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Re: [Qemu-devel] Block I/O optimizations
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] Block I/O optimizations |
Date: |
Wed, 13 Mar 2013 16:21:06 +0100 |
On Thu, Feb 21, 2013 at 9:11 AM, Stefan Hajnoczi <address@hidden> wrote:
> On Mon, Feb 18, 2013 at 7:19 PM, Loic Dachary <address@hidden> wrote:
>> I recently tried to figure out the best and easiest ways to increase block
>> I/O performances with qemu. Not being a qemu expert, I expected to find a
>> few optimization tricks. Much to my surprise, it appears that there are many
>> significant improvements being worked on. This is excellent news :-)
>>
>> However, I'm not sure I understand how they all fit together. It's probably
>> quite obvious from the developer point of view but I would very much
>> appreciate an overview of how dataplane, vhost-blk, ELVIS etc. should be
>> used or developed to maximize I/O performances. Are there documents I should
>> read ? If not, would someone be willing to share bits of wisdom ?
>
> Hi Loic,
> There will be more information on dataplane shortly. I'll write up a
> blog post and share the link with you.
Hi Loic,
Here is an overview of virtio-blk data plane and how to use it:
http://blog.vmsplice.net/2013/03/new-in-qemu-14-high-performance-virtio.html
Stefan