linux-kernel - Re: [PATCH] mm/rmap.c: reuse mergeable anon

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Message-ID: <20191004161120.GI32665@bombadil.infradead.org>
Date:   Fri, 4 Oct 2019 09:11:20 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Wei Yang <richardw.yang@...ux.intel.com>
Cc:     akpm@...ux-foundation.org, kirill.shutemov@...ux.intel.com,
        jglisse@...hat.com, mike.kravetz@...cle.com, riel@...riel.com,
        khlebnikov@...dex-team.ru, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/rmap.c: reuse mergeable anon_vma as parent when fork

On Sat, Oct 05, 2019 at 12:06:32AM +0800, Wei Yang wrote:
> After this change, kernel build test reduces 20% anon_vma allocation.

But does it have any effect on elapsed time or peak memory consumption?