From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 Nov 2005 22:36:41 -0800 (PST) From: Christoph Lameter Subject: Re: [PATCH]: Free pages from local pcp lists under tight memory conditions In-Reply-To: <20051122213612.4adef5d0.akpm@osdl.org> Message-ID: References: <20051122161000.A22430@unix-os.sc.intel.com> <20051122213612.4adef5d0.akpm@osdl.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Rohit Seth , torvalds@osdl.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Tue, 22 Nov 2005, Andrew Morton wrote: > > [PATCH]: This patch free pages (pcp->batch from each list at a time) from > > local pcp lists when a higher order allocation request is not able to > > get serviced from global free_list. > > > > This should help fix some of the earlier failures seen with order 1 allocations. > > > > I will send separate patches for: > > > > 1- Reducing the remote cpus pcp That is already partially done by drain_remote_pages(). However, that draining is specific to this processors remote pagesets in remote zones. > This significantly duplicates the existing drain_local_pages(). We need to extract __drain_pcp from all these functions and clearly document how they differ. Seth probably needs to call __drain_pages for each processor. -- 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