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Re: XFS unlink still slow on 3.1.9 kernel ?

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: XFS unlink still slow on 3.1.9 kernel ?
From: Richard Ems <richard.ems@xxxxxxxxxxxxxxxxx>
Date: Mon, 13 Feb 2012 18:11:30 +0100
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20120213170825.GA7197@xxxxxxxxxxxxx>
References: <4F394116.8080200@xxxxxxxxxxxxxxxxx> <20120213170825.GA7197@xxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120129 Thunderbird/10.0.1
On 02/13/2012 06:08 PM, Christoph Hellwig wrote:
> On Mon, Feb 13, 2012 at 05:57:58PM +0100, Richard Ems wrote:
>> This is a backup system running dirvish, so most files in the dirs I am
>> removing are hard links. Almost all of the files do have ACLs set.
> How many ACLs do you usually have set?  If they aren't stored inline
> but need to go out of the inode unlinks will be extremly slow for
> kernels before v3.2.

Almost all dirs and files there do have ACLs set.
Each of them do have about 10 user ACLs and 10 default ACls.
Is that too many?
Is this then the reason for being that slow?
Will updating to a kernel > 3.2 improve the unlink speed?

Many thanks,

Richard Ems       mail: Richard.Ems@xxxxxxxxxxxxxxxxx

Cape Horn Engineering S.L.
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