Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751224AbVLGSZ3 (ORCPT ); Wed, 7 Dec 2005 13:25:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751018AbVLGSZ3 (ORCPT ); Wed, 7 Dec 2005 13:25:29 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:4579 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S1751224AbVLGSZ2 (ORCPT ); Wed, 7 Dec 2005 13:25:28 -0500 Date: Wed, 7 Dec 2005 10:24:58 -0800 (PST) From: Christoph Lameter To: Keith Owens cc: Andi Kleen , linux-kernel@vger.kernel.org, Hugh Dickins , Nick Piggin , linux-mm@kvack.org, linux-ia64@vger.kernel.org, Marcelo Tosatti Subject: Re: [RFC 1/3] Framework for accurate node based statistics In-Reply-To: <9353.1133934652@kao2.melbourne.sgi.com> Message-ID: References: <9353.1133934652@kao2.melbourne.sgi.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 673 Lines: 18 On Wed, 7 Dec 2005, Keith Owens wrote: > On Tue, 6 Dec 2005 14:52:33 -0800 (PST), > Christoph Lameter wrote: > >+DEFINE_PER_CPU(local_t [MAX_NUMNODES][NR_STAT_ITEMS], vm_stat_diff); > > How big is that array going to get? The total per cpu data area is > limited to 64K on IA64 and we already use at least 34K. Maximum around 1k nodes and I guess we may end up with 16 counters: 1024*16*8 = 131k ? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/