[Sugar-devel] SVG performance

[Walter Bender]

And in the case of TA, I currently render about 30 svg files in the
initialization phase, hence the long delay. I'll look into how I can
background some of this.

-walter

On Tue, Dec 9, 2008 at 9:11 AM, Tomeu Vizoso <tomeu at sugarlabs.org> wrote:
> On Tue, Dec 9, 2008 at 3:04 PM,  <pgf at laptop.org> wrote:
>> bernie wrote:
>>  > Jim Gettys wrote:
>>  > > IIRC, librsvg is it.
>>  > >
>>  > > A bit more profiling to get through the tangled web of dependencies is
>>  > > probably in order.
>>  >
>>  > To exclude the noise coming from  Python and GDK, I tried timing again
>>  > with the command-line tool rsvg:
>>  >
>>  >   for i in *.svg; do echo $i; time rsvg $i $i.png; done
>>  >
>>  > This way I could not find any problematic svg file within the
>>  > turtleart repository.  The slowest ones render in <0.1 seconds.
>>
>> i'm not sure i'd agree that "<0.1 seconds" isn't problematic.  how
>> fast would the equivalent bitmap render?
>
> In order to not give a perception of slugginesh, all UI operations
> should take less than 0.2s.
>
> If one icon takes 0.05s, we can render 4 of them before starting to look slow.
>
> So we need to make those values much lower, or stop rendering icons
> during UI operations.
>
> Regards,
>
> Tomeu
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-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org