From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@labs.coraid.com>
Date: Wed,  6 Jul 2011 13:11:21 -0400
To: 9fans@9fans.net
Message-ID: <d0e0ba64ad185a4a2529c9248a1d9ef1@coraid.com>
In-Reply-To: <4129bd2e772e6f2068f8cd02d61c28a3@quintile.net>
References: <4129bd2e772e6f2068f8cd02d61c28a3@quintile.net>
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Subject: Re: [9fans] pcie for inter machine comms
Topicbox-Message-UUID: fb00eca6-ead6-11e9-9d60-3106f5b1d025

> I seem to remember IBM did somthing like this with back-to-back DMAs in
> RS6000 in the early 1990s, but does anyone do it now? or do we feel that
> UDP over 40gE is fast enough for anything anyone needs (at present)?

40gbe has more bandwidth than an 8 lane pcie 2.0 slot, but obviously
bandwidth != latency.  :-)

i'm not sure why you'd use udp if you're using it as a bus, though.

- erik