On Wed, 25 Apr 2007, Jeremy L. Moles wrote:
> On Wed, 2007-04-25 at 23:02 +0200, Jan Ciger wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > Donald Tidrow wrote:
> > > Which version is faster for most uses? I'm going to be installing a new
> > > version of Linux on my home machine, now that I've updated the hardware,
> > > but haven't decided whether to run an x86_64 version or the i586/i686 one.
> > > Has anyone done any comparisons between them, especially with regards to
> > > running OSG?
> > >
> >
> > We have done some tests running Blender and in fact the 64bit version
> > didn't have much of an advantage in performance. If you are not going to
> > use a lot of calculations with large numbers or need a lot of RAM, the
> > 64bit system will not bring you a whole lot of benefit, only problems
> > with some 32bit-only applications people like to have (e.g. Flash plugin
> > is 32bit only, Acrobat is 32bit only, etc.) Applications need to be
> > specifically optimized for 64bit code to really feel the benefit, not
> > only recompiled by 64bit gcc.
> >
> > You can see for yourself here:
> > http://www.eofw.org/bench/
> >
> > Comparable hardware scores very similarly, whether it is running 32 or
> > 64bit Linux system.
> >
> > Also, regarding OSG the 64bit system doesn't seem to have much benefit
> > (or bad impact for the matter). It behaves pretty much the same as my
> > 32bit machine and the performance is comparable.
>
> Having access to hundreds of new, modern "top of the line" laptops, I
> can also confirm this. We see little-to-no perceivable speed increase
> with 64bit systems+OSes, other than in applications like octave (MATLAB)
> or various encoding apps that are compiled to benefit from 64bit.
>
> As a matter of fact, we insist that any customer who wants 64bit ALSO
> dual-install the 32bit equivalent, just in case things go (and they
> often do) awry.
>
That's about what I figured - from what I've heard, if you don't need
more than 3GB/process it's not worth the extra hassles. I'll probably set
up a second partition with a Linux x86_64 distro on it just to mess around
with, but use a 32-bit version as my primary environment.
Don
---
In October 1997, three computer lab staffers
disappeared from the server room while debugging
a mysterious router problem.
One year later, their packet logs were found...
The Blair Switch Project
--------------------
| Don Tidrow |
| Vis-Sim Geek |
--------------------
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