Re: [Mingw-users] Gcc speedup proposal

[Mikael A. <mik...@te...>]

Hi !

I second that, precompiled headers has a huge impact on speed, take a look
at MS C++ compiler, I have an application that I compile on both Windows and
Linux (same box), the VC++ version takes 18 seconds to make a complete
build, same thing with gcc (2.96 that is) takes 4 minutes, if I turn of
precompiled headers in the VC++ build, the time goes up to 2 minutes and 12
seconds.

Mikael

----- Original Message -----
From: "Danny Smith" <dan...@ya...>
To: "Paul Garceau" <pga...@my...>; <min...@so...>
Sent: Tuesday, February 05, 2002 4:55 AM
Subject: Re: [Mingw-users] Gcc speedup proposal


> --- Paul Garceau <pga...@my...> wrote: >
> >
> > ----- Original Message -----
> > From: Stephen M.Webb <ste...@cr...>
> > Date: Monday, February 4, 2002 6:08 am
> > Subject: Re: [Mingw-users] Gcc speedup proposal
> >
> > > On February 2, 2002 01:36 pm, Phillip Susi wrote:
> > > >
> > > > Has anyone tried to do this?  What do you think of the idea?
> > >
> > > The preprocessor in GCC 3.0 is integrated with the compiler (as
> > > opposed
> > > to a separate executable).
> >
> >    Not sure I understand what you are proposing.  Are you suggesting
> > that if we add cpp as part and parcel of gcc that mingw-gcc will go
> > faster?
> >
> >    Can you clarify?
>
>
> With GCC 3.0 and above the preprocessor is built into cc1.exe.
cc1plus.exe,
> etc, so that there is no piping  through  standalone preprocessor.  That
> part of the speed-up has been done.   There have been significant
> improvements in preprocessing speed between 3.0 release and current CVS.
>
> The cpp preprocessor is still available as a standalone app if you want
it.
>
> I really doubt that integrating gas or ld into gcc would speed things up
> that much.  Plus it would mean that you would be stuck with whatever
> version of binutils that was current when gcc was built.
>
> What would speed up thing (especially in C++) would be precompiled headers
> (or a new box).
>
> Danny
>
>
> http://greetings.yahoo.com.au - Yahoo! Greetings
> - Send your Valentines love online.
>
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