From: Rick Jones <rick.jones2@hp.com>
To: Michael Iatrou <m.iatrou@freemail.gr>
Cc: netdev@oss.sgi.com
Subject: Re: IPsec performance over UDP
Date: Tue, 10 May 2005 11:41:27 -0700 [thread overview]
Message-ID: <42810057.4020800@hp.com> (raw)
In-Reply-To: <200505101949.12236.m.iatrou@freemail.gr>
Michael Iatrou wrote:
> Hi,
>
> I did some testing for IPsec performance over UDP. I used two identical PCs,
> connected back-to-back, with Intel Xeon 2.8GHz (SMP/SMT disabled), 512MB RAM,
> e1000 (82546EB), running Linux 2.6.11.7.
>
> I tested AES {128,192,256}, DES, 3DES, SHA, MD5 and various combinations of
> them for ESP and AH.
>
> Network performance:
> http://members.hellug.gr/iatrou/udp-throughput.png
>
> CPU utilization:
> http://members.hellug.gr/iatrou/udp-cpu.png
>
> The "unexpected" result is that there is 30% idle time even if the network is
> not saturated!
Perhaps the sending side got intra-stack flow-controlled?
rick jones
next prev parent reply other threads:[~2005-05-10 18:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-10 16:49 IPsec performance over UDP Michael Iatrou
2005-05-10 18:41 ` Rick Jones [this message]
2005-05-10 20:35 ` Michael Iatrou
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