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. > Jan > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (GNU/Linux) > Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org > > iD8DBQFGL8Hon11XseNj94gRAhE0AJ0Zx1YVWlNUNNgyspeaLFaJ8tZZJACfd3rX > VaOfHjiTL23tAVXzXDm2490= > =enXy > -----END PGP SIGNATURE----- > _______________________________________________ > osg-users mailing list > [email protected] > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ > _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
