Changes between Version 2 and Version 3 of dev/optim/logbook


Ignore:
Timestamp:
Sep 2, 2011, 1:43:28 PM (8 years ago)
Author:
sam
Comment:

layout

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  • dev/optim/logbook

    v2 v3  
    55== 2011/09/02 ==
    66
    7 Started importing Ryan Sammartino's PS3 trigonometry library in the core ([885] [886] and [888]).
    8 
    9  * do the Taylor series on `x / π` instead of `x` ([890]): results in a measurable 2% speed increase in `sin()` (ppu-lv2-g++)
    10  * do the Taylor series in two steps, for better pipelining at the cost of one extra multiplication ([891]): a notable 11% speed increase in `sin()` (ppu-lv2-g++)
     7 * [885] [886] [888] Started importing Ryan Sammartino's PS3 trigonometry library in the core ().
     8 * [890] Do the Taylor series on `x / π` instead of `x`: results in a measurable 2% speed increase in `sin()` (ppu-lv2-g++)
     9 * [891] Do the Taylor series in two steps, for better pipelining at the cost of one extra multiplication: a notable 11% speed increase in `sin()` (ppu-lv2-g++)