Date: Mon, 24 Apr 2006 23:03:59 +0100 From: "Martin Hepworth" <maxsec@gmail.com> To: "Bill Moran" <wmoran@potentialtech.com> Cc: freebsd-questions@freebsd.org Subject: Re: Purchasing the correct hardware: dual-core intel? Big cache? Message-ID: <72cf361e0604241503x6869f8cua7b3ddaa3d70bc4@mail.gmail.com> In-Reply-To: <20060424154617.9dc28c94.wmoran@potentialtech.com> References: <20060424154617.9dc28c94.wmoran@potentialtech.com>
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Bill depends on the application itself, but more RAM and the disk layout (RAID) will be more important than the CPU. Also depends on how write-heavy the apps are... -- martin On 4/24/06, Bill Moran <wmoran@potentialtech.com> wrote: > > > I've been asked to make some hardware recommendations, I'm hoping some > folks on the list can make some suggestions. > > We're looking hard at getting either Intel dual-core procs, or getting > hyperthreaded procs with huge (8M) caches. > > We currently have a few dual proc Intel HT machines that we can test > out our workload on, and I'm trying to get a feel for how to determine > if a larger cache size will generate better performance than replacing > HT procs with full-blown dual-core procs. We're looking at the 6850 > from Dell, which supports both processor families: > > http://www1.us.dell.com/content/products/productdetails.aspx/pedge_6850?c= =3Dus&cs=3D555&l=3Den&s=3Dbiz > > The goal for these machines is to serve out PosgreSQL databases to as > many Apache+php front ends as we can hang off each one. So we're trying > to purchase hardware that will create a DB server that can handle a lot > of web server front ends. > > I have a Dell 2850 (dual HT procs) here that I can use for testing. > I'm a little fuzzy on determining how well the cache is working, so I'm > stuck on whether or not the 8M cache that's available on the HT units > is worth the money or not. Can anyone suggest a testing methodology > that will isolate this particular aspect? > > -- > Bill Moran > Collaborative Fusion Inc. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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