Re: [Qemu-devel] fixing qemu busy wait

[Andreas Färber]

Am 20.02.2013 20:39, schrieb Orr Dvory:
> the new patch is attached...

Please see http://wiki.qemu.org/Contribute/SubmitAPatch for multiple
reasons why your patch won't get applied or get much review as is.

Andreas

> 
> 
> On Sun, Feb 17, 2013 at 6:32 PM, Orr Dvory <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     Yes it would :)
>     Should I do that? or that you already fixed the issue?
> 
> 
>     On Sun, Feb 17, 2013 at 12:06 AM, Richard Henderson <address@hidden
>     <mailto:address@hidden>> wrote:
> 
>         On 2013-02-15 03:12, Orr Dvory wrote:
> 
>             when debugging with qemu(user mode), qemu waits in infinite
>             loop to read
>             a signal from gdb (when it waits on breakpoint for example).
>             I added sleeps to reduce the cpu usage from 100% to about ~0%.
> 
> 
>         Wouldn't it be better to toggle the O_NONBLOCK state of the file
>         descriptor across this loop?
> 
> 
>         r~
> 
> 
> 


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