On Thu, 14 Oct 1999, Ollivier Robert wrote:
> According to W Gerald Hicks:
> > Just curious what effect using the --enable-haifa flag for building
> > gcc-2.95.1/x86 would have so I did a comparison using the Dhrystone
> > benchmark from /usr/ports/benchmarks/bytebench.
>
> I think the Haifa scheduler is only really effective on pure RISC processors
> like the Alpha or PA-8000. I remember doing some tests with older versions of
> egcs and not seeing any significant changes...
According to my vague recollectiosn from the early times of egcs when
faifa was integrated, etc. part of the problem is that to have haifa be
really effective, all old kluges need be removed...
Something that back then happened/had happened only to a few cpus, like
HP-PA. Not sure what may have happened since, but I doubt somebody has
redone x86 code generation and fully integrated haifa ins scheduler.
> --
> Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- [EMAIL PROTECTED]
> FreeBSD keltia.freenix.fr 4.0-CURRENT #74: Thu Sep 9 00:20:51 CEST 1999
>
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