34:551
506497994237,4cyclictest493525-21kworker/u8:1+flush-179:008:05:241
506497994137,3cyclictest493525-21kworker/u8:1+events_unbound08:10:141
506497994136,4cyclictest594040-21kworker/u8:0+events_unbound12:15:241
506497994136,4cyclictest532427-21kworker/u8:2+flush-179:008:50:001
506495994136,4cyclictest603599-21kworker/u8:2+flush-179:012:30:150
50650299400,38cyclictest611520-21turbostat12:35:003
50650299400,38cyclictest603562-21turbostat12:10:003
50650299400,38cyclictest601972-21turbostat12:04:593
50650299400,38cyclictest511426-21turbostat07:25:003
50650299400,1cyclictest0-21swapper/311:39:593
506497994033,5cyclictest572746-21kworker/u8:3+flush-179:011:00:211
506497994031,7cyclictest554985-21kworker/u8:2+events_unbound09:45:191
506495994034,4cyclictest594040-21kworker/u8:0+flush-179:012:00:010
506502993938,1cyclictest0-21swapper/310:57:593
506502993934,4cyclictest521054-21turbostat07:54:593
506502993933,5cyclictest507974-21turbostat07:15:013
506502993933,4cyclictest560048-21turbostat09:55:013
50650099390,36cyclictest0-21swapper/212:13:592
506497993933,4cyclictest579133-21kworker/u8:1+flush-179:010:55:161
506497993933,4cyclictest509841-21latency_hist07:20:021
50650299380,37cyclictest579163-21turbostat10:55:003
506500993835,2cyclictest0-21swapper/211:32:592
50650099380,36cyclictest0-21swapper/211:56:592
50650099380,36cyclictest0-21swapper/211:48:592
50650099380,35cyclictest0-21swapper/211:27:592
50650099380,35cyclictest0-21swapper/211:27:592
50650099380,35cyclictest0-21swapper/207:50:002
506497993832,4cyclictest519498-21kworker/u8:3+flush-179:008:00:261
50649799382,31cyclictest576231-21apt-get10:45:121
50649799382,31cyclictest576231-21apt-get10:45:111
506502993733,3cyclictest583945-21turbostat11:10:003
50650299370,35cyclictest0-21swapper/310:21:003
506500993734,2cyclictest0-21swapper/212:16:592
506500993734,2cyclictest0-21swapper/210:40:592
506500993734,2cyclictest0-21swapper/208:47:592
50650099370,35cyclictest0-21swapper/210:39:592
50650099370,35cyclictest0-21swapper/210:30:002
50650099370,35cyclictest0-21swapper/210:02:592
50650099370,2cyclictest0-21swapper/208:54:592
506497993730,5cyclictest589209-21kworker/u8:2+flush-179:011:40:191
506502993633,2cyclictest0-21swapper/307:29:003
506502993630,5cyclictest522675-21turbostat08:00:013
50650299360,35cyclictest0-21swapper/309:01:583
50650299360,35cyclictest0-21swapper/308:40:003
50650299360,35cyclictest0-21swapper/308:32:583
50650299360,1cyclictest0-21swapper/310:16:593
50650299360,1cyclictest0-21swapper/310:16:593
50650299360,1cyclictest0-21swapper/309:34:563
50650299360,1cyclictest0-21swapper/307:40:593
506500993634,1cyclictest0-21swapper/208:10:012
506500993633,2cyclictest0-21swapper/210:48:002
506500993633,2cyclictest0-21swapper/210:47:592
50650099360,1cyclictest0-21swapper/211:52:592
50650099360,1cyclictest0-21swapper/211:43:592
506495993630,4cyclictest589209-21kworker/u8:2+events_unbound11:45:180
506502993533,1cyclictest547056-21turbostat09:15:003
506502993533,1cyclictest0-21swapper/311:10:583
50650099350,1cyclictest0-21swapper/209:25:012
506497993530,4cyclictest563320-21latency_hist10:05:011
506495993530,4cyclictest513046-21kworker/u8:0+flush-179:007:40:210
506502993432,1cyclictest0-21swapper/307:37:593
506500993432,1cyclictest0-21swapper/208:39:592
506500993431,2cyclictest0-21swapper/209:57:002
506500993431,2cyclictest0-21swapper/209:13:582
506500993431,2cyclictest0-21swapper/208:12:002
506497993429,3cyclictest534053-21turbostat08:39:551
506497993426,4cyclictest566662-21apt-get10:15:141
506497993426,4cyclictest566662-21apt-get10:15:131
506497993419,13cyclictest542537-21apt-get09:00:111
506502993331,1cyclictest0-21swapper/311:50:593
506502993327,5cyclictest539091-21turbostat08:49:593
506500993330,2cyclictest0-21swapper/212:32:592
506500993330,2cyclictest0-21swapper/211:15:592
506500993330,2cyclictest0-21swapper/210:52:592
506500993330,2cyclictest0-21swapper/210:06:592
506500993330,2cyclictest0-21swapper/207:34:552
506500993229,2cyclictest0-21swapper/210:16:002
506500993229,2cyclictest0-21swapper/210:15:592
506497993227,4cyclictest550909-21kworker/u8:0+flush-179:009:25:231
