[PATCH 3 of 5] transplant: use set for prune lookup

[Matt Mackall]

On Wed, 2013-04-17 at 09:59 -0400, Augie Fackler wrote:
> On Tue, Apr 16, 2013 at 07:49:09PM +0200, Mads Kiilerich wrote:
> > # HG changeset patch
> > # User Mads Kiilerich <madski at unity3d.com>
> > # Date 1366133519 -7200
> > #      Tue Apr 16 19:31:59 2013 +0200
> > # Node ID 3f621c427c998d049888ab60e6f40b7258f9f65f
> > # Parent  7b1520771113094fdbe19511ef7ef22f2d2666f2
> > transplant: use set for prune lookup
> 
> Before/after perf numbers? For small sets sometimes the list can be
> better than the set? Does fb care about this, and maybe they have a
> performance dashboard for it?

Nope. FB's favorite hammer is rebase.

-- 
Mathematics is the supreme nostalgia of our time.