linux-kernel - Re: very poor ext3 write performance on big filesystems?

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Date:	Wed, 20 Feb 2008 11:57:09 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Theodore Tso <tytso@....edu>
cc:	Andi Kleen <andi@...stfloor.org>,
	Tomasz Chmielewski <mangoo@...g.org>,
	LKML <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: very poor ext3 write performance on big filesystems?


On Feb 18 2008 10:35, Theodore Tso wrote:
>On Mon, Feb 18, 2008 at 04:57:25PM +0100, Andi Kleen wrote:
>> > Use cp
>> > or a tar pipeline to move the files.
>> 
>> Are you sure cp handles hardlinks correctly? I know tar does,
>> but I have my doubts about cp.
>
>I *think* GNU cp does the right thing with --preserve=links.  I'm not
>100% sure, though --- like you, probably, I always use tar for moving
>or copying directory hierarchies.

But GNU tar does not handle acls and xattrs. So back to rsync/cp/mv.
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