Daniel Berlin wrote:
On Thu, 2005-06-30 at 17:17 -0700, James E Wilson wrote:
Their web pages primarily talk about the 64-bit performance on AMD
systems. Maybe they aren't well tuned for 32-bit performance and/or
Intel parts. Anyways, from what Daniel Berlin mentioned, it may be that
the tree-ssa stuff in gcc4.x has negated much of their earlier advantage.
I would not be surprised if they kick the crap out of us when it comes
to numerical fortran or something, but for regular c code, i'd not
expect more than 10-20% difference, max.
On an FX-57, EKOPath is close to icc for SPECint2000:
http://www.spec.org/osg/cpu2000/results/res2005q2/cpu2000-20050613-04264.html
http://www.spec.org/osg/cpu2000/results/res2005q2/cpu2000-20050613-04262.html
icc on WinXP SPECint2000 = 1970
pathcc on Linux SPECint2000 = 1929
Do you have a SPECint2000 breakdown for gcc tree-ssa on Linux?
The dev's summit mentions SPECint2000 results, but I didn't find what
I was looking for.
http://www.gccsummit.org/2005/2005-GCC-Summit-Proceedings.pdf
--
Regards, Marc
