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Re: Possible store motion tweak
- From: Roger Sayle <roger at eyesopen dot com>
- To: Richard Sandiford <rsandifo at redhat dot com>
- Cc: law at redhat dot com, <gcc-patches at gcc dot gnu dot org>
- Date: Sat, 20 Mar 2004 06:26:40 -0700 (MST)
- Subject: Re: Possible store motion tweak
On Sat, 20 Mar 2004, Richard Sandiford wrote:
> OK, I bootstrapped & regression tested on i686-pc-linux-gnu and
> alpha-linux-gnu. (powerpc was suggested, but I don't have access
> to a suitable box.)
> I tried running SPEC on a Pentium III box and got the results below.
> Not sure how meaningful they are. Although I tried to quieten the
> machine as much as I could (by paring down the number of system
> services, etc.), I still had to keep the network stuff running.
> Do the results look OK? Is the patch good to go?
These results look fine. A marginal improvement which is within SPEC's
noise, but most importantly no catastrophic performance regressions.
Knowing how noisy SPEC is I'd still be happy if it even dropped a point
or two, its dropping five or more that I was concerned about.
Patch approved! Thanks.