Date: Mon, 5 Oct 1998 10:48:11 +0900 (JST) From: Michael Hancock <michaelh@cet.co.jp> To: Hinrich Eilts <eilts@tor.muc.de> Cc: freebsd-fs@FreeBSD.ORG Subject: Re: filesystem safety and SCSI disk write caching Message-ID: <Pine.BSF.3.95LJ1.1b3.981005104432.2489A-100000@sv01.cet.co.jp> In-Reply-To: <199810041400.QAA02453@tor.muc.de>
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On Sun, 4 Oct 1998, Hinrich Eilts wrote: > > I can post (once again) the results of a Novell study on server usage > > patterns. The 30,000 foot view for a typical server breaks down to: > > > > 75% reads > > 15% writes > > 8% directory search operations > > 2% other > > How does this translate to disk usage? I think, VM/buffer cache will > reduce reads and directory search operations quite a lot. No. Yes. The ratio of actual disk writes to disk reads is probably enough to justify the effort to optimize writes. Regards, Mike Hancock To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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