From owner-freebsd-performance@FreeBSD.ORG Fri Oct 11 05:20:55 2013 Return-Path: Delivered-To: performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 367278CB for ; Fri, 11 Oct 2013 05:20:55 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qc0-x233.google.com (mail-qc0-x233.google.com [IPv6:2607:f8b0:400d:c01::233]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id EA91B26D7 for ; Fri, 11 Oct 2013 05:20:54 +0000 (UTC) Received: by mail-qc0-f179.google.com with SMTP id l4so2580086qcv.24 for ; Thu, 10 Oct 2013 22:20:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=Hrh2y09H1d4lOQKBfdMER/oABW2piKRkqIDzNDn4izY=; b=LDzYcDnJur5CXIHoIfZV9QfwbEa0vbmm5KsFvAm9KM+wwb0kTVsQFLNoMLUtN5STHr 2+o2r9MNM+VtNzSywN9k3HP7hNQkzzgdXJ+G84uR5FZgZ0R/G2Ska8ngHMgX7jWN6CYQ sZdHLJich8Y+ln9UBujbcWQDR3nODzB8ushZaCKQcrbLmvt8P+uCZKwvl3nwFqE97x4r MPZH70X+VVpWqh2u9l4iDmWD38feVsob7p0vA4IVjZvDzimMH6CS6i9tiItrcPa+akTr gRoWLaLdUd/2G8I320jaRsDjCZZYoiwOvV4j3sCRVKcpmf7kXlRCGQWDFqJOmh0Mterz Qmmg== MIME-Version: 1.0 X-Received: by 10.49.3.3 with SMTP id 3mr5357265qey.56.1381468854137; Thu, 10 Oct 2013 22:20:54 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.207.66 with HTTP; Thu, 10 Oct 2013 22:20:53 -0700 (PDT) In-Reply-To: <20131007194405.GP1611@albert.catwhisker.org> References: <20131007172804.GA7641@albert.catwhisker.org> <172AF9A7-53F7-42CF-A164-084CFB418EE9@cederstrand.dk> <20131007194405.GP1611@albert.catwhisker.org> Date: Thu, 10 Oct 2013 22:20:53 -0700 X-Google-Sender-Auth: _v8IvblGbRftXjOAMBAouZfgZsQ Message-ID: Subject: Re: Apparent performance regression 8.3@ -> 8.4@r255966? From: Adrian Chadd To: David Wolfskill Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: performance@freebsd.org, Erik Cederstrand 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: Fri, 11 Oct 2013 05:20:55 -0000 Hi David, How about just picking a revision of stable/8 half way between the good and not good version, then re-test? It'd help to narrow down the range of commits that could've caused problems. -adrian