From: Rick Jones <rick.jones2@hp.com>
To: Marek Kierdelewicz <marek@piasta.pl>
Cc: netfilter@vger.kernel.org
Subject: Re: netfilter performance dependent on arch
Date: Tue, 07 Feb 2012 10:23:24 -0800 [thread overview]
Message-ID: <4F316C1C.5020400@hp.com> (raw)
In-Reply-To: <20120207183453.522fa74b@catus>
On 02/07/2012 09:34 AM, Marek Kierdelewicz wrote:
> Hi,
>
> Can anyone point me to some performance comparison of netfilter on i686
> and x86_64? I have a few linux routers doing a lot of firewalling and
> QoS. Currently those routers use i686 arch on 64-bit hardware. Would I
> notice any performance gain after moving to 64-bit kernel?
Apart from the obvious "Try it on your workload and see." suggestion,
you could I suppose make the assumption that a netfilter workload looks
similar to one or more components of something like
SPECint_rate_base2006 or SPECint_base2006 and mine the results on
www.spec.org for some comparisons between 32 and 64 bit compiles on the
same chip(s). Probably want something with lots of control flow (term?)
rather than loops and such. A high-level description of the integer
components can be found at http://www.spec.org/cpu2006/CINT2006/ . One
of my first guesses would be 400.perlbench and 403.gcc but definitely
peruse the descriptions of all of them.
rick jones
next prev parent reply other threads:[~2012-02-07 18:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-07 17:34 netfilter performance dependent on arch Marek Kierdelewicz
2012-02-07 18:23 ` Rick Jones [this message]
2012-02-07 18:54 ` Marek Kierdelewicz
2012-02-07 19:11 ` Stephen Hemminger
2012-02-07 19:48 ` Marek Kierdelewicz
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