From owner-freebsd-current@FreeBSD.ORG Sun Jul 18 19:21:42 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 045CB106564A for ; Sun, 18 Jul 2010 19:21:42 +0000 (UTC) (envelope-from fabiokaminski@gmail.com) Received: from mail-qy0-f182.google.com (mail-qy0-f182.google.com [209.85.216.182]) by mx1.freebsd.org (Postfix) with ESMTP id B3EAB8FC1E for ; Sun, 18 Jul 2010 19:21:41 +0000 (UTC) Received: by qyk7 with SMTP id 7so2086114qyk.13 for ; Sun, 18 Jul 2010 12:21:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=2x28uP5d3Tw7f4JWtqXQX93Zk4EjJ7Hgse1T5C2Tmc8=; b=wzkiF4rCuqh/Rrf7xFdR6iCECdRK//sujUkXkzO6RTz8AU1b+RI76f1Ktz3sIUllz+ +aSx+G8R2SUJclTT1l7fYvWn62lKb6tCmtZQUnih2XSk568bOeUhdPIiN4QUQc0zqSrh jJH/sZALw0BaW/qjmXuKRV+Trf6MQHVMQdMZw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=TvPBMO3JC/74xDiP/DXjrTgRI7mK2di1Z1jHQut0fBrtAM26oCHpF+29XNrmW+ZRPu ss43eoXmtq13Tw8KfMSnFW25iPO8prUVAeUJ4rLwPUzJdA35nwRWfFFXZ+CxAnsTeMd1 rW3RrqrGp1O0Gkll2NSAh7aLq8jngXdOeCQiU= MIME-Version: 1.0 Received: by 10.224.59.145 with SMTP id l17mr3200712qah.287.1279480900848; Sun, 18 Jul 2010 12:21:40 -0700 (PDT) Received: by 10.229.228.199 with HTTP; Sun, 18 Jul 2010 12:21:40 -0700 (PDT) Date: Sun, 18 Jul 2010 16:21:40 -0300 Message-ID: From: Fabio Kaminski To: freebsd-current@freebsd.org X-Mailman-Approved-At: Sun, 18 Jul 2010 19:29:10 +0000 Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: emt64 performance degradation over amd64 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: Sun, 18 Jul 2010 19:21:42 -0000 Hello list, im running two freebsd dists , each one in a diferent notebook.. i have a freebsd 8.1 rc2 running in amd64 with 2 cores 2MB mem.. (my old hp), and a freebsd 9-current running on a intel i3 (2 cores + 2 logical cores) with 4 MB ram.. and im was noting that the amd notebook was performing really fast compared to the i3.. even with for each core of i3 the clock been superior to the amd that i got here... i was looking to the kernel build and disable all the debug options from the 9 / kernel before the SMP option.. to see if it was the performance penalty cause... but that doesnt help to much... i didnt find any cpu flag to build the kernel specific to the intel arquitecture and leave the HAMMER option alone, knowing that emt64 and amd64 pretty the same thing... what could be happening... the biggest number of cores? .. or its a common thing... freebsd perform better on amd hardware... (note that i cant be too precise , since i didnt go any further with more tests... its more a subjective feel (boot time, general use.. etc)) Thanks, Fabio Kaminski