Mark Rowe dcd36a4f99 Eliminate quadratic behavior in SourceWatcher::poll_once!. ... Both `Array#reject` and `Array#include?` have linear time complexity. This results in quadratic time complexity when `Array#include?` is called within `Array#reject`'s block. Using `Array`'s difference operator gives the same result in linear time. In a site with ~14,000 files, this drops the time taken by some calls to `SourceWatcher::poll_once!` from ~15 seconds each to just a few milliseconds.		2016-08-11 00:24:42 -07:00
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source_watcher.rb	Eliminate quadratic behavior in SourceWatcher::poll_once!.	2016-08-11 00:24:42 -07:00