Profiler for g++

This is a discussion on Profiler for g++ within the Linux Programming forums, part of the Platform Specific Boards category; Does anyone have any recommendations for a free profiler for code generated by g++? I searched google for g++ and ...

  1. #1
    geek SilentStrike's Avatar
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    Profiler for g++

    Does anyone have any recommendations for a free profiler for code generated by g++? I searched google for g++ and profiler, but I didn't come up with anything.
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  2. #2
    Fingerstyle Guitarist taylorguitarman's Avatar
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    Have you tried the GNU one yet? You probably even have it already.
    http://www.gnu.org/manual/gprof-2.9....gprof_toc.html

  3. #3
    geek SilentStrike's Avatar
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    I tried it, but it's weird. It doesn't work for my game. I compile it with the -pg flag and then run it, but instead of the game working like normal, it's just all black. The profiler output is obviously erroroneoss as well, the first few lines...

    Code:
    Flat profile:
    
    Each sample counts as 0.01 seconds.
      %   cumulative   self              self     total
     time   seconds   seconds    calls  us/call  us/call  name
     33.33      0.01     0.01      902    11.09    11.09  _Rb_tree<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >, pair<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > const, SDL_Surface *>, _Select1st<pair<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > const, SDL_Surface *> >, less<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > >, allocator<SDL_Surface *> >::end(void)
     33.33      0.02     0.01      321    31.15    31.15  basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::replace(unsigned int, unsigned int, char const *, unsigned int)
     33.33      0.03     0.01       83   120.48   120.48  _Rb_tree<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >, pair<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > const, Parse::ParseAction *>, _Select1st<pair<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > const, Parse::ParseAction *> >, less<basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > >, allocator<Parse::ParseAction *> >::find(basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> > const &)
      0.00      0.03     0.00   103503     0.00     0.00  basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::rep(void) const
      0.00      0.03     0.00    37913     0.00     0.00  Util::Matrix<Game::GameMap::MapTile *>::numCols(void) const
      0.00      0.03     0.00    30129     0.00     0.00  basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::length(void) const
      0.00      0.03     0.00    29801     0.00     0.00  basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::Rep::data(void)
      0.00      0.03     0.00    18840     0.00     0.00  Util::Matrix<Game::GameMap::MapTile *>::operator()(int, int)
      0.00      0.03     0.00    17762     0.00     0.00  basic_string<char, string_char_traits<char>, __default_alloc_template<true, 0> >::data(void) const
      0.00      0.03     0.00    17408     0.00     0.00  Game::Flame::drawAt(SDL_Surface *, SDL_Rect *)
      0.00      0.03     0.00    15640     0.00     0.00  Graphics::SingleFrameImage::drawAt(SDL_Surface *, SDL_Rect *)
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
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  4. #4
    Fingerstyle Guitarist taylorguitarman's Avatar
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    Are you looking for something more like CPU monitors and stuff where you can see the realtime stats? Perhaps just build a small class to output what you need to the screen, like FPS and stuff.
    If a tree falls in the forest, and no one is around to see it, do the other trees make fun of it?

  5. #5
    geek SilentStrike's Avatar
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    I was looking for a profiler, one that shows the time spent in each function, etc, but using gprof and the -pg flag makes the program not work.
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
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  6. #6
    geek SilentStrike's Avatar
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    Same black screen odd behavior with the profiler from MSVC, guess I gotta start hunting for memory errors .
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
    Read my livejournal

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