[Pixman] [PATCH] MIPS: DSPr2: Added over_n_8888_8888_ca and over_n_8888_0565_ca fast paths.
siarhei.siamashka at gmail.com
Mon Mar 12 14:05:00 PDT 2012
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.
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