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2026-01-23 - 12:20
[ 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 Fri Jan 23, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37263319910698,6cyclictest3815904-21kworker/u8:2+events_unbound00:04:000
3726333999586,6cyclictest3736355-21kworker/u8:0+flush-179:019:45:011
3726333999488,5cyclictest3743018-21kworker/u8:3+flush-179:020:05:011
3726333999384,7cyclictest3778581-21kworker/u8:2+flush-179:022:00:001
3726333999072,14cyclictest3788091-21apt-get22:20:011
3726331998981,5cyclictest1-21systemd00:20:010
3726333998375,5cyclictest3814354-21latency_hist23:40:001
3726333998272,7cyclictest3749034-21kworker/u8:1+flush-179:020:20:241
3726333998269,4cyclictest3764271-21kworker/u8:2+flush-179:021:05:241
3726333998073,5cyclictest3812711-21kworker/u8:0+flush-179:023:55:011
3726333998072,6cyclictest3742939-21kworker/u8:0+events_unbound20:10:011
3726333997963,13cyclictest1014349-21cups-browsed00:00:001
3726331997964,11cyclictest3741132-21apt-get19:55:000
3726333997870,5cyclictest3791772-21kworker/u8:1+flush-179:023:14:591
3726333997869,7cyclictest3811384-21/usr/sbin/munin23:30:221
3726333997869,7cyclictest3811384-21/usr/sbin/munin23:30:211
3726333997771,4cyclictest3742939-21kworker/u8:0+events_unbound20:00:001
3726331997768,7cyclictest3815930-21latency_hist23:45:000
3726333997460,12cyclictest3736355-21kworker/u8:0+flush-179:019:45:241
3726333997460,12cyclictest3736355-21kworker/u8:0+flush-179:019:45:241
3726331997469,4cyclictest3749034-21kworker/u8:1+events_unbound20:24:560
3726333997366,5cyclictest3749034-21kworker/u8:1+flush-179:020:40:251
3726333997164,5cyclictest3796828-21apt-get22:45:131
3726331997160,7cyclictest3825520-21latency_hist00:15:020
3726331997057,9cyclictest266-21systemd-journal22:25:000
3726333996963,4cyclictest3760988-21latency_hist20:55:011
3726333996956,5cyclictest3743018-21kworker/u8:3+flush-179:020:15:001
3726333996762,4cyclictest3791834-21kworker/u8:3+flush-179:022:59:551
3726333996761,4cyclictest3749034-21kworker/u8:1+events_unbound20:40:011
3726333996561,3cyclictest3761023-21kworker/u8:3+flush-179:020:59:561
3726333996558,5cyclictest3782813-21kworker/u8:0+flush-179:022:04:591
3726333996553,5cyclictest3787162-21kworker/u8:2+flush-179:022:20:131
3726333996455,6cyclictest3743018-21kworker/u8:3+flush-179:020:15:211
3726333996454,7cyclictest3726276-21kworker/u8:2+flush-179:019:35:211
3726333996358,4cyclictest3749034-21kworker/u8:1+flush-179:021:00:261
3726333996357,4cyclictest3749034-21kworker/u8:1+flush-179:021:24:561
3726333996356,6cyclictest3749034-21kworker/u8:1+flush-179:021:40:001
3726333996356,5cyclictest3815904-21kworker/u8:2+flush-179:000:15:251
3726331996251,9cyclictest3822605-21apt-get00:05:120
372633799610,58cyclictest0-21swapper/219:48:592
372633799610,58cyclictest0-21swapper/219:48:592
3726333996156,4cyclictest3789917-21kworker/u8:0+flush-179:022:30:201
3726333996156,3cyclictest3726276-21kworker/u8:2+flush-179:019:20:151
3726333996155,4cyclictest3812711-21kworker/u8:0+flush-179:000:05:231
3726333996154,5cyclictest3768981-21kworker/u8:0+flush-179:021:40:211
3726333996146,13cyclictest3764271-21kworker/u8:2+flush-179:021:15:231
3726333996053,5cyclictest3768981-21kworker/u8:0+flush-179:021:45:151
3726331996056,3cyclictest3778584-21kworker/u8:3+events_unbound22:02:370
3726331996051,6cyclictest266-21systemd-journal21:20:010
3726333995950,6cyclictest3787162-21kworker/u8:2+flush-179:022:25:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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