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2026-02-07 - 12:49
[ 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 Sat Feb 07, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
375345399127116,8cyclictest1049265-21cups-browsed00:00:000
37534539910394,6cyclictest3849066-21cat00:10:000
3753453999974,22cyclictest3783859-21latency_hist20:45:010
3753455999587,6cyclictest3774293-21latency_hist20:15:011
3753455999472,20cyclictest3834785-21apt-get23:25:111
3753453999286,4cyclictest3772741-21kworker/u8:2+events_unbound21:30:010
3753455998465,16cyclictest3844068-21latency_hist23:55:011
3753455998173,6cyclictest3785446-21latency_hist20:50:011
3753453998172,7cyclictest3810930-21apt-get22:10:010
3753453998071,7cyclictest3769258-21latency_hist20:00:010
3753453998070,7cyclictest3772741-21kworker/u8:2+flush-179:021:40:160
3753453997971,6cyclictest3767068-21kworker/u8:1+flush-179:020:30:000
3753455997868,7cyclictest3761300-21latency_hist19:35:021
3753453997566,7cyclictest266-21systemd-journal20:20:010
3753455997467,5cyclictest3813474-21kworker/u8:0+events_unbound22:25:011
3753453997467,5cyclictest3796633-21kworker/u8:3+flush-179:021:35:210
3753453997466,5cyclictest3833989-21kworker/u8:3+flush-179:023:30:210
3753455997368,3cyclictest3853733-21kworker/u8:0+events_unbound00:30:001
3753455997368,3cyclictest3853733-21kworker/u8:0+events_unbound00:30:001
3753455997162,6cyclictest3819157-21apt-get22:35:001
3753453997163,5cyclictest266-21systemd-journal23:15:000
3753455996958,8cyclictest266-21systemd-journal00:04:011
3753455996958,8cyclictest266-21systemd-journal00:04:001
3753453996861,5cyclictest3790204-21kworker/u8:3+events_unbound21:05:010
3753453996758,7cyclictest266-21systemd-journal19:49:550
3753453996559,4cyclictest3840932-21kworker/u8:2+flush-179:023:45:200
3753460996460,2cyclictest0-21swapper/322:12:583
3753455996458,4cyclictest3847259-21kworker/u8:3+flush-179:000:20:011
3753455996449,13cyclictest3796633-21kworker/u8:3+flush-179:022:00:261
3753453996456,6cyclictest3777490-21latency_hist20:25:010
3753457996360,2cyclictest0-21swapper/222:30:592
3753455996252,8cyclictest3845667-40logrotate00:00:011
3753453996253,6cyclictest3847324-21latency_hist00:05:010
3753453996253,6cyclictest3847324-21latency_hist00:05:000
3753455996150,9cyclictest3803226-21apt-get21:45:101
3753455996052,6cyclictest3813006-21/usr/sbin/munin22:15:231
3753455996049,9cyclictest3847580-21apt-get00:05:121
3753455996049,8cyclictest3826288-21latency_hist22:55:011
3753453996055,4cyclictest3753359-21kworker/u8:0+flush-179:019:20:260
3753455995933,7cyclictest3849149-21/usr/sbin/munin00:10:161
3753453995953,5cyclictest3803013-21kworker/u8:1+flush-179:022:25:220
3753453995947,9cyclictest3819173-21http22:35:000
3753455995850,5cyclictest3834528-21latency_hist23:25:001
3753455995849,7cyclictest3762896-21latency_hist19:40:011
3753453995851,5cyclictest3833989-21kworker/u8:3+flush-179:023:55:010
3753455995748,7cyclictest3831071-21latency_hist23:10:011
3753455995649,5cyclictest3737805-21kworker/u8:2+flush-179:020:00:261
3753455995649,5cyclictest3737805-21kworker/u8:2+flush-179:020:00:261
3753455995647,6cyclictest266-21systemd-journal23:00:591
3753455995646,8cyclictest266-21systemd-journal20:24:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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