Hi Enrico, Could you provide a link to the code you used to perform these tests? i'd like to replicate the results for MSVC6, and then compare it with MSVC 7.1 and 8 (VS 2003 and VS 2005 Beta respectively). MSVC6 is a very old compiler (1997/98), and since the C++ compiler for MSVC 2003 (7.1) is available free of cost, that would be a way better compiler to target.
Thanks, Tanuj On 10/17/05, Enrico Migliore <[EMAIL PROTECTED]> wrote: > Hi, > > I did some tests in order to see which, among MSVC,GCC and DevCpp > compilers yield the code with the best speed performance. > > The test is a function that contains pure ANSI C code (no __fastcall or > similar) > and doesn't call any system call of the underlying OS. > > > MSVC GCC DevCpp > -------------------------------------------------------------------- > Arch Pentium Pentium Pentium > > OS Win2000 Linux (Knoppix) Win2000 > > Compiler 6.0 3.4 > 5.0 > version > > speed 13.4 sec 14.27 sec 14.61 sec > optimization > off > > speed 6.48 sec 0.9 sec > 1.43 sec > optimization > on > > command line cl /O2 main.c gcc -O3 main.c (*) > when optimiz. > on > -------------------------------------------------------------------- > > (*) I didn't write it down when I did the tests > > > Unless I'm doing something wrong with MSVC, it seems that > DevCpp and GCC are almost an order of magnitude faster than MSVC. > > > Enrico > > >
