linux-kernel - Re: Ext3 vs NTFS performance

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Message-ID: <p73y7k7vzks.fsf@bingen.suse.de>
Date:	02 May 2007 20:40:35 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Theodore Tso <tytso@....edu>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Cabot, Mason B" <mason.b.cabot@...el.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Ext3 vs NTFS performance

Theodore Tso <tytso@....edu> writes:

> On Wed, May 02, 2007 at 02:21:40PM +0200, Andi Kleen wrote:
> > Andrew Morton <akpm@...ux-foundation.org> writes:
> > > 
> > > Conceivably we could address this in the filesystem without mucking other
> > > things up.  But I'd have thought the simplest damage-control would be to
> > > detect this pattern in samba and to then use glibc's fallocate().
> > 
> > The advantage of detecting it in kernel would be that it would handle
> > Linux applications that do this (I suspect there are some) too.
> 
> Um, which applications do you suspect?  So we can hunt down those user
> space applications programmers and slap them silly?  Or rather,
> unsilly, since that there's no good reason to ever suspect that
> writing a byte every 128k would result in a good allocation layout on disk?

Anything that uses glibc fallocate() ?

-Andi
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