hgwatchman: inotify that works

Siddharth Agarwal sid0 at fb.com
Fri Aug 30 16:05:38 CDT 2013

We've just released the fast status Mercurial extension that we're using 
at FB.


This went through a beta test of over a month, and has been turned on 
for everyone using Mercurial at FB for a couple of weeks.

For our 200,000 file repo, this brings hg status down from over 3 
seconds to under 0.6.

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