From owner-freebsd-stable@FreeBSD.ORG Thu Jul 19 15:29:04 2012 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 D7C15106564A; Thu, 19 Jul 2012 15:29:04 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-pb0-f54.google.com (mail-pb0-f54.google.com [209.85.160.54]) by mx1.freebsd.org (Postfix) with ESMTP id 9A8AC8FC12; Thu, 19 Jul 2012 15:29:04 +0000 (UTC) Received: by pbbro2 with SMTP id ro2so4931136pbb.13 for ; Thu, 19 Jul 2012 08:29:04 -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 :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=hNgBHsiYhqRuJCqpYBw1V5YQ/PjeIEPFdikZe0Yz2Jk=; b=tL9rK9zQ+VZxcoeYHavJxCI3pUFprfKbnxVZpOpKvcFZh7hvQ8m+58iTSBij4KN6Ik RwW+9x1ILcRJLEtveIcgd0lVjBFCE/vm9sRhLn6bQC4nM1CiwxI0d0E6CXXwDVP3kpIW 6VvR615zI+BULSge8n8FaCqBuSkEeNqudanK2FPRZLtv6DUJMwZkX9wr1JiGrylskp6n owwtWwlmaGSgvCXQbSTP7BZTj+z0crno94+WA1l78WYC8WMb7sD7a70dYr5OOoS3WdaY TrqlI+RIG6Q7kxz/2UJQbX/fhR1AuLFhyduR2L2F++dycwcsAlFSSY23eB67BTHtCL+l U5gQ== MIME-Version: 1.0 Received: by 10.68.221.70 with SMTP id qc6mr6223764pbc.92.1342711744379; Thu, 19 Jul 2012 08:29:04 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.68.191.138 with HTTP; Thu, 19 Jul 2012 08:29:04 -0700 (PDT) In-Reply-To: References: <4FDABA0B.5030702@greatbaysoftware.com> <4FFF34BA.9030002@greatbaysoftware.com> <4FFF9A50.40006@greatbaysoftware.com> <201207130939.54311.jhb@freebsd.org> <5005CD83.306@greatbaysoftware.com> Date: Thu, 19 Jul 2012 08:29:04 -0700 X-Google-Sender-Auth: 2AZdvaCY7SP7Kc6j0dlEszomj_Y Message-ID: From: Adrian Chadd To: Steve McCoy Content-Type: text/plain; charset=ISO-8859-1 Cc: Charles Owens , Alexander Motin , freebsd-stable@freebsd.org, John Baldwin Subject: Re: mfi(4) IO performance regression, post 8.1 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, 19 Jul 2012 15:29:05 -0000 Oh, and would you please file a PR for this? I've been looking into ACPI related slowdowns for a while and I'm glad you found a culprit. Adrian