Re: [Mingw-users] malloc slow?

[Luke D. <cod...@ho...>]

The difference is pretty small, and IMHO such a test program won't give =
any useful indication of how real programs will perform. MinGW also uses =
the MSVC malloc() in msvcrt.dll.

Luke

  ----- Original Message -----=20
  From: Marco Vignati=20
  To: min...@li...=20
  Sent: Monday, May 30, 2005 11:17 PM
  Subject: [Mingw-users] malloc slow?


  Hi all,

  I compiled a malloc test code with MinGW-3.10.0-1 / gcc-3.2.3 and with
  MS Visual C++ 6.

  With MinGW/gcc time gives:

  real    0m3.718s
  user   0m0.015s
  sys    0m0.000s

  and With MS Visual C++:

  real    0m2.094s
  user   0m0.015s
  sys    0m0.000s

  The source code of the test program is:

  #include <stdlib.h>
  int main()
  {
    int i,*a;
    for(i=3D0;i<20000000;i++){
      a=3Dmalloc(sizeof(int));
      free(a);
    }
    return 0;
  }

  I Compiled it with:

  gcc -funroll-loops -O3 -o t_malloc t_malloc.c

  and in Visual C++ with the "Release" configuration.

  Am I omissing any optimization option with gcc??

  Thanks in advance

  Marco