Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm1-V0.7.27-3

[Florian Schmidt]

On Tue, 16 Nov 2004 23:31:35 +0100
Ingo Molnar <mingo@xxxxxxx> wrote:

> and i'd suggest to chrt irq 1 back to below prio 90, maybe this explains
> the console-switching latency? If you do a console-switch via the
> keyboard then its priority 99 can get inherited by events/0 which then
> does the quite expensive VGA console clearing/copying with priority 99,
> possibly delaying rtc_wakeup quite significantly, easily for a
> millisecond or so. So what you are seeing might be priority inheritance
> handling at work!
> 

ah, will try this right away..

flo
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