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2026-02-28 - 12:40
[ 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 28, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374626999117106,8cyclictest3843291-21latency_hist00:10:011
37462699910189,9cyclictest3804215-21latency_hist22:10:001
3746269999889,7cyclictest3757334-21kworker/u8:3+flush-179:019:55:001
3746269999785,9cyclictest3808887-21apt-get22:20:221
3746269999585,8cyclictest3820432-21apt-get23:00:001
3746269999081,7cyclictest3806093-21kworker/u8:2+flush-179:022:20:001
3746267998964,14cyclictest3844875-21latency_hist00:15:010
3746269998676,7cyclictest3812479-21latency_hist22:35:011
3746267998676,8cyclictest3849947-21kworker/u8:2+flush-179:000:30:010
3746267998676,8cyclictest3849947-21kworker/u8:2+flush-179:000:30:000
3746269998575,7cyclictest3835285-21latency_hist23:45:011
3746269998575,7cyclictest3835285-21latency_hist23:45:001
3746269998478,5cyclictest3770324-21kworker/u8:2+flush-179:021:05:251
3746269998372,8cyclictest3754106-21latency_hist19:35:021
3746267998170,8cyclictest3780062-21/usr/sbin/munin20:55:230
3746267998066,11cyclictest266-21systemd-journal19:15:000
3746269997969,7cyclictest3768702-21latency_hist20:20:011
3746269997871,5cyclictest3776654-21latency_hist20:45:011
3746269997870,6cyclictest3770324-21kworker/u8:2+events_unbound20:30:001
3746269997870,6cyclictest3770324-21kworker/u8:2+events_unbound20:30:001
3746267997852,15cyclictest3784603-21latency_hist21:10:010
3746267997745,23cyclictest3840318-21/usr/sbin/munin00:00:240
3746269997566,5cyclictest3841687-21kworker/u8:2+flush-179:000:15:211
3746267997464,7cyclictest3838453-21latency_hist23:55:010
3746267997359,10cyclictest266-21systemd-journal20:34:590
3746269997261,8cyclictest3820945-21/usr/sbin/munin23:00:221
3746267997262,7cyclictest3806057-21latency_hist22:15:010
3746269997061,6cyclictest3762069-21latency_hist20:00:011
3746267997056,11cyclictest3804226-21apt-get22:10:000
3746269996956,10cyclictest266-21systemd-journal21:50:001
3746267996940,20cyclictest3787789-21turbostat21:24:540
3746269996861,4cyclictest3833662-21kworker/u8:0+flush-179:000:20:211
3746269996757,6cyclictest3766835-21latency_hist20:15:001
3746269996659,5cyclictest3748404-21kworker/u8:2+flush-179:019:35:241
3746269996659,5cyclictest3748404-21kworker/u8:2+flush-179:019:35:241
3746269996658,5cyclictest3763664-21latency_hist20:05:021
3746269996651,13cyclictest3782094-21kworker/u8:0+flush-179:021:05:001
3746269996454,7cyclictest3830503-21latency_hist23:30:001
374626999640,63cyclictest0-21swapper/121:39:591
3746267996461,2cyclictest0-21swapper/022:37:580
374626799641,59cyclictest3820537-21unin-run23:00:000
3746273996356,5cyclictest3763687-21turbostat20:05:003
3746269996357,3cyclictest3822330-21kworker/u8:1+flush-179:023:55:021
3746269996357,3cyclictest3822330-21kworker/u8:1+flush-179:023:55:011
3746269996354,6cyclictest3822330-21kworker/u8:1+flush-179:023:10:211
3746267996354,7cyclictest3840110-21cupsd00:00:010
3746267996354,7cyclictest3840110-21cupsd00:00:000
374627399610,1cyclictest0-21swapper/321:24:593
3746269996156,4cyclictest3797382-21kworker/u8:0+flush-179:022:04:551
3746269996156,4cyclictest3797382-21kworker/u8:0+flush-179:022:04:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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