From owner-freebsd-current@FreeBSD.ORG Tue Apr 15 02:09:54 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DFFB37B401 for ; Tue, 15 Apr 2003 02:09:54 -0700 (PDT) Received: from rrcs-se-24-73-205-166.biz.rr.com (rrcs-se-24-73-205-166.biz.rr.com [24.73.205.166]) by mx1.FreeBSD.org (Postfix) with SMTP id CE93143F93 for ; Tue, 15 Apr 2003 02:09:53 -0700 (PDT) (envelope-from wade@ezri.org) Received: (qmail 85428 invoked from network); 15 Apr 2003 09:09:53 -0000 Received: from unknown (HELO ezri.org) (192.168.0.46) by rrcs-se-24-73-205-166.biz.rr.com with SMTP; 15 Apr 2003 09:09:53 -0000 Message-ID: <3E9BCC5F.4050603@ezri.org> Date: Tue, 15 Apr 2003 05:09:51 -0400 From: Wade Majors User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030414 X-Accept-Language: en-us, en MIME-Version: 1.0 To: current@freebsd.org Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: Adjusting pcm buffersize? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Apr 2003 09:09:54 -0000 Hi, I am having problems with my soundcard that I think might be fixable by increasing the buffersize, but the sysctl that reports the buffersize is readonly. Basically, even when there is relativly mild hard disk access (like a large cvsup) I start to get underruns (as reported by a verbose /dev/sndstat). CPU usage is nowhere near 100% yet the sound card is starved. I have tried tweaking everything possible in with my motherboard's BIOS with regards to PCI, AGP, and SDRAM read/writes to no avail. Any ideas? -Wade