From owner-freebsd-hackers@FreeBSD.ORG Sun Jun 28 22:28:48 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 294DD1065674; Sun, 28 Jun 2009 22:28:48 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojteks.tensor.gdynia.pl (wojteks.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id E7EF98FC17; Sun, 28 Jun 2009 22:28:46 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::2]) by wojteks.tensor.gdynia.pl (8.14.3/8.14.3) with ESMTP id n5SMSnJ9014018; Mon, 29 Jun 2009 00:28:49 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [127.0.0.1]) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3) with ESMTP id n5SMPKg7037505; Mon, 29 Jun 2009 00:25:20 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3/Submit) with ESMTP id n5SMPK1N037502; Mon, 29 Jun 2009 00:25:20 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Mon, 29 Jun 2009 00:25:20 +0200 (CEST) From: Wojciech Puchar To: alc@freebsd.org In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-hackers@freebsd.org Subject: Re: large pages (amd64) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Jun 2009 22:28:48 -0000 > > other question - tried enabling it on my i386 laptop (256 megs ram), always > mappings==0, while promitions>demotions>0. > > > The default starting address for executables on i386 is not aligned to a 2/4MB page boundary. > Hence, "mappings" are much less likely to occur. > > > certainly there are apps that could be put on big pages, gimp editing 40MB bitmap for > example > > > Regards, > Alan > > > how can i check how much (or maybe - what processes) 2MB pages are actually allocated?