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Re: [Xen-devel] [BUNDLE] Xen Share w/ block device

On 17 Feb 2006, at 07:22, Rusty Russell wrote:

I don't doubt that better memory performance can be achieved by
adjusting event notification frequency/batching -- as you pointed out
earlier... but block devices are a pretty weird place to try to win.
I'd expect the numbers from the two tests you're running to be
identical -- and bottlenecked on the disk.  By a lot.

Hmm, my dom0 only has 128MB of RAM, and my dom1 64MB.  Wonder if I'm
getting bad behaviour due to small amounts of memory?

I was just happy to get my code working, but I'll dig deeper next week.

Perhaps one backend is hitting the buffer cache and the other is bypassing it?

 -- Keir

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