From: Dave Barach <dave@barachs.net>
Date: Thu, 28 Jun 2018 14:59:05 +0000 (-0400)
Subject: Fix mheap_get_aligned() performance jackpot
X-Git-Tag: v18.07-rc1~79
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=9c949e72a473195c10a1c1caf503db9467c93f9a;hp=9c949e72a473195c10a1c1caf503db9467c93f9a;p=vpp.git

Fix mheap_get_aligned() performance jackpot

If non-trivial alignment (e.g. 64) requested, and the object size
(e.g. 16) is smaller than (alignment_request -
MHEAP_ELT_OVERHEAD_BYTES), round up the size request.

This avoids creating remainder chunks, which are
false-cache-line-sharing bait to begin with.

Change-Id: Ie1a21286d29557d125bb346254b1be2def868b1a
Signed-off-by: Dave Barach <dave@barachs.net>
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