From owner-freebsd-current@FreeBSD.ORG Fri Mar 27 20:29:22 2015 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0061CEE6; Fri, 27 Mar 2015 20:29:21 +0000 (UTC) Received: from mail-ig0-x232.google.com (mail-ig0-x232.google.com [IPv6:2607:f8b0:4001:c05::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B82A7D9; Fri, 27 Mar 2015 20:29:21 +0000 (UTC) Received: by igbqf9 with SMTP id qf9so30085650igb.1; Fri, 27 Mar 2015 13:29:20 -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:message-id:subject :from:to:cc:content-type; bh=hpb9ZYiYRqcadZ4s0Bc//fEHWUnb8pLeK2dhni+0Lv8=; b=l2039C7LRsvjKFfL9Kok13bXJ3Ixy6K6wpcw5qXlyaHBkP+7G63L5a3zGTcQiogQZy nNZLuu/D+XZql0oAduNUf7CbAFLXH45tQORgE5FN6lKAxFK0dPHKv4FPIQ/oiIzBZlOg sn/M9kSZwYuqHrKsgoMy5s60KC6nXb1lEFzqHYowxAH8S2wwTvM3ImBF6tQ0DajcF7Wj UgzMypKzr1HAJsw9FzCHD7UlEW41xisXzumA0CKpAyxccRkLDST0ZAMd5+yJVsYN/vsu wKSZGZrolip39k5LGSo5CQ70o3o2C1TYP7cGeGkJ/0PgFS0wZrAHza5sCDEvQhpn4XKG sX5g== MIME-Version: 1.0 X-Received: by 10.50.143.42 with SMTP id sb10mr905530igb.49.1427488160609; Fri, 27 Mar 2015 13:29:20 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.36.17.194 with HTTP; Fri, 27 Mar 2015 13:29:20 -0700 (PDT) In-Reply-To: <5515AED9.8040408@FreeBSD.org> References: <5515AED9.8040408@FreeBSD.org> Date: Fri, 27 Mar 2015 13:29:20 -0700 X-Google-Sender-Auth: MgFXCS5mBruPrnyD41mzR0ldZQw Message-ID: Subject: Re: SSE in libthr From: Adrian Chadd To: Eric van Gyzen Content-Type: text/plain; charset=UTF-8 Cc: "current@freebsd.org" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 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: Fri, 27 Mar 2015 20:29:22 -0000 Wow. I remember seeing this in the work application - all packet pushing in userland, but there are locks being acquired. I was wondering what exactly was triggering the FPU save/restore code. Now I know. Yes, if there are no other objections, I'd love to see this in -HEAD and stable/10. -adrian