From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 1 Dec 2006 11:59:07 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC][PATCH 0/1] Node-based reclaim/migration Message-Id: <20061201115907.de2ff964.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20061129030655.941148000@menage.corp.google.com> <6599ad830611301109n8c4637ei338ecb4395c3702b@mail.gmail.com> <6599ad830611301153i231765a0ke46846bcb73258d6@mail.gmail.com> <6599ad830611301207q4e4ab485lb0d3c99680db5a2a@mail.gmail.com> <6599ad830611301333v48f2da03g747c088ed3b4ad60@mail.gmail.com> <6599ad830611301548y66e5e66eo2f61df940a66711a@mail.gmail.com> <20061201114414.0c90f649.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: menage@google.com, hugh@veritas.com, linux-mm@kvack.org, akpm@osdl.org List-ID: On Thu, 30 Nov 2006 18:43:01 -0800 (PST) Christoph Lameter wrote: > On Fri, 1 Dec 2006, KAMEZAWA Hiroyuki wrote: > > > This is a patch. not tested at all, just idea level. > > (seems a period of taking rcu_read_lock() is a bit long..) > > This is what we have been trying to avoid. Using rcu means that the > anon_vma cacheline gets cold and this will badly influence benchmarks. > Ah, okay. rcu's batch-freeing makes cacheline cold. sorry. -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org