From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761646AbYCZARL (ORCPT ); Tue, 25 Mar 2008 20:17:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757557AbYCZAQy (ORCPT ); Tue, 25 Mar 2008 20:16:54 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:47323 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1758077AbYCZAQy (ORCPT ); Tue, 25 Mar 2008 20:16:54 -0400 Date: Tue, 25 Mar 2008 17:16:49 -0700 (PDT) Message-Id: <20080325.171649.223175755.davem@davemloft.net> To: tony.luck@intel.com Cc: paulus@samba.org, clameter@sgi.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, torvalds@linux-foundation.org Subject: Re: larger default page sizes... From: David Miller In-Reply-To: <1FE6DD409037234FAB833C420AA843ECE9E2CA@orsmsx424.amr.corp.intel.com> References: <18408.59112.945786.488350@cargo.ozlabs.ibm.com> <20080325.163240.102401706.davem@davemloft.net> <1FE6DD409037234FAB833C420AA843ECE9E2CA@orsmsx424.amr.corp.intel.com> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Luck, Tony" Date: Tue, 25 Mar 2008 16:49:23 -0700 > Making an application use huge pages as heap may be simple > (just link with a different library to provide with a different > version of malloc()) ... code, stack, mmap'd files are all > a lot harder to do transparently. The kernel should be able to do this transparently, at the very least for the anonymous page case. It should also be able to handle just fine chips that provide multiple page size support, as many do.