506497993227,4cyclictest513046-21kworker/u8:0+flush-179:007:34:561
506497993225,6cyclictest1213033-21systemd-journal12:29:551
50650299310,30cyclictest0-21swapper/310:01:593
506500993129,1cyclictest0-21swapper/212:04:592
506500993128,2cyclictest0-21swapper/207:41:592
506502993028,1cyclictest0-21swapper/311:31:593
506502993028,1cyclictest0-21swapper/307:34:593
506502993027,2cyclictest0-21swapper/311:40:593
506502993025,4cyclictest532480-21turbostat08:30:003
506502993024,4cyclictest606740-21turbostat12:20:013
50650299300,2cyclictest0-21swapper/309:40:123
50650299300,28cyclictest0-21swapper/312:25:133
50650299300,28cyclictest0-21swapper/309:35:133
50650299300,28cyclictest0-21swapper/308:15:123
50650299300,27cyclictest0-21swapper/312:10:593
50650299300,27cyclictest0-21swapper/309:05:143
506500993028,1cyclictest0-21swapper/209:50:002
506500993027,2cyclictest0-21swapper/212:09:552
506500993027,2cyclictest0-21swapper/211:00:122
506500993027,2cyclictest0-21swapper/208:40:022
506500993027,2cyclictest0-21swapper/208:20:032
506500993027,2cyclictest0-21swapper/207:37:592
50650099300,29cyclictest0-21swapper/209:05:152
50650099300,28cyclictest0-21swapper/207:15:022
506502992927,1cyclictest0-21swapper/309:17:593
506502992927,1cyclictest0-21swapper/308:50:593
506502992927,1cyclictest0-21swapper/308:00:123
506502992926,2cyclictest0-21swapper/310:32:593
506502992926,2cyclictest0-21swapper/308:21:593
50650299290,27cyclictest0-21swapper/312:35:143
50650299290,1cyclictest0-21swapper/308:14:583
506500992927,1cyclictest0-21swapper/212:25:002
506500992927,1cyclictest0-21swapper/210:35:002
506500992927,1cyclictest0-21swapper/208:05:012
50650099290,28cyclictest0-21swapper/212:35:142
50650099290,28cyclictest0-21swapper/211:10:112
50650099290,28cyclictest0-21swapper/209:35:122
506502992826,1cyclictest0-21swapper/311:55:133
506502992825,2cyclictest0-21swapper/312:21:593
506502992825,2cyclictest0-21swapper/311:30:013
506502992825,2cyclictest0-21swapper/311:30:013
506502992825,2cyclictest0-21swapper/308:55:133
50650299280,26cyclictest0-21swapper/308:40:023
50650299280,26cyclictest0-21swapper/307:45:123
50650299280,26cyclictest0-21swapper/307:15:023
506500992826,1cyclictest0-21swapper/208:55:122
506500992825,2cyclictest0-21swapper/207:20:132
50650099280,26cyclictest0-21swapper/207:50:122
4577091280,7ptp4l61490irq/134-eno1-TxRx-010:30:003
4577091280,6ptp4l441ktimers/310:50:003
4577091280,6ptp4l441ktimers/310:50:003
506502992725,1cyclictest0-21swapper/311:15:123
506502992724,2cyclictest0-21swapper/309:22:593
50650299270,1cyclictest0-21swapper/311:45:123
506500992724,2cyclictest0-21swapper/210:10:592
506500992724,2cyclictest0-21swapper/207:11:592
50650099270,26cyclictest0-21swapper/212:25:582
50650099270,26cyclictest0-21swapper/210:23:592
4577091270,7ptp4l61490irq/134-eno1-TxRx-011:25:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-008:10:013
4577091270,5ptp4l441ktimers/310:15:013
4577091270,3ptp4l441ktimers/309:59:563
506502992624,1cyclictest0-21swapper/310:05:593
506502992624,1cyclictest0-21swapper/309:26:593
506500992623,2cyclictest0-21swapper/208:33:582
4577091260,5ptp4l441ktimers/310:39:553
50650299250,24cyclictest0-21swapper/310:44:563
50650099250,2cyclictest0-21swapper/209:15:592
4577091250,3ptp4l441ktimers/309:45:013
506500992423,1cyclictest0-21swapper/211:09:592
4577091240,4ptp4l441ktimers/311:04:553
231999230,12rtkit-daemon506270-21/usr/sbin/munin07:05:341
506500992220,1cyclictest0-21swapper/209:04:592
506500992219,2cyclictest0-21swapper/209:51:592
506500992017,2cyclictest0-21swapper/211:37:592
506500991917,1cyclictest0-21swapper/208:25:132
506500991917,1cyclictest0-21swapper/207:30:002
506500991916,2cyclictest0-21swapper/210:57:592
506500991815,2cyclictest0-21swapper/209:40:132
506500991815,2cyclictest0-21swapper/209:30:112
506500991715,1cyclictest0-21swapper/207:58:592
506500991613,2cyclictest0-21swapper/208:15:112
506500991513,1cyclictest0-21swapper/211:23:592
5065009970,6cyclictest0-21swapper/209:29:552
5065009940,3cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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