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SubjectRe: [GIT PULL] iov_iter: Improve page extraction (pin or just list)
Date
John Hubbard <jhubbard@nvidia.com> wrote:

> This is something that we say when adding pin_user_pages_fast(),
> yes. I doubt that I can quickly find the email thread, but we
> measured it and weren't immediately able to come up with a way
> to make it faster.

percpu counters maybe - add them up at the point of viewing?

David

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