This is the mail archive of the
mailing list for the GCC project.
Re: compiling linux kernels with GCC 3.0
- To: pcarlini at unitus dot it
- Subject: Re: compiling linux kernels with GCC 3.0
- From: Joe Buck <jbuck at synopsys dot COM>
- Date: Wed, 10 Oct 2001 15:55:35 -0700 (PDT)
- Cc: mark at codesourcery dot com (Mark Mitchell), gcc at gcc dot gnu dot org
> Is it true that there is no real evidence of performance improvements on
No. There is real evidence of small performance improvements for C.
> If so, *why* in your (authoritative) opinion?
Rather, why isn't there evidence of more improvement? Because 3.0 was
a feature release for the most part; other goals took precedence.
However, 3.1 is intended to be a performance improvement; if the release
candidate is not a performance improvement over 3.0.x I will not give my
vote authorizing a release (and 3/4 of the SC have to give the goahead
for a release). We'd be better off in that case telling people to keep
using the older releases for longer.
(That doesn't guarantee that all codes will run better or compile faster,
just that on average 3.1 needs to be better).