From owner-freebsd-performance@FreeBSD.ORG Tue Dec 24 11:02:11 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 40EF81000 for ; Tue, 24 Dec 2013 11:02:11 +0000 (UTC) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id F1A3314A3 for ; Tue, 24 Dec 2013 11:02:10 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1VvPkP-0002hy-W5 for freebsd-performance@freebsd.org; Tue, 24 Dec 2013 12:02:01 +0100 Received: from office-nat.spylog.net ([193.169.234.6]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 Dec 2013 12:02:01 +0100 Received: from citrin by office-nat.spylog.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 Dec 2013 12:02:01 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-performance@freebsd.org From: Anton Yuzhaninov Subject: Re: Apparent performance regression 8.3@ -> 8.4@r255966? Date: Tue, 24 Dec 2013 11:01:39 +0000 (UTC) Lines: 6 Sender: Anton Yuzhaninov Message-ID: References: <20131007172804.GA7641@albert.catwhisker.org> <20131011045754.GB1611@albert.catwhisker.org> X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: office-nat.spylog.net X-Comment-To: David Wolfskill User-Agent: tin/2.0.1-20111224 ("Achenvoir") (UNIX) (FreeBSD/10.0-CURRENT (i386)) X-Mailman-Approved-At: Tue, 24 Dec 2013 12:35:33 +0000 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Dec 2013 11:02:11 -0000 On Fri, 11 Oct 2013 08:57:54, David Wolfskill wrote: DW> The only hardware upgrade was to increase RAM from 6GB to 96GB, DW> which was done for all of the machines being discussed. FYI: RAM size increase can cause performance regression, probably due to decreased CPU TLB cache hit rate.