From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11643 invoked by alias); 10 Oct 2011 13:50:28 -0000 Received: (qmail 11625 invoked by uid 22791); 10 Oct 2011 13:50:26 -0000 X-SWARE-Spam-Status: No, hits=-2.2 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from one.firstfloor.org (HELO one.firstfloor.org) (213.235.205.2) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 10 Oct 2011 13:50:11 +0000 Received: by one.firstfloor.org (Postfix, from userid 503) id ACF0F1A9808B; Mon, 10 Oct 2011 15:50:07 +0200 (CEST) Date: Mon, 10 Oct 2011 13:54:00 -0000 From: Andi Kleen To: Richard Guenther Cc: Andi Kleen , gcc-patches@gcc.gnu.org, Andi Kleen Subject: Re: [PATCH 3/5] On a Linux kernel ask explicitely for a huge page in ggc Message-ID: <20111010135007.GV14482@one.firstfloor.org> References: <1318190141-1220-1-git-send-email-andi@firstfloor.org> <1318190141-1220-4-git-send-email-andi@firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.2i Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-10/txt/msg00768.txt.bz2 On Mon, Oct 10, 2011 at 12:15:14PM +0200, Richard Guenther wrote: > On Sun, Oct 9, 2011 at 9:55 PM, Andi Kleen wrote: > > From: Andi Kleen > > > > Benchmarks show slightly faster build times on a kernel > > build, near the measurement error unfortunately. > > > > This will only work with a recent glibc that defines MADV_HUGEPAGE. > > Will partial unmaps fail or split the page? They split the page. -Andi