Commits on Feb 16, 2015

1. Avoid bloom filter churn. …

   When a cached bloom filter is found during traversal, there are two
   cases, both of which currently do unnecessary allocations. This patch
   avoids these allocations. In the process, it renders correct two
   previously-incorrect comments, and moves one of those comments into a
   better spot.
   
   While scrolling moderately fast all the way through the "Guardians of
   the Galaxy" Wikipedia page, this patch (a) avoids 1.2 million calls to
   `clone()` and (b) replaces 111,000 `BloomFilter::new()` calls with
   `clear()` calls.

   

   nnethercote committed Feb 16, 2015
   edf00a5

2. Update a comment about STYLE_BLOOM.

   

   nnethercote committed Feb 16, 2015

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