Re: [Xen-devel] RE: information leaking between domains viagranted pages?

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 4/3/08 09:43, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:

>> Yes, it's a little surprising, but experiments showed that, even with
>> lareg
>> datagrams, the performance of copying versus flipping was pretty
>> comparable.
>> With normal Ethernet MTU copying was significantly faster. Also
> copying
>> gives us more flexibility wrt where we place the data in the domU
> page. So
>> flipping is now deprecated.
>> 
> 
> Even with large send offload?

Up to a page of data, yes, and that's all that matters (since flipping
overhead is per-page).

 -- Keir



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