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Date: Fri, 7 Dec 2001 13:02:31 -0500 (EST)
From: Joe Clarke <marcus@marcuscom.com>
To: "Roger 'Rocky' Vetterberg" <listsub@rambo.simx.org>
Cc: Ceri <setantae@submonkey.net>, <freebsd-questions@FreeBSD.ORG>
Subject: Re: mount_mfs with softupdate generates panic
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On Fri, 7 Dec 2001, Roger 'Rocky' Vetterberg wrote:

> Ceri wrote:
>
> >On Fri, Dec 07, 2001 at 06:08:22PM +0100, Roger 'Rocky' Vetterberg wrote:
> >
> >>Has anyone used memory disks, with softupdates enabled, succesfully?
> >>
> >
> >There isn't any point.
> >
> What do you mean no point?

I think he means, what's the point of SU on an async filesystem.  If
you're going to mount a filesystem async (and MFS is a good choice to do
so), why enable softupdates?

Joe

> I agree, the performance gained of using Soft Updates on a memory disk
> is probably small, but as I mentioned, this was done purely for
> performance, hence the noatime and async flags.
>
> Im by no means a filesystem expert, but Soft Updates should improve
> performance on memory disks as well as regular harddrives, right?
>
> >
> >This does sound like a bug though.
> >I'll test it myself at some point when I can afford a kernel panic.
> >
> Please let me know what happens, Im very curious to see if this is a bug
> or just my machines.
>
> --
> R
>
>
>
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