diff contrib/perf.py @ 34302:3bb2a9f25fe9

util: add an mmapread method This is useful for large files that are only partly touched. Test Plan: Will be used and tested in a later patch. Differential Revision: https://phab.mercurial-scm.org/D476
author Mark Thomas <mbthomas@fb.com>
date Thu, 21 Sep 2017 05:54:34 -0700
parents 04fa5520d167
children b3538c03a804
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