Date: Wed, 18 Jun 2003 13:35:14 -0400 From: Chuck Swiger <cswiger@mac.com> To: Forrest Aldrich <forrie@forrie.com> Cc: freebsd-questions@freebsd.org Subject: Re: mfs/ramdisk performance issues Message-ID: <3EF0A2D2.2070508@mac.com> In-Reply-To: <5.2.1.1.2.20030618121909.03c44748@192.168.1.1> References: <5.2.1.1.2.20030618121909.03c44748@192.168.1.1>
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Forrest Aldrich wrote: [ ... ] > In a mail gateway configuration, several people have suggested that > using a tmpfs (or mfs, depending upon your flavor of Unix) would provide > a performance increase (i/o). Though someone argued (on a list > posting) that the buffering on normal disk operation would probably be > better. I'm not sure about "better", but certainly "safer". What happens to spooled mail on a tmpfs/mfs filesystem when the system goes down? Anyway, most mail servers are limited by network bandwidth, not by local I/O performance. If you're not talking about hundreds of thousands of messages per day, you probably don't need to worry about performance tuning this aspect. -- -Chuck
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