[glob2-devel] CPU usage et profiling:

[Luc-Olivier de Charrière]

Le CPU est assez problématique, j'ai finalement du changer le sytème 
d'allocation des unités aux batiments par un système sous-optimal.
Même avec mon PC récent, les meilleures directives de compilation, et 
des heures d'optimisations à la main, j'avais un jeu injouable.
Maintenant, j'ai des stats plus correctes, même sur une carte 256x256, 
et plus de 500 unités:

cpu usage graph:
100.0 % | *******
98.5 % |
95.0 % |
93.5 % | *
90.0 % | *
88.5 % | **
85.0 % |
83.5 % | *
80.0 % | ***
78.5 % | **
75.0 % | **
73.5 % | *
70.0 % | *
68.5 % | *****
65.0 % | *********
63.5 % | ****************
60.0 % | *******************
58.5 % | ******************
55.0 % | **********
53.5 % | ***


Each sample counts as 0.01 seconds.
 %   cumulative   self              self     total          
time   seconds   seconds    calls  ms/call  ms/call  name   

21.25     29.73    29.73  5010368     0.01     0.01  
SDLDrawableSurface::drawFilledRect(int, int, int, int, unsigned char, 
unsigned char, unsigned char, unsigned char)
12.11     46.68    16.95     1298    13.06    13.06  
Map::updateGlobalGradient(Building*, bool)
11.31     62.50    15.82                             
Map::cursorToBuildingPos(int, int, int, int, int*, int*, int, int)
 8.83     74.86    12.36    24867     0.50     0.65  
Map::updateGlobalGradient(unsigned char*)
 7.24     84.99    10.13 1073188594     0.00     0.00  
SDLDrawableSurface::setRes(int, int, int, unsigned int)
 5.91     93.26     8.27   819797     0.01     0.01  
SDLSprite::draw(SDL_Surface*, SDL_Rect const*, int, int, int)
 5.50    100.96     7.70   226186     0.03     0.06  
SDLDrawableSurface::drawLine(int, int, int, int, unsigned char, unsigned 
char, unsigned char, unsigned char)
 4.14    106.75     5.79    24158     0.24     0.24  
Game::renderMiniMap(int, bool)
 3.60    111.79     5.04     3485     1.45     1.45  
Map::updateLocalGradient(Building*, bool)
 2.76    115.65     3.86    24867     0.16     0.16  
Map::ressourceAviable(int, int, bool, int, int, int*, int*, int*, 
unsigned char)
 2.53    119.19     3.54                             
SDLDrawableSurface::drawCircle(int, int, int, unsigned char, unsigned 
char, unsigned char, unsigned char)
 2.34    122.47     3.28                             
Map::buildingPosToCursor(int, int, int, int, int*, int*, int, int)
 1.32    124.32     1.85    24723     0.07     1.86  Game::drawMap(int, 
int, int, int, int, int, int, bool, bool, bool, bool)
 1.21    126.01     1.69                             
SDLDrawableSurface::setClipRect(int, int, int, int)
 0.86    127.21     1.20                             
SDLDrawableSurface::setAlpha(bool, unsigned char)
 0.65    128.12     0.91                             
TTF_RenderUNICODE_Blended
 0.59    128.95     0.83                             
SDLDrawableSurface::setClipRect()
 0.53    129.69     0.74 33673182     0.00     0.00  
SDLSprite::loadFrame(SDL_RWops*, SDL_RWops*, SDL_RWops*, SDL_RWops*)
 0.51    130.40     0.71                             Load_Glyph

On remarquera donc que les graphismes on repris de dessus!
Steph, tu comprends pourquoi "Map::cursorToBuildingPos(int, int, int, 
int, int*, int*, int, int)" prends autant de temps ?