From owner-freebsd-questions@FreeBSD.ORG Sun Jun 25 14:10:02 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AEFDE16A402 for ; Sun, 25 Jun 2006 14:10:02 +0000 (UTC) (envelope-from simon@bollo.16hz.net) Received: from bollo.16hz.net (bollo.16hz.net [82.71.120.73]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5196343D6B for ; Sun, 25 Jun 2006 14:09:59 +0000 (GMT) (envelope-from simon@bollo.16hz.net) Received: from bollo.16hz.net (simon@localhost.16hz.net [127.0.0.1]) by bollo.16hz.net (8.13.4/8.13.4) with ESMTP id k5PE9tNE011635 for ; Sun, 25 Jun 2006 15:09:55 +0100 (BST) Received: (from simon@localhost) by bollo.16hz.net (8.13.4/8.13.4/Submit) id k5PE9tYq005788 for freebsd-questions@freebsd.org; Sun, 25 Jun 2006 15:09:55 +0100 (BST) Date: Sun, 25 Jun 2006 15:09:55 +0100 From: Simon Morgan To: freebsd-questions@freebsd.org Message-ID: <20060625140955.GA4182@bollo.16hz.net> References: <20060625110028.GA14664@bollo.16hz.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060625110028.GA14664@bollo.16hz.net> User-Agent: Mutt/1.5.11 Subject: Re: Disk Activity Causes Video Stuttering X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Jun 2006 14:10:02 -0000 On Sun, Jun 25, 2006 at 12:00:28PM +0100, Simon Morgan wrote: > I'm having trouble with mplayer that seems to be highlighting a bug or general > inefficiency in the ata driver when used with the VIA VT8235 chipset used in > the ASUS A7V8X motherboard. > > The problem is that whenever a video is being played and there is any > reasonable amount of disk activity (e.g dd if=/dev/urandom of=test), the video > skips and the mplayer status shows that it's had to drop frames to keep the > video and audio in sync. I've made some discoveries that discredit my previous assertion that the ata driver is to blame. I created a memory disk using mdconfig and copied a video to it and still got dropped frames when when performing the above command. I had somebody who owns a different motherboard but which uses the same IDE chipset to perform the same steps and he didn't experience any dropped frames. -- Never let your schooling interfere with your education.