Date: Tue, 02 Mar 2004 11:20:54 -0500 From: Chuck Swiger <cswiger@mac.com> To: Joseph Koenig <joe@jwebmedia.com> Cc: freebsd-questions@freebsd.org Subject: Re: 1 processor vs. 2 Message-ID: <4044B466.90409@mac.com> In-Reply-To: <BC6A0533.1DC4C%joe@jwebmedia.com> References: <BC6A0533.1DC4C%joe@jwebmedia.com>
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Joseph Koenig wrote: > I'm putting together a system that will host a relatively small database > (around 20,000 records), as well as run Apache / PHP to search that > database. I have the option in front of me to use a P III dual 1GHz machine > with a SCSI Raid 5, or to use a single P4 2.8 GHz with a SCSI Raid 1. Both > have 1GB RAM. I'm looking to use MySQL as the DB [ ... ] I'd choose the P4 machine, not because of the difference in CPUs as much as because RAID-1 is much better suited for hosting a database than RAID-5. You probably don't need the horsepower of the P4, or even a dual-P3 box unless your workload per transaction is fairly high. 2m hits per month is less than one hit per second; if you have one DB query per pageview, and ~10 hits per page, your average transaction load is going to be quite low. On the other hand, if your usage patterns are bursty, a dual-proc machine helps reduce latency better than a single-proc might... -- -Chuck
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