From mboxrd@z Thu Jan  1 00:00:00 1970
From: McGroarty <mcgroarty@gmail.com>
Subject: Why are I/O rings bidirectional?
Date: Mon, 7 Feb 2005 16:59:00 -0600
Message-ID: <d496a7f505020714592e6f3a79@mail.gmail.com>
Reply-To: McGroarty <mcgroarty@gmail.com>
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Hello. I am reading Xen and the Art of Virtualization. I am curious as
to why the async I/O ring buffers contain both requests and responses
in the same ring.

I have not seen this done before. Is it not more efficient to have one
ring for each direction? What is the benefit of the single ring?


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