Current-Users archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: databases bombing

On Mon, Jan 12, 2009 at 10:12:52PM +0000, David Brownlee wrote:
> I have the fallback for 'core2' as 'pentium-m' which I think may be
> better for instruction scheduling, but omits the SSE3 support of
> 'nocona'. On balance I think 'nocona' is probably a better choice.
> Could you test cpuflags 1.34 (the issue with it not picking it up as
> core2 to start with should be resolved)

Yes, cpuflags-1.34 gives "-mfpmath=sse -msse3 -march=nocona".

Btw, according to the gcc(1) manpage, -mfpmath=sse is default on x64-64,
and -msse3 is included in -march=nonona.

But I think you're right that pentium-m + SSE3 could perhaps be a better
match for this CPU.


Home | Main Index | Thread Index | Old Index