From owner-freebsd-current@FreeBSD.ORG Thu May 3 00:58:06 2012 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 91F00106566B; Thu, 3 May 2012 00:58:06 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: from mail-yx0-f182.google.com (mail-yx0-f182.google.com [209.85.213.182]) by mx1.freebsd.org (Postfix) with ESMTP id 37AFB8FC18; Thu, 3 May 2012 00:58:06 +0000 (UTC) Received: by yenl9 with SMTP id l9so1702712yen.13 for ; Wed, 02 May 2012 17:58:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=FUKwYALkR5tq7eyIr11FU09V46czQs+VXa3OC299OKA=; b=fAcmKMglFQxbZd4m6WdtUsGZVGkLwan9UeipRHaRZVIQPC15xoDnRWw42lbJsh5VR6 iRjC/wL+CfkrpZLnDW8Ht3yo5cubANnd1FjjGAJAWErIcgBxfhLBUJE2xEB7hBE1KZoC dCTF5z/3TVqsgDPCl/++OaFrDU/yjqn1RynTlRKxUKrjErJamtWQuCPUSYbnN6iEzLkr uYmqcfRJEVmiSfHsEvF31VR8fl6XoUKGlCHf94uJGM1CKoXrfcrQtk6qoGHCf40jG8Xj YYn/hUQ6cbQE8Iwr3vVlBSRm9FnZ37ZASXn4RMDNVgWH+3U84+sKxq1MKem/9F0HIVab Zw/Q== MIME-Version: 1.0 Received: by 10.50.194.232 with SMTP id hz8mr115119igc.38.1336006685367; Wed, 02 May 2012 17:58:05 -0700 (PDT) Sender: kmacybsd@gmail.com Received: by 10.50.129.39 with HTTP; Wed, 2 May 2012 17:58:05 -0700 (PDT) In-Reply-To: <20120502215249.GT633@sherwood.local> References: <20120502182557.GA93838@onelab2.iet.unipi.it> <20120502215249.GT633@sherwood.local> Date: Thu, 3 May 2012 02:58:05 +0200 X-Google-Sender-Auth: PsoKud2b--Af30RLbY-2r4lysso Message-ID: From: "K. Macy" To: Steven Atreju Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Cc: Luigi Rizzo , current@freebsd.org, net@freebsd.org Subject: Re: fast bcopy... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 May 2012 00:58:06 -0000 It's highly chipset and processor dependent what works best. Intel now has non-temporal loads and stores which work much better in some cases but provide little benefit in others. -Kip On Wed, May 2, 2012 at 11:52 PM, Steven Atreju wr= ote: > Luigi Rizzo wrote: >> 2. apparently, bcopy is not the fastest way to copy memory. > > http://now.cs.berkeley.edu/Td/bcopy.html > > Best Regards. > > Steven. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" --=20 =A0 =A0=93The real damage is done by those millions who want to 'get by.' The ordinary men who just want to be left in peace. Those who don=92t want their little lives disturbed by anything bigger than themselves. Those with no sides and no causes. Those who won=92t take measure of their own strength, for fear of antagonizing their own weakness. Those who don=92t like to make waves=97or enemies. =A0 =A0Those for whom freedom, honour, truth, and principles are only literature. Those who live small, love small, die small. It=92s the reductionist approach to life: if you keep it small, you=92ll keep it under control. If you don=92t make any noise, the bogeyman won=92t find you. =A0 =A0But it=92s all an illusion, because they die too, those people who roll up their spirits into tiny little balls so as to be safe. Safe?! >From what? Life is always on the edge of death; narrow streets lead to the same place as wide avenues, and a little candle burns itself out just like a flaming torch does. =A0 =A0I choose my own way to burn.=94 =A0 =A0Sophie Scholl