Message-ID: <000d01c22f88$f6616170$0100a8c0@p4>
From: "Andrew Cottrell" <acottrel AT ihug DOT com DOT au>
To: <djgpp-workers AT delorie DOT com>, "Richard Dawe" <rich AT phekda DOT freeserve DOT co DOT uk>
References: <Pine DOT SUN DOT 3 DOT 91 DOT 1020617191254 DOT 11418A-100000 AT is> <3D389A5F DOT D9813428 AT phekda DOT freeserve DOT co DOT uk>
Subject: Re: DJGPP 2.04 performance & size
Date: Sat, 20 Jul 2002 11:00:50 +1000
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Reply-To: djgpp-workers AT delorie DOT com

> > On Mon, 17 Jun 2002 sandmann AT clio DOT rice DOT edu wrote:
> >
> > > > In other words, does most of the difference come from globbing
(which
> > > > would point to `glob' and `findfirst') or from `stat' (which
probably
> > > > means we are paying for the symlink support)?
..SNIP..

There were allot of changes in stat and lstat becuase of bugs in 2K/XP.  The
timing may be dependant on the OS you are using, I would expect it to run
slower on 2K/XP due to the workarrounds that are needed. There are also
other cases where 2K/XP will take a penalty hit because of the bugs in the
low level int 21 api.

There may be ways to optimise the code in stat and lstat, but when the code
was originally modified it was done so that stat/lstat were backward
compatible and also worked on 2K/XP.

> Fileutils 4.1 against 2.03:
>
> real    0m50.700s
> user    1m41.429s
> sys     0m0.000s
>
> Fileutils 4.1 against HEAD:
>
> real    0m59.650s
> user    1m59.341s
> sys     0m0.000s
..SNIP..

What OS were the tests produced on?

Hope this helps.

Andrew