Compilation time (was Re: GCC 3.3)

[Phil Edwards]

On Thu, May 01, 2003 at 08:20:12PM +0200, Scott Wheeler wrote:
> On Wednesday 30 April 2003 20:45, Phil Edwards wrote:
> >     compiling Qt without -ftime-report takes about an hour (and about
> >     thrice that time with -ftime-report) on my pentium 4 (2GHz) box
> >     running a GNU/Linux system.
> > 
> > Five hours falls into the hellishly long category.
> 
> Well, that's four hours (1 + 3) not five, but yes that's quite a while.

Five builds.  Each takes one hour.  Five hours.


> However, it really shouldn't take that long.  Qt specifically is built as 
> (primarily) one shared library, plus some tools and plugins.  If you just 
> build that shared library on my machine (1.4 GHz Athlon, Linux) it takes just 
> under 11 minutes of CPU time for a "normal" build of just that shared 
> library.  That roughly doubles to compile all of Qt (tools and plugins, but 
> not examples).

Okay, 11 minutes per build is certainly feasible, so that core library
might be a good test.  I'll add it to the list of possibilities.


Thanks!
Phil

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