Marcelo Gardini do Amaral wrote:
On Sat, Nov 18, 2006 at 02:52:33PM +0100, O. Hartmann wrote:
These results looks very puzzling to me.
As far as I know, multithreading and/or multiprocessors should perform
better anyway than a single threaded application within other
applications on an UP box. Strange results ...And more strange than this
is the result taken from the FBSD 4.11 box! Is there an explanation why
FreeBSD performs so bad beyond 4.X and on SMP boxes? Please show me
threads ...
The results were discussed in the following threads:
http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011748.html
http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011756.html
http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011767.html
http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011771.html
...
Thank you very much for the search. To be honest, it looks very
disappointing to me. At this moment I regret not having more substantle
opportunities to test, but with the end of this year or with the
beginning of next year my department starts using Opteron blade systems
for our research purposes and I may have the chance to test, too (SUN
X4100 or SUN X1200 M2 are discussed, but I'm not sure).
My hope is still that FreeBSD evolves to be worth being used in science,
especially for clustering and high performance computing. It seems that
Linux has made it due its support by many Compiler vendors (Pathscale,
Intel) and, obviously, its much better network und SMP performance.
Regards,
Oliver
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