Question about pixman,x11perf and xserver

杨帅 yangshuai126 at 126.com
Mon Dec 5 22:25:27 PST 2011


hi,Peter

Thanks for your reply~

Now I got the direction!

I will try to optimize the xserver/fb and use the cairo-perf-trace for testing


Best Regards,
David





在 2011-12-05 23:47:57,"Peter Harris" <pharris at opentext.com> 写道:
>On 2011-12-05 06:39, 杨帅 wrote:
>> 
>> 1.I recompile the pixman with enable-neon,but when I use the x11perf for
>> testing ,I can‘t see the significant difference between the pixman with
>> neon and pixman without neon.That's why?
>
>x11perf is an older test suite, and mostly only tests core graphics.
>Only x11perf -compwinwin and -comppixwin will make heavy use of pixman
>(along with the new-style text tests, a*text, aa*text and rgb*text to
>some extent).
>
>The good news is, most modern applications draw using those requests.
>
>> 2.xserver use which drawing library to resizing the window,scroll the
>> text window ,and so on?
>
>Depends on the application. Either pixman, or the fb directory of the
>server.
>
>> 3.which library  excepts pixman could I optimize using neon to improve
>> the performance of xserver?
>
>xserver/fb
>
>But first, make sure you're working on something that matters to your
>application. In particular, cairo-perf-trace is probably more relevant
>these days than x11perf. See
>http://cgit.freedesktop.org/cairo-traces/tree/README
>
>Peter Harris
>-- 
>               Open Text Connectivity Solutions Group
>Peter Harris                    http://connectivity.opentext.com/
>Research and Development        Phone: +1 905 762 6001
>pharris at opentext.com            Toll Free: 1 877 359 4866
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