linux-kernel - Re: [PATCH] Allow increasing the buffer-head per-CPU LRU size

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Message-ID: <20140710141723.GS18735@two.firstfloor.org>
Date:	Thu, 10 Jul 2014 16:17:23 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Sebastien Buisson <sebastien.buisson@...l.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>, viro@...iv.linux.org.uk,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Allow increasing the buffer-head per-CPU LRU size

On Thu, Jul 10, 2014 at 09:29:39AM +0200, Sebastien Buisson wrote:
> 
> Le 10/07/2014 09:07, Andrew Morton a écrit :
> >This hardwires 16 if ext4&quota and 8 otherwise.  There's no way for
> >anyone to alter this decision if they think it will be helpful (or
> >harmful) in their setup.
> 
> In fact I do not know how to let experienced people alter the value
> without confusing the others with yet another obscure config option
> (Andi's comment). I would welcome any suggestion to achieve this.

I don't think we should generally expose it.

If someone really wants to experiment they can change the source.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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