From owner-freebsd-questions@FreeBSD.ORG Fri Dec 19 07:35:37 2014 Return-Path: Delivered-To: freebsd-questions@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 2D1B52EE; Fri, 19 Dec 2014 07:35:37 +0000 (UTC) Received: from mail-wi0-x234.google.com (mail-wi0-x234.google.com [IPv6:2a00:1450:400c:c05::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B121418D3; Fri, 19 Dec 2014 07:35:36 +0000 (UTC) Received: by mail-wi0-f180.google.com with SMTP id n3so800782wiv.13; Thu, 18 Dec 2014 23:35:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Ossn9MHsboVbJB4H2Uf60yLJunEBdg6fabX+dggLGZg=; b=tuFklD2Sg5gLbl45UetGNbSETT4/5NAIfzfk6AdaLcLcUuDK4vi+w+uvGaGCLFwsMJ 970iFUwFrpnHEPsqNjp2uw99dgfYq+W7uwsawD7Ga7FXx2HGLGdHxsD2LhSzrMA0ge80 V8eNCIcDHnHwMIJjE7xJH5wMUwbt0gyYJRSC63pl7cWjfmpALBPVhXc1NXGOrRW4yUsF Pa9T5B7h4iUhd7Cyra/cuUnPgPYweZWTkyV2pm9kqyIFHUwb+UXwMTyXSS5CkO3P5aNV j42ICC2Dt0hpeoUHKPZ8OX6xIn+KIO5EZH02ctoHRwrd/2DE6egxrlCXV7+y9AM1iUbw ObCw== MIME-Version: 1.0 X-Received: by 10.194.92.37 with SMTP id cj5mr11731812wjb.81.1418974535090; Thu, 18 Dec 2014 23:35:35 -0800 (PST) Received: by 10.216.106.134 with HTTP; Thu, 18 Dec 2014 23:35:35 -0800 (PST) In-Reply-To: References: <20141208153925.5df90587@prometheus> Date: Fri, 19 Dec 2014 02:35:35 -0500 Message-ID: Subject: Re: HyperThreading on Intel Xeon Haswell, a benefit? From: grarpamp To: FreeBSD Mailing Lists Content-Type: text/plain; charset=UTF-8 Cc: FreeBSD Questions , "freebsd-hardware@freebsd.org" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Dec 2014 07:35:37 -0000 On Thu, Dec 18, 2014 at 11:44 PM, Jia-Shiun Li wrote: > You really need your own evaluation methods for your own real world workload. Of course. Yet many users here might like to compare common things: o make buildworld times o iozone if disks are not limiting factor o openssl speed as below o etc > See if this extreme case motivates you. Not much since it provides no information regarding HTT. It doesn't, at minimum: o State whether HTT was on or off. o Show the results of two runs, one with HTT on, one with HTT off.