From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linux-foundation.org (smtp1.linux-foundation.org [140.211.169.13]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smtp.linux-foundation.org", Issuer "CA Cert Signing Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 9AC67DDF0A for ; Thu, 31 Jul 2008 05:41:45 +1000 (EST) Message-ID: <4890C3A5.8050700@linux-foundation.org> Date: Wed, 30 Jul 2008 14:40:21 -0500 From: Christoph Lameter MIME-Version: 1.0 To: Mel Gorman Subject: Re: [RFC] [PATCH 0/5 V2] Huge page backed user-space stacks References: <20080730014308.2a447e71.akpm@linux-foundation.org> <20080730172317.GA14138@csn.ul.ie> <20080730103407.b110afc2.akpm@linux-foundation.org> <20080730193010.GB14138@csn.ul.ie> In-Reply-To: <20080730193010.GB14138@csn.ul.ie> Content-Type: text/plain; charset=ISO-8859-15 Cc: linux-mm@kvack.org, libhugetlbfs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, Andrew Hastings , Eric Munson , Andrew Morton List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Mel Gorman wrote: > With Erics patch and libhugetlbfs, we can automatically back text/data[1], > malloc[2] and stacks without source modification. Fairly soon, libhugetlbfs > will also be able to override shmget() to add SHM_HUGETLB. That should cover > a lot of the memory-intensive apps without source modification. So we are quite far down the road to having a VM that supports 2 page sizes 4k and 2M?