DOS ain't dead

Compilation speed with GCC (Developers)

posted by sol, 24.06.2008, 01:42

> I've heard both "noatime" and "relatime" can help, but it seems to matter
> more what filesystem is in use (since Linux supports so many). However,
> that's something no one seems to agree upon (ext2? XFS? JFS? Reiser??).
> See

noatime helps on any file system that supports storing access times. That goes in general for file IO, not just for compiling.

It's because when you compile, you may be reading 1000 files -- each read will then involve a write, which is much more expensive than a read. This adds up; disabling all these writes saves a little bit of time and disk wear.

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