From owner-freebsd-multimedia@FreeBSD.ORG Thu Mar 1 01:59:04 2007 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id DF74116A402 for ; Thu, 1 Mar 2007 01:59:04 +0000 (UTC) (envelope-from grog@lemis.com) Received: from ext-gw.lemis.com (ext-gw.lemis.com [150.101.14.10]) by mx1.freebsd.org (Postfix) with ESMTP id 7227B13C48D for ; Thu, 1 Mar 2007 01:59:04 +0000 (UTC) (envelope-from grog@lemis.com) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.135]) by ext-gw.lemis.com (Postfix) with ESMTP id 60DAF133B94; Thu, 1 Mar 2007 12:29:03 +1030 (CST) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 5D4D71A9CBE; Thu, 1 Mar 2007 12:29:03 +1030 (CST) Date: Thu, 1 Mar 2007 12:29:03 +1030 From: Greg 'groggy' Lehey To: usleepless@gmail.com Message-ID: <20070301015903.GH18777@wantadilla.lemis.com> References: <20070228224223.5df7a556@devil.troback.com> <45E5FD0E.7040104@aem.umn.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="oxV4ZoPwBLqAyY+a" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 VoIP: sip:0871270137@sip.internode.on.net WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 Cc: FreeBSD , matt@mattsteg.com Subject: Re: Cxm and dma... X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Mar 2007 01:59:05 -0000 --oxV4ZoPwBLqAyY+a Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wednesday, 28 February 2007 at 23:14:07 +0100, Jan Branbergen wrote: > Anders, Matt, > > On 2/28/07, Matt Stegmeir wrote: >> Changing the decoder used by mythTV to ffmpeg instead of whatever the >> default was helped for me. CPU usage was still higher than expected, >> but at least things worked smoothly. >> >> usleep: what are reasonable values for CXM_SG_BUFFERS? > > check the cxm.h in the pvr250 port. > > i would just start doubling the value until the problem disappears. On the pvr250 port, I cranked it up to 10 times the number, which got rid of those problems in the application I was working on (a video camera recording system). Unfortunately, it also added an unacceptable delay in "live video" display. When I have more pressing matters fixed, I'll look at this too. Greg -- See complete headers for address and phone numbers. --oxV4ZoPwBLqAyY+a Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFF5jNnIubykFB6QiMRAqUiAKCPcej5hFaw/MQsChFGmdqumuryBwCgo+TC QLcfHK2fL/X8LFzSzXVjQKY= =+C7U -----END PGP SIGNATURE----- --oxV4ZoPwBLqAyY+a--