LinuxQuestions.org
Latest LQ Deal: Latest LQ Deals
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 08-13-2004, 04:29 PM   #1
Entropius
LQ Newbie
 
Registered: Apr 2004
Posts: 29

Rep: Reputation: 15
Athlon 64 performance gain for custom FPU-intensive app?


As part of my university studies, I've written a physics modelling program (in C, compiled with gcc, running on Mandrake 10) that's FPU-intensive. Currently I'm running it on an Athlon XP 2400+, and would like it to go faster.

I'm pondering getting an Athlon 64 (3000 or 3200). I've seen plenty of benchmarks for the A64's, but all of them have been either fully 32-bit or 32-bit binaries running on a 64-bit OS.

Will I see much of a performance gain in my program if I get the A64, run a 64-bit Linux distro, and recompile my code using the 64-bit distro's gcc? I know that it'll be faster than the XP 2400+, but will I see any extra gain from running in "true" 64-bit mode with a program compiled specifically for it?
 
Old 08-14-2004, 08:52 PM   #2
Entropius
LQ Newbie
 
Registered: Apr 2004
Posts: 29

Original Poster
Rep: Reputation: 15
I know it's rude to *bump* posts, but since this is a rather obscure question it's possible it scrolled off the front page before anyone who could answer it dropped by.

So, an apologetic *bump*.
 
Old 08-15-2004, 05:30 AM   #3
crashmeister
Senior Member
 
Registered: Feb 2002
Distribution: t2 - trying to anyway
Posts: 2,541

Rep: Reputation: 47
The gcc compiler for AMD64 is pretty much a work in progress - you might want to have a look here http://www.anandtech.com/linux/showdoc.aspx?i=2163

There are some things that are even slower with a 64 bit environment.Of course the processor itself is a lot faster than the Athlon anyway but I doubt if anybody can tell you for sure what kind of gain you'll get with a specific programm that is only known to you ;-)
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
performance gain when dsl modem off jwgorman Linux - Newbie 0 07-06-2005 08:44 AM
Athlon xp 2004+ bad performance Doktor Prokt Linux - Hardware 11 05-22-2005 08:22 AM
Athlon 64 floating-point performance gain? Entropius Linux - Hardware 1 07-19-2004 05:37 AM
slackware 9.1 + athlon performance trollman Linux - Newbie 11 02-24-2004 10:38 AM
LFS performance gain? vonPulex Linux From Scratch 2 07-08-2003 01:11 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 04:29 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration