[Pixman] [PATCH 3/3] MIPS: DSPr2: Added more fast-paths for OVER operation:

[Søren Sandmann]

Nemanja Lukic <nlukic at mips.com> writes:

> From: Nemanja Lukic <nemanja.lukic at rt-rk.com>
>
> Performance numbers before/after on MIPS-74kc @ 1GHz:
>
> lowlevel-blt-bench results
>
> Referent (before):
>         over_n_0565 =  L1:  12.04  L2:  21.45  M: 18.50 ( 24.55%)  HT:  6.93  VT:  6.45  R:  6.38  RT:  2.16 (  22Kops/s)

This one:

>         over_n_8888 =  L1:  93.76  L2:  85.96  M: 24.41 ( 64.78%)  HT:  8.93  VT:  8.08  R:  7.99  RT:  2.54 (  25Kops/s)

>         over_n_8888 =  L1:  55.31  L2:  49.07  M: 28.60 ( 75.93%)  HT: 23.99  VT: 22.95  R: 22.34  RT: 12.85 (  61Kops/s)

looks like a performance regression for L1 and L2?


Søren