From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 18 Sep 2007 10:44:35 -0700 From: Andrew Morton Subject: Re: [PATCH] mm: use pagevec to rotate reclaimable page Message-Id: <20070918104435.2ba25ff3.akpm@linux-foundation.org> In-Reply-To: <200709181129.50253.nickpiggin@yahoo.com.au> References: <6.0.0.20.2.20070907113025.024dfbb8@172.19.0.2> <20070913193711.ecc825f7.akpm@linux-foundation.org> <6.0.0.20.2.20070918193944.038e2ea0@172.19.0.2> <200709181129.50253.nickpiggin@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Hisashi Hifumi , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Tue, 18 Sep 2007 11:29:50 +1000 Nick Piggin wrote: > It would be interesting to test -mm kernels. They have a patch which reduces > zone lock contention quite a lot. They do? Which patch? > I think your patch is a nice idea, and with less zone lock contention in other > areas, it is possible that it might produce a relatively larger improvement. I'm a bit wobbly about this patch - it adds additional single-cpu overhead to reduce multiple-cpu overhead and latency. -- 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