Date: Wed, 28 Feb 2007 23:14:07 +0100 From: usleepless@gmail.com To: matt@mattsteg.com Cc: FreeBSD <freebsd-multimedia@freebsd.org> Subject: Re: Cxm and dma... Message-ID: <c39ec84c0702281414u1a882a5dq100ce080c60aab67@mail.gmail.com> In-Reply-To: <45E5FD0E.7040104@aem.umn.edu> References: <20070228224223.5df7a556@devil.troback.com> <c39ec84c0702281402g3c3915eag8200ec92e82312fe@mail.gmail.com> <45E5FD0E.7040104@aem.umn.edu>
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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. if it doesn't, there might me a concurrency/locking problem in the driver. this could very well be ( i suspect a particular fishy part of code ). if this is the case, we need to investigate into that. regards, usleep
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