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Date: Wed, 13 Nov 2013 19:16:23 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Davidlohr Bueso <davidlohr@hp.com>
Cc: Ingo Molnar <mingo@kernel.org>, Michel Lespinasse <walken@google.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>, Mel Gorman <mgorman@suse.de>,
        Rik van Riel <riel@redhat.com>, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        "Chandramouleeswaran, Aswin" <aswin@hp.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>
Subject: Re: [PATCH] mm: cache largest vma
Message-ID: <20131113181623.GS21461@twins.programming.kicks-ass.net>
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On Mon, Nov 11, 2013 at 12:47:28PM -0800, Davidlohr Bueso wrote:
> On Mon, 2013-11-11 at 13:04 +0100, Ingo Molnar wrote:
> in find_vma() but the cost of maintaining it comes free. I just ran into
> a similar idea from 2 years ago:
> http://lkml.indiana.edu/hypermail/linux/kernel/1112.1/01352.html

Here's one from 2007:

http://programming.kicks-ass.net/kernel-patches/futex-vma-cache/vma_cache.patch

and I'm very sure Nick Piggin had one even older :-)