linux-ext4 - Re: Ext4 slow on links

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Message-ID: <4FE44089.2010609@fastmail.fm>
Date:	Fri, 22 Jun 2012 11:53:13 +0200
From:	Bernd Schubert <bernd.schubert@...tmail.fm>
To:	Eric Sandeen <sandeen@...hat.com>
CC:	Norbert Preining <preining@...ic.at>, "Ted Ts'o" <tytso@....edu>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: Re: Ext4 slow on links

On 06/21/2012 06:05 AM, Eric Sandeen wrote:
> On 6/20/12 9:28 PM, Norbert Preining wrote:
>> Hi Eric,
>>
>
> You could see if you could get this LD_PRELOAD working:
>
> http://git.kernel.org/?p=fs/ext2/e2fsprogs.git;a=blob_plain;f=contrib/spd_readdir.c
>

Hrmm, I need to look through that commit again, but on a first glance I 
cannot see code doing the sorting for ext3/ext4 only (e.g. by checking 
the fsid). So while I like the general approach, it will have the 
opposite effect for some file systems. I will report that back on the 
coreutils list.

Thanks a lot for the pointer to the commit!


Cheers,
Bernd

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