[Dev] [SDK/Emulator] display invalidating improvement

Stanislav Vorobiov s.vorobiov at samsung.com
Tue Apr 15 12:53:48 GMT 2014


Hi, GiWoong

I've notice one small problem with new display invalidate logic. It happens only on windows with
nVidia GPUs. When I drag some other window over emulator (i.e. obscure emulator) the emulator
doesn't automatically get redrawn, only on actual content update.

Can you check this please, thanks!

On 04/14/2014 02:59 PM, 김기웅 wrote:
> Dear all,
> 
> I've submitted a patch to improve Tizen emulator performance.
> 
> Check this out.
> 
> https://review.tizen.org/gerrit/#/c/19484/
> 
>  
> 
> It is a dirty checking for emulator display base on VIGS.
> 
> This Qemu patch brings more efficiency at just idle screen moment.
> 
> Now, Emulator does not need to high cost for framebuffer drawing any more at that time.
> 
> Display will be stopped updating when it has not any changes.
> 
> I am attaching the simple performance testing result(host %cpu, coremark).
> 
>  
> 
> Stanislav Vorobiov(s.vorobiov at samsung.com <mailto:s.vorobiov at samsung.com>) much helped out this work.
> 
> And we tested emulator many times on all supported host platforms.
> 
> It works fine.
> 
> So, I am going to merge this commit to public Qemu git repository.
> 
>  
> 
> Please contact me if you have any problems or questions.
> 
> Thank you.
> 
>  
> 
>  
> 



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