From owner-freebsd-performance@FreeBSD.ORG Thu Jun 13 11:32:48 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 38D0B2DF for ; Thu, 13 Jun 2013 11:32:48 +0000 (UTC) (envelope-from feld@feld.me) Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by mx1.freebsd.org (Postfix) with ESMTP id 0C13F179E for ; Thu, 13 Jun 2013 11:32:47 +0000 (UTC) Received: from compute2.internal (compute2.nyi.mail.srv.osa [10.202.2.42]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id C1F4F2093F for ; Thu, 13 Jun 2013 07:32:41 -0400 (EDT) Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute2.internal (MEProxy); Thu, 13 Jun 2013 07:32:41 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=feld.me; h= content-type:to:subject:references:date:mime-version :content-transfer-encoding:from:message-id:in-reply-to; s= mesmtp; bh=5xxAU9/F3ieRHBIpCG6UgkONg6A=; b=ZNsYwMCOzVjSp4dBRwJqJ cKZjbcg9Fym7x9iBEjv91GNP75qYmYrd7dOT7/uo4n7oDpeif1mVkUG4M/6U9AF6 StPYhPIOo2nutLXL72qE/FrGE6P166fc6GiIHEN/pY3ET6g7zkn4IaxZyVy4xtL1 jSnrhD0a7t+v0rmiNqdlew= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-type:to:subject:references:date :mime-version:content-transfer-encoding:from:message-id :in-reply-to; s=smtpout; bh=5xxAU9/F3ieRHBIpCG6UgkONg6A=; b=Hb+g 9ZJK0qN9qCeS3Yqe7Afm5dnAtk5ayNcFOHwCcAq+WkZXQCFpvcKxXakwcHYSD/dR Fv2QRcqENOm3wjv3IFycon1lZeCipKMvGb6emuD550WGGsJ0VkmttP7HvWAhMDW5 axF6nWF/bAGrxtllclNE2EcKrcibQWL8uKevIN0= X-Sasl-enc: fyM221nkNbflCSs8S6OaJlVBSkV35qof+WipTF4rrwBt 1371123161 Received: from markf.office.supranet.net (unknown [66.170.8.18]) by mail.messagingengine.com (Postfix) with ESMTPA id 8A3CA680286 for ; Thu, 13 Jun 2013 07:32:41 -0400 (EDT) Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes To: "freebsd-performance@freebsd.org" Subject: Re: Scaling and performance issues with FreeBSD 9 (& 10) on 4 socket systems References: <20130612225849.GA2858@dragon.NUXI.org> Date: Thu, 13 Jun 2013 06:32:41 -0500 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: "Mark Felder" Message-ID: In-Reply-To: <20130612225849.GA2858@dragon.NUXI.org> User-Agent: Opera Mail/12.15 (FreeBSD) X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Jun 2013 11:32:48 -0000 On Wed, 12 Jun 2013 17:58:49 -0500, David O'Brien wrote: > We found FreeBSD 8.4 to perform better than FreeBSD 9.1, and Linux > considerably better than both on the same machine. http://svnweb.freebsd.org/base?view=revision&revision=241246 The above link is likely why 8.4 is better than 9.1 on the same machine. > We've tried various things and haven't been able to explain why FreeBSD > isn't scaling on the new hardware. Nor why it performs so much worse > than FreeBSD on the older "M2" machines. The CPUs between those machines are quite different. I'm sure we're looking at different cache sizes, different behavior for the hyperthreading, etc. I'm sure others would be greatly interested in you providing the same benchmark results for a recent snapshot of HEAD as well.