Date: Tue, 8 Nov 2005 18:07:14 -0500 (EST) From: user <user@dhp.com> To: David Kirchner <dpk@dpk.net> Cc: freebsd-questions@freebsd.org Subject: Re: how do I tell FreeBSD to sync, for real ? Message-ID: <Pine.LNX.4.21.0511081759040.8180-100000@shell.dhp.com> In-Reply-To: <35c231bf0511081458w24119f79g3e32786cb997d4cc@mail.gmail.com>
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On Tue, 8 Nov 2005, David Kirchner wrote: > On 11/8/05, user <user@dhp.com> wrote: > > No, I'm not asking "why do I need to sync" ... I understand why I need to > > wait, or issue a sync command. No problems there. > > > > What I am asking is, why is one issuance of `sync` not enough ? Why is > > two not enough ? Why do I need to issue 6 or 8 of them ? > > Softupdates is why. If you disable softupdates (tunefs -n disable > /dev/whatever) you shouldn't have to worry about the sync delay any > more. > > I do wish there was a way to force it to sync to disk on demand, though. Yes, that is what I am looking for. Well, a way besides: sync ; sync ; sync ; sync ; sync ; sync ; echo "boy am I a jackass" or: mount -ur /mnt/fs ; mount -uw /mnt/fs ; echo "what a loser I am"
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