Subject: Re: Thread benchmarks, round 2
To: None <email@example.com>
From: Christos Zoulas <firstname.lastname@example.org>
Date: 10/05/2007 17:53:45
In article <20071005172402.GA2716@panix.com>,
Thor Lancelot Simon <email@example.com> wrote:
>On Fri, Oct 05, 2007 at 11:18:24AM +0200, Kris Kennaway wrote:
>> Here is the initial run with CVS HEAD sources (I took out the obvious
>> things from GENERIC.MP like I386_CPU support, etc, and removed the
>> default datasize and stack size limits). Same benchmark config that
>> Andrew is using, etc.
>Is this system running an amd64 kernel, or an i386 kernel? One thing I
>noticed when comparing NetBSD and FreeBSD performance for a very diferent
>workload recently was that NetBSD/amd64 is missing even the most recent
>optimized i386 versions of some fairly basic stuff like memset, memcpy,
>copyin/copyout, much less versions tuned for modern processors (e.g. for
>set and copy SSE2 instructions can be used if you know they're present, as
>we do know on amd64). I suspect FreeBSD/amd64 is better about this.
NetBSD's amd64 performance sucks right now. My DELL WS 470, runs a *lot*
slower with NetBSD/amd64 than running NetBSD/i386...