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2026-01-22 - 11:20
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 50 highest latencies:
System rackeslot6.osadl.org (updated Thu Jan 22, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92078499112104,5cyclictest941674-21kworker/u8:3+flush-179:020:40:010
9207899910894,11cyclictest1024154-21latency_hist00:30:011
920784999790,5cyclictest1012680-21kworker/u8:3+flush-179:000:10:010
920784999082,5cyclictest925462-21kworker/u8:3+events_unbound19:25:000
920784998981,5cyclictest961040-21kworker/u8:3+events_unbound21:20:010
920784998881,4cyclictest917131-21kworker/u8:1+events_unbound19:10:230
920784998778,6cyclictest998150-21kworker/u8:3+flush-179:023:15:210
920784998776,8cyclictest932146-21kworker/u8:1+flush-179:020:10:200
920789998676,7cyclictest990403-21kworker/u8:0+flush-179:023:00:001
920794998555,1cyclictest0-21swapper/321:51:003
920789998575,8cyclictest927308-21/usr/sbin/munin19:30:231
920784998578,4cyclictest928647-21kworker/u8:2+events_unbound19:40:000
920789998476,6cyclictest920676-21latency_hist19:10:021
920784998476,6cyclictest1012680-21kworker/u8:3+flush-179:000:05:000
920789998372,8cyclictest998115-21latency_hist23:10:001
920789997768,6cyclictest982202-21latency_hist22:20:001
920789997768,6cyclictest966034-21latency_hist21:30:011
920789997768,6cyclictest966034-21latency_hist21:30:011
920784997769,6cyclictest985421-21kworker/u8:2+events_unbound22:30:240
920784997769,6cyclictest970859-21kworker/u8:1+flush-179:022:30:000
920784997763,13cyclictest970859-21kworker/u8:1+events_unbound21:55:230
920784997668,6cyclictest941674-21kworker/u8:3+flush-179:020:50:240
920784997668,5cyclictest985421-21kworker/u8:2+events_unbound23:50:170
920789997563,9cyclictest266-21systemd-journal00:20:001
920784997569,5cyclictest1012680-21kworker/u8:3+flush-179:023:59:560
920784997564,9cyclictest992006-21apt-get22:50:110
920784997468,4cyclictest990403-21kworker/u8:0+flush-179:022:55:210
920784997468,4cyclictest970859-21kworker/u8:1+flush-179:021:50:200
920784997467,6cyclictest1004976-21kworker/u8:0+flush-179:023:40:000
920784997464,7cyclictest985421-21kworker/u8:2+events_unbound23:20:020
920789997366,5cyclictest988584-21latency_hist22:40:021
920784997365,6cyclictest941674-21kworker/u8:3+flush-179:020:45:010
920784997364,7cyclictest1017561-21kworker/u8:0+flush-179:000:30:020
920789997257,12cyclictest1025999-21latency_hist00:35:021
920784997266,5cyclictest961040-21kworker/u8:3+events_unbound21:25:010
920784997262,7cyclictest970859-21kworker/u8:1+events_unbound22:15:020
920784997064,4cyclictest985421-21kworker/u8:2+events_unbound23:40:230
920784997063,4cyclictest990403-21kworker/u8:0+flush-179:023:05:140
920784997061,6cyclictest935280-21latency_hist19:55:000
920784996958,4cyclictest985421-21kworker/u8:2+events_unbound23:00:240
920784996956,5cyclictest961040-21kworker/u8:3+events_unbound21:45:000
920789996856,9cyclictest266-21systemd-journal23:10:201
920784996761,5cyclictest985421-21kworker/u8:2+flush-179:022:49:550
920784996761,4cyclictest978999-21kworker/u8:2+events_unbound22:10:200
920784996760,5cyclictest962627-21kworker/u8:4+events_unbound21:25:030
920784996760,5cyclictest962627-21kworker/u8:4+events_unbound21:25:030
920784996760,5cyclictest940030-21kworker/u8:2+flush-179:020:10:010
920784996759,6cyclictest932146-21kworker/u8:1+flush-179:020:25:240
920784996660,4cyclictest970859-21kworker/u8:1+events_unbound22:35:220
920784996659,5cyclictest925462-21kworker/u8:3+events_unbound19:30:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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