Date: Thu, 1 Mar 2007 12:29:03 +1030 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: usleepless@gmail.com Cc: FreeBSD <freebsd-multimedia@freebsd.org>, matt@mattsteg.com Subject: Re: Cxm and dma... Message-ID: <20070301015903.GH18777@wantadilla.lemis.com> In-Reply-To: <c39ec84c0702281414u1a882a5dq100ce080c60aab67@mail.gmail.com> References: <20070228224223.5df7a556@devil.troback.com> <c39ec84c0702281402g3c3915eag8200ec92e82312fe@mail.gmail.com> <45E5FD0E.7040104@aem.umn.edu> <c39ec84c0702281414u1a882a5dq100ce080c60aab67@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--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 <steg0044@aem.umn.edu> 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--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070301015903.GH18777>