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Re: [Qemu-devel] [PATCH 1/4] block: add enable_write_cache flag

From: Christoph Hellwig
Subject: Re: [Qemu-devel] [PATCH 1/4] block: add enable_write_cache flag
Date: Tue, 1 Sep 2009 00:58:25 +0200
User-agent: Mutt/1.3.28i

On Mon, Aug 31, 2009 at 05:53:23PM -0500, Anthony Liguori wrote:
> I think we should pity our poor users and avoid adding yet another 
> obscure option that is likely to be misunderstood.
> Can someone do some benchmarking with cache=writeback and fdatasync 
> first and quantify what the real performance impact is?

I can run benchmarks.  Any workloads that you are particularly looking

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