Subject: Re: PC164 memory accesses slow?
To: None <jc@joerch.org, thorpej@nas.nasa.gov>
From: Ross Harvey <ross@ghs.com>
List: port-alpha
Date: 07/20/1999 14:20:24
On Tue, 20 Jul 1999 18:51:57 +0200 (MET DST)
Joerg Czeranski <jc@joerch.org> wrote:
> I ran a mildly memory intensive integer benchmark (Ford/Fulkerson
> network flow optimization) on a PC164, and it took 50.3s with
> NetBSD-1.3.3 and 48.4s with DU4.0E, same assembler source, but assembled
> and linked on each target OS.
I would be interested in running it as well. Did you profile
this program on both systems? I wonder if a library call could be
a factor.
Are these results consistently reproducible? I suspect DU4.0 will be
using page coloring...
Also, how big is this binary image? We don't at the moment deal with
a certain ELF performance problem that happens in very large programs.
ross.harvey@computer.org