From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 13 Feb 2007 10:03:36 -0800 From: Andrew Morton Subject: Re: Use ZVC counters to establish exact size of dirtyable pages Message-Id: <20070213100336.4ba10f3f.akpm@linux-foundation.org> In-Reply-To: References: <20070213000411.a6d76e0c.akpm@linux-foundation.org> 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: linux-mm@kvack.org List-ID: > On Tue, 13 Feb 2007 09:43:43 -0800 (PST) Christoph Lameter wrote: > > I believe i386 NUMA is rare as hen's teeth and perhaps we can just forget > > about optimising for it. > > I was just trying to avoid complaints..... I'd be glad to drop the stuff. > Its going to be much simpler that way. That code used to do a walk across each CPU's global memory counters and hence was quite expensive. But it's called infrequently, so things were OK. And it is still called infrequently, so I expect we'll still be OK here. -- 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