linux-kernel - Re: How to find slab\'s usage?

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Message-ID: <Pine.LNX.4.64.0710151150530.25274@schroedinger.engr.sgi.com>
Date:	Mon, 15 Oct 2007 11:51:30 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	linux-kernel@...r.kernel.org, Albert Cahalan <acahalan@...il.com>
Subject: Re: How to find slab\'s usage?

On Sat, 13 Oct 2007, Pekka Enberg wrote:

> Hi,
> 
> On 10/12/07, Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> wrote:
> > > > I saw /proc/meminfo and it seems to me that slab is leaking memory.
> > > > But /usr/bin/slabtop claims /proc/slabinfo is missing.
> 
> At some point in time, I wrote:
> > > Do you have CONFIG_SLUB enabled? Try looking into /sys/slab/.
> 
> On 10/13/07, Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> wrote:
> > Yes. There is /sys/slab/ .
> > But are there any tools for browsing like /usr/bin/slabtop ?
> > Is
> >   cd /sys/slab/; for i in *; do echo -n $i " "; cat $i/slabs; done
> > the only way currently available?

There is a tool in Documentation/vm/slabinfo.c. Just compile that.

> I don't think slabtop in procps has been updated to support slub. Christoph?

slabinfo can probably do much of what slabtop does.

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