From mboxrd@z Thu Jan  1 00:00:00 1970
From: George Dunlap <George.Dunlap@eu.citrix.com>
Subject: Re: design philosophy of blktap
Date: Mon, 20 Jul 2015 10:52:47 +0100
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To: Xuehan Xu <xxhdx1985126@gmail.com>, Felipe Franciosi <felipe.franciosi@citrix.com>
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On Mon, Jul 20, 2015 at 6:01 AM, Xuehan Xu <xxhdx1985126@gmail.com> wrote:
> Hi, everyone.
>
> I don't quite follow the design philosophy of blktap. Since every virtual
> disk is backed by a tapdisk process, when there are hundreds of domU running
> and doing I/O operation simultaneously, which means that hundreds of tapdisk
> process are doing I/O read/write simulataneously in dom0, won't the I/O
> performance of domU be hurt badly?

I think Felipe (cc'd) might be the best person to answer this sort of question.

 -George