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Re: C++ compile time (again)
- From: Loren James Rittle <rittle at latour dot rsch dot comm dot mot dot com>
- To: gcc at gcc dot gnu dot org
- Cc: bangerth at ices dot utexas dot edu
- Date: Fri, 13 Jun 2003 18:09:01 -0500 (CDT)
- Subject: Re: C++ compile time (again)
- Organization: Networks and Infrastructure Lab (IL02/2240), Motorola Labs
In article <200306130918.03390.bangerth@ices.utexas.edu> you write:
> It's C++-compile-time-regression-rant time again. Compile times for a
> complete build of the deal.II library on a PIII 800 MHz:
>
> gcc2.95 : 46 min
> mainline: 89 min
> tree-ssa: 118 min
>
> The last two numbers are generated with --enable-checking, but apart
> from that I don't think further comments are necessary. [...]
--enable-checking can add a lot of overhead. Please compare
apples-to-apples; not a raisin (2.95 without --enable-checking) to a
grape (anything later with --enable-checking). If you are going to
rant mainly about compiler slow down, then it is only fair to do so.
Regards,
Loren