[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20160407231413.53e371ff@redhat.com>
Date: Thu, 7 Apr 2016 23:14:13 +0200
From: Jesper Dangaard Brouer <brouer@...hat.com>
To: Kees Cook <keescook@...omium.org>
Cc: brouer@...hat.com, Thomas Garnier <thgarnie@...gle.com>,
Christoph
Lameter <cl@...ux.com>, Pekka Enberg <penberg@...nel.org>,
David Rientjes
<rientjes@...gle.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Andrew Morton
<akpm@...ux-foundation.org>,
Greg Thelen <gthelen@...gle.com>,
"kernel-hardening@...ts.openwall.com"
<kernel-hardening@...ts.openwall.com>,
LKML <linux-kernel@...r.kernel.org>, Linux-MM <linux-mm@...ck.org>,
Laura Abbott <labbott@...oraproject.org>
Subject: Re: [RFC v1] mm: SLAB freelist randomization
On Wed, 6 Apr 2016 14:45:30 -0700 Kees Cook <keescook@...omium.org> wrote:
> On Wed, Apr 6, 2016 at 12:35 PM, Thomas Garnier <thgarnie@...gle.com> wrote:
[...]
> > re-used on slab creation for performance.
>
> I'd like to see some benchmark results for this so the Kconfig can
> include the performance characteristics. I recommend using hackbench
> and kernel build times with a before/after comparison.
>
It looks like it only happens on init, right? (Thus must bench tools
might not be the right choice).
My slab tools for benchmarking the fastpath is here:
https://github.com/netoptimizer/prototype-kernel/blob/master/kernel/mm/slab_bulk_test01.c
And I also carry a version of Christoph's slab bench tool:
https://github.com/netoptimizer/prototype-kernel/blob/master/kernel/mm/slab_test.c
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
Author of http://www.iptv-analyzer.org
LinkedIn: http://www.linkedin.com/in/brouer
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
