On Mon, Oct 23, 2006 at 05:23:27PM -0400, Tom Lane wrote:
> Mark Kirkwood <markir@paradise.net.nz> writes:
> > Right - I think the regression is caused by libc and kernel being built
> > with gcc 3.4.6 and the test program being built with gcc 4.1.2.
>
> Why do you think that? The performance of the CRC loop shouldn't depend
> at all on either libc or the kernel, because they're not invoked inside
> the loop.
>
I can believe that not re-building GCC 4.1.x with the 4.1.x compiler
could result in it not taking full advantage of new features and functions.
Ken