linux-kernel - Re: [PATCH 00/23] per device dirty throttling -v8

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Date:	Sat, 4 Aug 2007 21:26:15 +0200
From:	Jörn Engel <joern@...fs.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Jörn Engel <joern@...fs.org>,
	Jeff Garzik <jeff@...zik.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, linux-mm@...ck.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	miklos@...redi.hu, akpm@...ux-foundation.org, neilb@...e.de,
	dgc@....com, tomoki.sekiyama.qu@...achi.com, nikita@...sterfs.com,
	trond.myklebust@....uio.no, yingchao.zhou@...il.com,
	richard@....demon.co.uk, david@...g.hm
Subject: Re: [PATCH 00/23] per device dirty throttling -v8

On Sat, 4 August 2007 21:21:30 +0200, Ingo Molnar wrote:
> * Jörn Engel <joern@...fs.org> wrote:
> 
> > > I actually vote for that.  IMO, distros should turn -on- atime 
> > > updates when they know its needed.
> > 
> > If you mean "relatime" I concur.  "noatime" hurts mutt and others 
> > while "relatime" has no known problems, afaics.
> 
> so ... one app can keep 30,000+ apps hostage?
> 
> i use Mutt myself, on such a filesystem:
> 
>    /dev/md0 on / type ext3 (rw,noatime,nodiratime,user_xattr)
> 
> and i can see no problems, it notices new mails just fine.

Given the choice between only "atime" and "noatime" I'd agree with you.
Heck, I use it myself.  But "relatime" seems to combine the best of both
worlds.  It currently just suffers from mount not supporting it in any
relevant distro.

Jörn

-- 
Joern's library part 2:
http://www.art.net/~hopkins/Don/unix-haters/tirix/embarrassing-memo.html
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