linux-kernel - Re: Reading /proc/slabinfo causes stalls

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Message-ID: <CAMjP1K=vWLNqOjgwnvq9NfWU2af-M7+CFMtp9naraFO+Xmod6A@mail.gmail.com>
Date:	Tue, 16 Oct 2012 14:04:58 -0500
From:	Avleen Vig <avleen@...il.com>
To:	Christoph Lameter <cl@...ux.com>
Cc:	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...nel.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Reading /proc/slabinfo causes stalls

On Tue, Oct 16, 2012 at 1:55 PM, Christoph Lameter <cl@...ux.com> wrote:
> On Tue, 16 Oct 2012, David Rientjes wrote:
>
>> Or convert slab_mutex to be a rwlock?
>
> The RT folks just converted it to a mutex.... ;-)

Damn :-)

I'll play around with SLUB.
There were some concerns that it doesn't perform as well as SLAB on
large hardware (we're almost always running >16G RAM, and regularly
>96G RAM on things like memcache servers).
If the performance pans out, SLUB would be great.
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