DOS ain't dead

Compilation speed with GCC (Developers)

posted by sol, 20.06.2008, 17:36

> 1). "-O0" (or -O2 instead of -O3) [older -O2 is as fast as newer's -O0)

BAD. The time you're saving compiling is not worth all the time lost in an application that is now not optimized at all. Use -O2, not -O3, which may cause instability.

> 2). older version (e.g. 2.95.3 or 3.4.4) [old is always less standard
> compliant, e.g. no decent C99 support]

These compilers may also contain bugs, while rare.

> 4). run without too many background services, processes, etc. (pure DOS?

Multitasking OSes are better at compiling.

> 15). DOSBox (not optimal): turn up frameskip very high
> - don't need it when all you're using is cmdline apps !
> - you need multi-Ghz in order to emulate a 486, so this is quite
> slow!

BAD. Avoid compiling in emulators, especially buggy ones :p

> 18). use MinGW's "make -j2" under Win32 (but somewhat incompatible syntax

This is partially what I was referring to with my response to #4.

Complete thread:

• Compilation speed with GCC - Rugxulo, 20.06.2008, 00:17 (Developers)
  • Compilation speed with GCC - DOS386, 20.06.2008, 09:38
    • Compilation speed with GCC - RayeR, 20.06.2008, 12:34
      • Compilation speed with GCC - Rugxulo, 20.06.2008, 21:23
        • Compilation speed with GCC - Rugxulo, 21.06.2008, 01:04
          • Compilation speed with GCC - Japheth, 21.06.2008, 09:06
  • Compilation speed with GCC - sol, 20.06.2008, 17:36
    • Compilation speed with GCC - Rugxulo, 20.06.2008, 21:28
  • Compilation speed with GCC - Rugxulo, 21.06.2008, 01:09
    • Compilation speed with GCC - sol, 21.06.2008, 01:22
      • Compilation speed with GCC - Rugxulo, 21.06.2008, 07:44
      • Compilation speed with GCC - marcov, 21.06.2008, 14:07
  • Compilation speed with GCC - marcov, 21.06.2008, 14:03
  • Compilation speed with GCC - marcov, 21.06.2008, 14:10
    • Compilation speed with GCC - Rugxulo, 22.06.2008, 03:16
      • Compilation speed with GCC - marcov, 22.06.2008, 11:39
        • Compilation speed with GCC - Rugxulo, 24.06.2008, 01:29
          • Compilation speed with GCC - sol, 24.06.2008, 01:42
          • Compilation speed with GCC - Rugxulo, 24.06.2008, 03:34
          • Compilation speed with GCC - marcov, 24.06.2008, 09:27
  • Compilation speed with GCC - marcov, 21.06.2008, 14:13
    • Compilation speed with GCC - Rugxulo, 22.06.2008, 03:06
      • Compilation speed with GCC - marcov, 22.06.2008, 11:46
        • Compilation speed with GCC - Rugxulo, 06.07.2008, 17:18
          • Compilation speed with GCC - marcov, 09.07.2008, 18:11
  • Compilation speed with GCC - Rugxulo, 09.09.2008, 22:16