DOS ain't dead - p7zip 4.65 for FreeDOS

p7zip 4.65 for FreeDOS | Ibiblio has 4.61 only (Announce)

posted by Rugxulo , Usono, 23.05.2009, 02:42

> > There aren't a lot of FreeDOS admins anymore, so while I did e-mail them
>
> Among others SF still says "Kernel - 2036test Last Update: May 21
> 2006" :-(

Well, 2038pre is the latest (unfinished?) "stable" kernel, so they can't update it yet (or won't, anyways).

> > guess none of them uses it very much (or at least not enough
> > to need 4.65 instead of 4.61).
>
> 4.65 is a stable version and the last one of the 4.xx line, 4.61 is just
> one of millions of irrelevant historical beta's ...

The changes between 4.61 and 4.65 were minor. Yes, sure, they should mirror to iBiblio, but it's not high priority.

> > I can only guess because of WATT-32 + GNU pth slowing it down (although
> > admittedly MSVC might be better than GCC these days, too).
>
> And DGJPP C file I/O library costs 10% ...

I don't think it's that bad. Usually it's pretty good performance. (Although WATT-32 is much slower than libsocket, but I don't think the latter works anymore ... at least not for my weak efforts.) But it depends on what the C library was compiled for. You could probably get better performance recompiling the C lib from CVS with latest GCC via -mtune=i686 (2.04 used GCC 3.3.2, I think, while 2.03p2 used 2.8.1, both almost definitely using the default -mtune=pentium, heh).

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Complete thread:

p7zip 4.65 for FreeDOS - Rugxulo, 16.04.2009, 17:48 (Announce)
- p7zip 4.65 for FreeDOS - rr, 16.04.2009, 21:54
  - p7zip 4.65 for FreeDOS - Rugxulo, 16.04.2009, 22:10
- p7zip 4.65 for FreeDOS | Ibiblio has 4.61 only - DOS386, 22.05.2009, 08:12
  - p7zip 4.65 for FreeDOS | Ibiblio has 4.61 only - Rugxulo, 23.05.2009, 02:26
    - p7zip 4.65 for FreeDOS | Ibiblio has 4.61 only - DOS386, 23.05.2009, 02:40
      - p7zip 4.65 for FreeDOS | Ibiblio has 4.61 only - Rugxulo, 23.05.2009, 02:42
        p7zip 4.65 for FreeDOS (performance) - Rugxulo, 26.05.2009, 21:46
      - p7zip 4.65 for FreeDOS | GCC 4.4.0 -O2 -mtune=i686 - Rugxulo, 29.05.2009, 02:41
        p7zip 4.65 for FreeDOS | GCC 4.4.0 -O2 -mtune=i686 - DOS386, 05.06.2009, 07:20
        p7zip 4.65 for FreeDOS | GCC 4.4.0 -O2 -mtune=i686 - Rugxulo, 05.06.2009, 07:47
        p7zip 4.65 for FreeDOS | GCC 4.4.0 -O2 -mtune=i686 - DOS386, 05.06.2009, 08:35
        p7zip 4.65 for FreeDOS | GCC 4.4.0 -O2 -mtune=i686 - Rugxulo, 11.06.2009, 04:13