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Re: [Qemu-devel] [PATCH v3] block: Add support for Secure Shell (ssh) bl
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH v3] block: Add support for Secure Shell (ssh) block device. |
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Date: |
Wed, 27 Mar 2013 07:35:29 +0100 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Mar 26, 2013 at 07:34:43PM +0000, Richard W.M. Jones wrote:
>
> BTW, I'd be interested in tips on what software/techniques people use
> for benchmarking qemu block devices.
>
> So far I've been testing this by booting various guests and timing how
> long they take to reach various stages (eg. graphical login), but this
> has not proven to be reproducible.
Running fio inside the guest is the way to go for real benchmarking:
http://freecode.com/projects/fio
For quick benchmarks you could use one more more dd(1) processes:
dd if=/dev/vdb of=/dev/null iflag=direct bs=64k
Stefan