D477: revlog: add option to mmap revlog index

[simonfar (Simon Farnsworth)]

simonfar added inline comments.

INLINE COMMENTS

> revlog.py:343
> +            if self._mmapindex:
> +                indexdata = util.buffer(util.mmapread(f))
> +            else:

Is there any reason for `mmapread` to not immediately wrap the data in a `util.buffer` for you?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D477

To: mbthomas, #fbhgext, indygreg, #hg-reviewers
Cc: simonfar, mercurial-devel