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Date:      Wed, 20 Oct 1999 10:54:46 +0100
From:      "Joe Pepin" <jpepin@lucent.com>
To:        "Sheldon Hearn" <sheldonh@uunet.co.za>
Cc:        <freebsd-questions@FreeBSD.ORG>
Subject:   RE: Optimising XFree86 
Message-ID:  <NDBBJMHAKKLLMBFNMKDDCEPECHAA.jpepin@lucent.com>
In-Reply-To: <26206.940428583@axl.noc.iafrica.com>

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Yeah, that is pretty odd.  I have a customized galaxy.c (from
xlock) that really pushes X (on my machine anyway) to it's
limit.  I was getting really choppy performance with more than
1200 stars- but once I compiled X with egcs it smoothed right
up.  Could I have possibly un-jammed something in a config file
somewhere?  I didn't change anything else except to rebuild,
and the difference was considerable.  It's not an objective
thing, but I would say that my xlock mode ran ~15% faster after
the compile, and I was able to go up to 1600 stars before seeing
choppiness.  I was just messing around- I'm a dabbler.  The
reason I'm asking, is I'd like to squeeze as much performance
as possible out of this box, and this could prove to be a learning
experience.  I'd like to know why it improved so much??  Maybe
I could twiddle it a bit more and get 2000 stars...

TIA,

Joe Pepin
~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=
Joe Pepin
Network Systems Engineer
Security Practice
Lucent Technologies / Bell Labs Innovations
NetCare Professional Services Division
“The Knowledge Behind the Network”
The views/opinions expressed above are not
necessarily those of my employer, but they
probably should be.
~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=



-----Original Message-----
From: Sheldon Hearn [mailto:sheldonh@axl.noc.iafrica.com]On Behalf Of
Sheldon Hearn
Sent: Wednesday, October 20, 1999 3:10 PM
To: jpepin@lucent.com
Cc: E TiE; freebsd-questions@FreeBSD.ORG
Subject: Re: Optimising XFree86




On Wed, 20 Oct 1999 10:00:50 +0100, "Joe Pepin" wrote:

> I found that building X increased my performance noticeably over the
> pre-compiled package.  I compiled it with CC=3D/usr/local/bin/egcs with -=
> O2.

That's odd, because the package is compiled with the same optimization.

Ciao,
Sheldon.



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