From owner-freebsd-stable@FreeBSD.ORG Mon Apr 12 23:34:37 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1D16D1065670 for ; Mon, 12 Apr 2010 23:34:37 +0000 (UTC) (envelope-from maho.nakata@gmail.com) Received: from mail-gw0-f54.google.com (mail-gw0-f54.google.com [74.125.83.54]) by mx1.freebsd.org (Postfix) with ESMTP id A22128FC0A for ; Mon, 12 Apr 2010 23:34:36 +0000 (UTC) Received: by gwaa12 with SMTP id a12so3422930gwa.13 for ; Mon, 12 Apr 2010 16:34:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:date:message-id:to:cc :subject:from:in-reply-to:references:x-mailer:mime-version :content-type:content-transfer-encoding; bh=yN7kZ9KMkTiOkXSw3VaBVAsWza9g/Q1SL64ANzqY+h0=; b=DoN9d7BTH1sKRZ3Gxu47Lq9YeZBqyF2wvIEtL21OTHecTcHYSv8EI8oqjGTYBBkCO+ nF52K0ewxIKDnw7hC2EBi22An37ouUrWUmVlV0qzFhW0pGMun9yRi4PX28LS5cNFXV8J iv4iE5H85ZzZtLeQj7+wF9KkS1Pissfuxn+ZQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:date:message-id:to:cc:subject:from:in-reply-to:references :x-mailer:mime-version:content-type:content-transfer-encoding; b=u2TuIVv9k4dF8Mp4Cv9eauy9aKpVRyA2DYQhYG4YX2JyRrmWC7QAx0exsXbRt7A7gU GFgQmfTppAz7MNBmgspZ+e72NwN33CfQ9odwko8TeEpdXm2MqERIkNUuNouJrPfnCB50 sjbau7K0KJzT2jfFnMs13XUIA8DbvSjT4/+tk= Received: by 10.150.244.8 with SMTP id r8mr4506203ybh.206.1271115275771; Mon, 12 Apr 2010 16:34:35 -0700 (PDT) Received: from localhost (rikad42.riken.jp [134.160.214.42]) by mx.google.com with ESMTPS id 6sm1217006yxg.30.2010.04.12.16.34.33 (version=SSLv3 cipher=RC4-MD5); Mon, 12 Apr 2010 16:34:34 -0700 (PDT) Sender: Maho NAKATA Date: Tue, 13 Apr 2010 08:34:31 +0900 (JST) Message-Id: <20100413.083431.468378203492543907.chat95@mac.com> To: freebsd@jdc.parodius.com From: Maho NAKATA In-Reply-To: <20100412150023.GA80292@icarus.home.lan> References: <20100412.131213.4959786962516027.chat95@mac.com> <4BC3311F.5060503@icyb.net.ua> <20100412150023.GA80292@icarus.home.lan> X-Mailer: Mew version 6.3 on Emacs 23.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org, avg@icyb.net.ua Subject: Re: Only 70% of theoretical peak performance on FreeBSD 8/amd64, Corei7 920 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Apr 2010 23:34:37 -0000 Hi Andriy and Jeremy In my case, % sysctl vm.pmap.pg_ps_enabled vm.pmap.pg_ps_enabled: 1 thanks a lot! From: Jeremy Chadwick Subject: Re: Only 70% of theoretical peak performance on FreeBSD 8/amd64, Corei7 920 Date: Mon, 12 Apr 2010 08:00:23 -0700 > On Mon, Apr 12, 2010 at 05:41:35PM +0300, Andriy Gapon wrote: >> Perhaps, he talks about support of large pages (2M) and related improvements in >> TLB performance. If so, he (and you) may read about 'superpages' feature of FreeBSD. >> I am not sure if it is enabled by default in 8.0, you can check vm.pmap.pg_ps_enabled. > > On 8.0-RELEASE and later, they are. Line 183: > > http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/amd64/amd64/pmap.c?annotate=1.667.2.12 > > Commit where they got enabled by default (approx. 16 months ago): > > http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/amd64/amd64/pmap.c#rev1.646 > > -- > | Jeremy Chadwick jdc@parodius.com | > | Parodius Networking http://www.parodius.com/ | > | UNIX Systems Administrator Mountain View, CA, USA | > | Making life hard for others since 1977. PGP: 4BD6C0CB | > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >