Date: Wed, 30 Apr 2003 07:57:01 -0500 From: Eric Anderson <anderson@centtech.com> To: agent dero <dero@bluhayz.homeunix.org> Cc: freebsd-performance@freebsd.org Subject: Re: FBSD 5 & SMP Message-ID: <3EAFC81D.4070808@centtech.com> References: <3045.172.178.229.216.1051706735.squirrel@bluhayz.homeunix.org>
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agent dero wrote: > I was reading the FBSD 5.0 release notes, and how the new version has > better support for multiple processors. I haven't been able to find any a > 4.x-STABLE SMP support docs. Does this mean that 4.7, my current release, > doesn't support the multiple processors well. I am rebuilding my small > business' server, and trying to decide if a dual processor will be the > better way to go, but not sure if the advantages are going to be huge with > the. I read the previous message about WITH_THREADS as a ports option, but > the ports maximizing the dual CPUs isn't my greatest, I need the kernel > itself to maximize the CPUs. Is this possible under any of the stable > releases, before 5.0 ?? Yes, FreeBSD versions prior to 5.0 have SMP support, however 5.0's support is more "finely tuned" and will give you better results. However, since this sounds like a production server, you may want to stick with 4.8-RELEASE, and built a new kernel with SMP support. Depending on what you are using the machine for, you may or may not see a performance benefit of a dual processor machine. What's the machine's primary function? Eric -- ------------------------------------------------------------------ Eric Anderson Systems Administrator Centaur Technology Attitudes are contagious, is yours worth catching? ------------------------------------------------------------------
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