Date: Tue, 23 May 2006 16:30:37 +0300 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Brooks Davis <brooks@one-eyed-alien.net> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: md /tmp and async mounts Message-ID: <20060523133037.GA2908@gothmog.pc> In-Reply-To: <20060522231437.GC1446@odin.ac.hmc.edu> References: <20060522211223.GA3621@xor.obsecurity.org> <20060522231437.GC1446@odin.ac.hmc.edu>
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On 2006-05-22 16:14, Brooks Davis <brooks@one-eyed-alien.net> wrote:
>On Mon, May 22, 2006 at 05:12:24PM -0400, Kris Kennaway wrote:
>> I noticed that with tmpmfs in rc.conf, the md is not being mounted
>> with -o async; this is an enormous performance boost, so is there a
>> reason it is not used, or just that it was overlooked?
>
> Just overlooked as far as I know. We correctly switched to not mounting
> with softupdates, but should probably switch to -o async.
Right. The only reasons why the current tmpmfs_flags doesn't
include the `-o async' option too are:
a) It didn't back when it was all hardcoded in the script
b) I didn't think about adding it by default when revision
1.230 of src/etc/defaults/rc.conf was committed by me
If it does improve things, we should probably make the change :)
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