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Subject: Re: [gentoo-dev] KDE speed - wow
From: "Preston A. Elder" <prez@goth.net>
To: gentoo-dev@gentoo.org
In-Reply-To: <20020408171337.1c553823.sebastian@werner-productions.de>
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Date: 08 Apr 2002 13:48:10 -0400
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A word of warning. The -funroll-loops optimization CAN cause problems
with GCC 3.0.x. I used to use all of the below optimizations myself,
until I found -funroll-loops was more trouble than its worth (I had
several programs I actively debugged, only to find it was an
optimization error, and removing that particular optimization fixed the
problem -- the code itself looked fine).
Just a friendly note. I dont believe theres a problem with
-funroll-loops on gcc 2.95.x.
On Mon, 2002-04-08 at 11:13, Sebastian Werner wrote:
> Hey,
>=20
> i compiled a fresh kde 3 desktop and all I could say...
>=20
> wow what a speed!!! Never dream about KDE could have this speed and eyeca=
ndynes.
>=20
> I use gcc-3.0.4 with the following cflags:
> -march=3Di686 -O3 -pipe -fforce-addr -funroll-loops -fomit-frame-pointer =
-frerun-cse-after-loop -frerun-loop-opt -malign-functions=3D4
>=20
> the newest binutils (2.12.90.0.3) package with active combreloc=20
>=20
> and the default gentoo kernel with all it's speed enhancements... ;-)
>=20
> Sebastian
> _______________________________________________
> gentoo-dev mailing list
> gentoo-dev@gentoo.org
> http://lists.gentoo.org/mailman/listinfo/gentoo-dev
--=20
PreZ
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