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Re: gcc and compiling speed
- From: Daniel Jacobowitz <drow at false dot org>
- To: Theo de Raadt <deraadt at cvs dot openbsd dot org>
- Cc: Andrew Pinski <pinskia at physics dot uc dot edu>, tech at openbsd dot org,Marc Espie <espie at quatramaran dot ens dot fr>,"gcc at gcc dot gnu dot org List" <gcc at gcc dot gnu dot org>
- Date: Sun, 29 Feb 2004 22:07:09 -0500
- Subject: Re: gcc and compiling speed
- References: <75E7D6EA-6B19-11D8-888A-000393A6D2F2@physics.uc.edu> <200403010259.i212xS6m023756@cvs.openbsd.org>
On Sun, Feb 29, 2004 at 07:59:28PM -0700, Theo de Raadt wrote:
> > Marc,
> > Now I know you have been asked before every time you bring up on the
> > GCC's mailing list about a set of preprocessed source for openbsd so
> > that the speed of GCC will improve.
>
> How will this improve the speed of gcc?
>
> Are pre-processed headers the way that gcc3 is going to recover
> the speed that it has lost?
I found pretty Andrew's request very confusingly worded (sorry
Andrew!), so let me rephrase it: preprocessed (-E, -save-temps) output
for specific test cases that have slowed down. This is what people ask
Marc for every time he reports slowdown numbers, and so far he hasn't
provided any.
Not that we're disputing that GCC has slowed down. But without
specific testcases that have regressed, it's hard to do anything about
it.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer