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In-Reply-To: <200906211152.25100.arvidjaar@mail.ru>
References: <200906211152.25100.arvidjaar@mail.ru>
Date: Sun, 21 Jun 2009 14:26:15 +0300
Message-ID: <84144f020906210426h6a41ad3csf6d9731663e30834@mail.gmail.com>
Subject: Re: Why half of slabs are not shown in /proc/slabinfo?
From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Andrey Borzenkov <arvidjaar@mail.ru>
Cc: linux-kernel@vger.kernel.org, Christoph Lameter <cl@linux-foundation.org>
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On Sun, Jun 21, 2009 at 10:52 AM, Andrey Borzenkov<arvidjaar@mail.ru> wrote:
> Mandriva kernel 2.6.30 using SLUB:
>
> {pts/1}% grep SLUB /boot/config
> CONFIG_SLUB_DEBUG=y
> CONFIG_SLUB=y
> # CONFIG_SLUB_DEBUG_ON is not set
> # CONFIG_SLUB_STATS is not set
>
> Some of slabs (e.g. filp) are not shown in /proc/slabinfo; comparing
> number of entries under /sys and slabinfo results in
>
> {pts/0}% =ls -1 /sys/kernel/slab | grep -v : | wc -l
> 131
> {pts/0}% wc -l /proc/slabinfo
> 68 /proc/slabinfo
> {pts/0}%
>
> so almost half of the all entries are missing. Is it expected or there
> is something wrong here?

Can you post the actual file listing of /sys/kernel/slab and the
contents of /proc/slabinfo?

                               Pekka
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