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Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O

From: Samuel Thibault
Subject: Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O
Date: Mon, 3 Dec 2007 18:08:00 +0100
User-agent: Mutt/1.5.12-2006-07-14

Anthony Liguori, le Mon 03 Dec 2007 09:54:47 -0600, a écrit :
> Have you done any performance testing?  Buffered IO should absolutely 
> beat direct IO simply because buffered IO allows writes to complete 
> before they actually hit disk.

Since qemu can use the aio interface, that shouldn't matter.


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