Re: Intel C/C++ Compiler Tests (fwd)

> > On 3/22/06 5:56 AM, "Spiegelberg, Greg" <gspiegelberg@cranel.com> wrote:
> >
> > > Has anyone tested PostgreSQL 8.1.x compiled with Intel's Linux C/C++
> > > compiler?
> >
> > We used to compile 8.0 with icc and 7.x before that.  We found very good
> > performance gains for Intel P4 architecture processors and some gains for
> > AMD Athlon.
> >
> > Lately, the gcc compilers have caught up with icc on pipelining
> > optimizations and they generate better code for Opteron than icc, so we
> > found that icc was significantly slower than gcc on Opteron and no
> > different
> > on P4/Xeon.
> >
> > Maybe things have changed in newer versions of icc, the last tests I did
> > were about 1 year ago.

EnterpriseDB is seeing the same thing, that gcc4 now has the same
performance as icc, and is more flexible.

--
  Bruce Momjian   http://candle.pha.pa.us

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