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Re: Memory and quota issues.

To: Dana Soward <dragon@xxxxxxxxxxx>
Subject: Re: Memory and quota issues.
From: Andi Kleen <ak@xxxxxxx>
Date: Wed, 16 May 2001 00:23:39 +0200
Cc: Joshua Baker-LePain <jlb17@xxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <Pine.LNX.4.21.0105151421150.15848-100000@xxxxxxxxxxxxxxxxx>; from dragon@xxxxxxxxxxx on Tue, May 15, 2001 at 02:23:38PM -0700
References: <Pine.LNX.4.30.0105151659190.926-100000@xxxxxxxxxxxxxxxxxx> <Pine.LNX.4.21.0105151421150.15848-100000@xxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On Tue, May 15, 2001 at 02:23:38PM -0700, Dana Soward wrote:
> This is the output of free.  It IS using it, its not cached.

You cannot distingush between used and cached in Linux, it's all the same
programs and program data and cached file data are all in the same page cache,
and free shows it as mem used.
The buffers column shown in free is only the data used for metadata buffers,
like directories on disk, which is only a small fraction of the cached data.
XFS in fact can put them also into the page cache, so the metadata buffers
are even less important.

-Andi

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