Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750838AbWIUAyK (ORCPT ); Wed, 20 Sep 2006 20:54:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750892AbWIUAyJ (ORCPT ); Wed, 20 Sep 2006 20:54:09 -0400 Received: from smtp-out.google.com ([216.239.45.12]:51258 "EHLO smtp-out.google.com") by vger.kernel.org with ESMTP id S1750838AbWIUAyI (ORCPT ); Wed, 20 Sep 2006 20:54:08 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:subject:from:reply-to:to:cc:in-reply-to:references: content-type:organization:date:message-id:mime-version:x-mailer:content-transfer-encoding; b=It95Q9w4NX0+oEFzF8ngFrLzsljj77jLEch54nlMWmnKLn0vVteUarOB78StniOX2 oa3hdc70nQTvvzxa9tSpw== Subject: Re: [patch02/05]: Containers(V2)- Generic Linux kernel changes From: Rohit Seth Reply-To: rohitseth@google.com To: Christoph Lameter Cc: Andi Kleen , CKRM-Tech , devel@openvz.org, linux-kernel In-Reply-To: References: <1158718722.29000.50.camel@galaxy.corp.google.com> <1158770670.8574.26.camel@galaxy.corp.google.com> <200609202014.48815.ak@suse.de> <1158799073.7207.35.camel@galaxy.corp.google.com> Content-Type: text/plain Organization: Google Inc Date: Wed, 20 Sep 2006 17:53:40 -0700 Message-Id: <1158800020.7207.45.camel@galaxy.corp.google.com> Mime-Version: 1.0 X-Mailer: Evolution 2.2.1.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 787 Lines: 21 On Wed, 2006-09-20 at 17:41 -0700, Christoph Lameter wrote: > On Wed, 20 Sep 2006, Rohit Seth wrote: > > > ...my preference is to leave it in page struct...that has non-zero cost. > > Oh. Making struct page bigger than a cacheline or not fitting exactly in a > cacheline has some costs. > Isn't most of the architectures not defining WANT_PAGE_VIRTUAL and thus the page structure on these is not fitting cache line well. In most of these cases the additional pointer will actually make the structure 64 bytes on 64-bit machines. -rohit - 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/