Re: [glob2-devel] perfs

[Martin S Nyffenegger]

Ok,
profiling sur ma machine (ppc7400 1Go de Ram) réalisés avec Shikari
(Apple CHUD tools). Les mesures sont pris sur de cours intervals de
temps (10 sec environs) mais donnent une bonne idée...

Timing profile:
        58.1%   Map::updateGlobalGradient(unsigned char*)       Globulation2
        10.6%   BlitRGBtoRGBPixelAlpha  libSDL-1.2.0.dylib
        4.6%    SDLDrawableSurface::drawFilledRect(int, int, int,
int, unsigned char, unsigned char, unsigned char, unsigned char)
        Globulation2
        3.4%    Map::updateGradient(int, unsigned char, bool, bool)
        Globulation2
        3.1%    SDLSprite::draw(SDL_Surface*, SDL_Rect const*, int,
int, int)       Globulation2
        1.9%    SDL_FillRect    libSDL-1.2.0.dylib
        1.8%    IOTrySpinLock   IOKit
        1.1%    Game::renderMiniMap(int, bool)  Globulation2
        1.0%    rest_world_eh_r7r8      CoreGraphics
        0.9%    Map::getTerrain(int, int)       Globulation2
        0.8%    IOSpinUnlock    IOKit
        0.8%    Map::isWater(int, int)  Globulation2
        0.5%    windowByID      CoreGraphics
        0.4%    pthread_mutex_lock      libSystem.B.dylib
        0.4%    Map::isMapDiscovered(int, int, unsigned)        Globulation2

Branch Unit Stalls:
        25.1%   IOTrySpinLock   IOKit
        17.5%   rest_world_eh_r7r8      CoreGraphics
        7.1%    IOSpinUnlock    IOKit
        6.8%    Map::updateGradient(int, unsigned char, bool, bool)
        Globulation2
        3.5%    QZ_UnlockWindow libSDL-1.2.0.dylib
        2.5%    Map::isWater(int, int)  Globulation2
        2.4%    _gcc_bcmp       libSDL-1.2.0.dylib
        2.3%    Team::checkSum()        Globulation2
        2.0%    windowByID      CoreGraphics
        1.7%    pthread_mutex_lock      libSystem.B.dylib

Data Cache Misses:
        41.9%   Map::updateGlobalGradient(unsigned char*)       Globulation2
        11.9%   BlitRGBtoRGBPixelAlpha  libSDL-1.2.0.dylib
        11.8%   SDL_FillRect    libSDL-1.2.0.dylib
        9.0%    Map::updateGradient(int, unsigned char, bool, bool)
        Globulation2
        6.5%    SDLDrawableSurface::drawFilledRect(int, int, int,
int, unsigned char, unsigned char, unsigned char, unsigned char)
        Globulation2
        2.2%    Map::getAirUnit(int, int)       Globulation2
        1.5%    Map::getGroundUnit(int, int)    Globulation2
        1.1%    SDLSprite::draw(SDL_Surface*, SDL_Rect const*, int,
int, int)       Globulation2
        1.0%    Map::isMapDiscovered(int, int, unsigned)        Globulation2


Load Store Stalls:
        58.8%   Map::updateGlobalGradient(unsigned char*)       Globulation2
        7.7%    BlitRGBtoRGBPixelAlpha  libSDL-1.2.0.dylib
        7.4%    SDLDrawableSurface::drawFilledRect(int, int, int,
int, unsigned char, unsigned char, unsigned char, unsigned char)
        Globulation2
        5.0%    SDLSprite::draw(SDL_Surface*, SDL_Rect const*, int,
int, int)       Globulation2
        3.4%    Map::updateGradient(int, unsigned char, bool, bool)
        Globulation2
        1.9%    Game::renderMiniMap(int, bool)  Globulation2
        1.4%    Team::checkSum()        Globulation2
        1.3%    windowByID      CoreGraphics
        1.0%    Map::isWater(int, int)  Globulation2


--
----------------------------
Martin S. Nyffenegger
En pre-Floret
1126 Vaux sur Morges
VD   Suisse
Tel:021 801 30 07
EMail: address@hidden
ICQ No: 14096413
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