From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 19 Aug 2008 09:51:01 +0200 From: Nick Piggin Subject: Re: [patch] mm: page allocator minor speedup Message-ID: <20080819075101.GB10447@wotan.suse.de> References: <20080818122428.GA9062@wotan.suse.de> <20080818122957.GE9062@wotan.suse.de> <20080818162934.aba8793e.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080818162934.aba8793e.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-mm@kvack.org, hugh@veritas.com List-ID: On Mon, Aug 18, 2008 at 04:29:34PM -0700, Andrew Morton wrote: > On Mon, 18 Aug 2008 14:29:57 +0200 > Nick Piggin wrote: > > > Now that we don't put a ZERO_PAGE in the pagetables any more, and the > > "remove PageReserved from core mm" patch has had a long time to mature, > > let's remove the page reserved logic from the allocator. > > > > This saves several branches and about 100 bytes in some important paths. > > This of course made a big mess against the page reclaim rewrite. I > think I fixed it up. > > I could have merged it ahead, but then that would have made a big mess > of the page reclaim rewrite. Sure, thanks. It's not very important so it can wait on the page reclaim rewrite. > Testing and reviewing the page reclaim rewrite would be a useful > place to spend time.. Yes it seems to have settled down a bit now. Fair few other things pretty high on the list to look at too, but I will have to make time for this. -- 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