[Pixman] 0.29.2

Søren Sandmann sandmann at cs.au.dk
Wed Jan 30 11:54:27 PST 2013


Siarhei Siamashka <siarhei.siamashka at gmail.com> writes:

> I would also like to get the new ARMv6 optimizations from Ben Avison
> in. There is basically nothing terribly wrong with them from my point
> of view. If anybody else could also take a look at this code, test it
> or provide some comments, that would be really appreciated.

These made it into 0.29.2, so the one comment I had is now moot: I would
have preferred the first patch to be split into one that just renamed
pixman-simd-asm.S and one that added the header file.

But I wanted to also mention that this way of reporting results:

    add_8_8
    
        Before          After
        Mean   StdDev   Mean   StdDev  Confidence  Change
    L1  62.1   0.2      543.4  12.4    100.0%      +774.9%
    L2  38.7   0.4      116.8  1.7     100.0%      +201.8%
    M   40.0   0.1      110.1  0.5     100.0%      +175.3%
    HT  30.9   0.2      43.4   0.5     100.0%      +40.4%
    VT  30.6   0.3      39.2   0.5     100.0%      +28.0%
    R   21.3   0.2      35.4   0.4     100.0%      +66.6%
    RT  8.6    0.2      10.2   0.3     100.0%      +19.4%

is much better than what we have now. It would definitely be useful if
we had a way to convert the output of lowlevel-blt-bench.c into this
format.


Søren


More information about the Pixman mailing list