Date: Tue, 13 Mar 2001 03:26:35 -0800 From: Alfred Perlstein <bright@wintelcom.net> To: Mars Attack <marsattack@cannoncreek.com> Cc: Soren Schmidt <sos@freebsd.dk>, Peter Wemm <peter@netplex.com.au>, Mike Meyer <mwm@mired.org>, Helge Oldach <Helge.Oldach@de.origin-it.com>, oberman@es.net, mobile@FreeBSD.ORG, stable@FreeBSD.ORG Subject: Re: Disk I/O problem in 4.3-BETA Message-ID: <20010313032635.Q29888@fw.wintelcom.net> In-Reply-To: <01f001c0abaa$133e1680$4500a8c0@nomad>; from marsattack@cannoncreek.com on Tue, Mar 13, 2001 at 06:40:46PM %2B0800 References: <200103131007.f2DA73h54023@mobile.wemm.org> <01f001c0abaa$133e1680$4500a8c0@nomad>
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* Mars Attack <marsattack@cannoncreek.com> [010313 02:18] wrote: > Geez, this thread is getting longer and all the more confusing, can some > guru possibly attempt to outline the good and bad points of Softupdates or > WC ? 1) softupdates good 2) WC bad (even when not using softupdates) Basically, softupdates doesn't really matter, as long as you have write caching turned on, you're defeating the safeness of FFS (noasync) and FFS (softdep) by allowing the disk to reorder what should be ordered writes. -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] Daemon News Magazine in your snail-mail! http://magazine.daemonnews.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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