[Pixman] [PATCH] MIPS: DSPr2: Added over_n_8888_8888_ca and over_n_8888_0565_ca fast paths.

[Siarhei Siamashka]

On Mon, Mar 12, 2012 at 10:48 PM, Søren Sandmann <sandmann at cs.au.dk> wrote:
> Nemanja Lukic <nlukic at mips.com> writes:
>
>> [ # ]  backend                         test   min(s) median(s) stddev. count
>> [ # ]    image: pixman 0.25.3
>> [  0]    image            xfce4-terminal-a1  138.223  139.070   0.33%    6/6
>> [ # ]  image16: pixman 0.25.3
>> [  0]  image16            xfce4-terminal-a1  132.763  132.939   0.06%    5/6
>
> I'm curious why you chose this particular benchmark? The main path that
> xfce4-terminal-a1 exercises is over_n_1_8888 and add_1_1. As far as I
> can tell it doesn't actually hit the two fast paths that you added,
> which makes it suspicious where the speed-up is coming from.

I think it may actually depend on what fonts are installed in the
system and I vaguely remember encountering this at least once. If the
suitable bitmap fonts are missing, then the benchmark might fallback
to some other font and exercise different fast paths.

-- 
Best regards,
Siarhei Siamashka