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Re: [Xen-devel] [PATCH 7/7] introduce write-once optimization



On 21/09/2009 13:12, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:

> This one is likely the most questionable part: Realizing that the
> compiler can do a much better job in terms of CSE when the variables
> needed are constant, this introduces and extension to the read-mostly
> variables, allowing variables to be marked as being written just
> during boot initialization.

Cunning, but this one is a bit too nasty for my taste. The performance wins
would have to be measurable and significant.

 -- Keir



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