From owner-freebsd-stable@FreeBSD.ORG Thu Nov 29 19:06:12 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AB01B16A475 for ; Thu, 29 Nov 2007 19:06:12 +0000 (UTC) (envelope-from mattjreimer@gmail.com) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.178]) by mx1.freebsd.org (Postfix) with ESMTP id 6766713C458 for ; Thu, 29 Nov 2007 19:06:12 +0000 (UTC) (envelope-from mattjreimer@gmail.com) Received: by py-out-1112.google.com with SMTP id u77so4345433pyb for ; Thu, 29 Nov 2007 11:06:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=xclyKAzAleYp3OG2rFQucmDrn8xWDX8H7TzZaGB+6ZY=; b=g8yQ83JJax4pCiKDLg/bR/VTodPmSdee02/g/DD1yb/wYCjbLJyWkzx6FpgfNS5biHT5a43wOfnFucIqwRwJBT/JKCmQed4te/2x34QqwrYVD/TK54bJ/Pz1+E2CHPyeMIs+Tl3tow4gWFZezakbZ1RBY2DJg5kLIt+Jl/6j/7U= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=PrCG0UXZVqy3qCOb1JN53vZBARUUH21X0Lp7rraxjMt/phraLURTgSuUzrWtIkPkEBfUrH/Nf/jzgHwigzH4rpR1ln54aiJVU/bks3PZ4Ze34+GotDOApDU7jDLiDDbsZyg6U1iBEJ36cdXcYPtSgAyzw6U3al7lYCaESJEdE1w= Received: by 10.35.115.18 with SMTP id s18mr418386pym.1196363164445; Thu, 29 Nov 2007 11:06:04 -0800 (PST) Received: by 10.35.58.11 with HTTP; Thu, 29 Nov 2007 11:06:04 -0800 (PST) Message-ID: Date: Thu, 29 Nov 2007 11:06:04 -0800 From: "Matt Reimer" To: "Kris Kennaway" In-Reply-To: <474F0BDF.8070605@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <474F0BDF.8070605@FreeBSD.org> Cc: freebsd-stable@freebsd.org, Pete French Subject: Re: Also seeing 2 x quad-core system slower that 2 x dual core X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Nov 2007 19:06:12 -0000 On Nov 29, 2007 10:58 AM, Kris Kennaway wrote: > Pete French wrote: > > On the dual core processors this takes about 20 seconds. On the quad > > cores it takes about 3 minutes! This is true for both the 32 and 64 bit > > versions of FreeBSD :-( > > That almost certainly has nothing to do with how many CPUs your system > has, since rm -rf is a single process running on a single core. I wonder if I'm seeing this too. Running super-smack on a 2 x quad core 1.6GHz Dell 1950 I get about 40000 qps, whereas on a 2 x dual core 3.0GHz box I've seen 80000 qps. Is this expected? Matt CPU: Intel(R) Xeon(R) CPU E5310 @ 1.60GHz (1595.94-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x6f7 Stepping = 7 Features=0xbfebfbff Features2=0x4e33d AMD Features=0x20100800 AMD Features2=0x1 Cores per package: 4 usable memory = 8577105920 (8179 MB) avail memory = 8289787904 (7905 MB) ---- CPU: Intel(R) Xeon(R) CPU 5160 @ 3.00GHz (3000.02-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6 Features=0xbfebfbff Features2=0x4e3bd,DCA> AMD Features=0x20100800 AMD Features2=0x1 Cores per package: 2 usable memory = 17170817024 (16375 MB) avail memory = 16629559296 (15859 MB)