commit a02f0484d7b4aef002c7afeaa8dc0af918bab142
author Peter Collingbourne <peter@pcc.me.uk> Tue Nov 03 18:00:40 2020 -0800
committer Christopher Ferris <cferris@google.com> Thu Nov 05 09:35:53 2020 -0800
tree c4f7fc3a84d71d575dc4c1246ca53fe07a688ee8
parent 32a91a4081cfaa304a02de68b9965a915efebc0e

scudo: Don't memset previously released cached pages in the secondary allocator.

There is no need to memset released pages because they are already
zero. On db845c, before:

BM_stdlib_malloc_free_default/131072      34562 ns        34547 ns        20258 bytes_per_second=3.53345G/s

after:

BM_stdlib_malloc_free_default/131072      29618 ns        29589 ns        23485 bytes_per_second=4.12548G/s

Differential Revision: https://reviews.llvm.org/D90814

GitOrigin-RevId: ee7b629df27113c2752814efdec960042f799b03
Change-Id: I1eaa77dcbf439a45b8ba26ffabdedcd955f53e7c