Date: Thu, 26 Apr 2001 10:52:25 +0200 (CEST) From: Søren Schmidt <sos@freebsd.dk> To: Bjarne Wichmann Petersen <mekanix@vip.cybercity.dk> Cc: freebsd-questions@FreeBSD.ORG, freebsd-multimedia@FreeBSD.ORG Subject: Re: dma-trouble Message-ID: <200104260852.f3Q8qQa19950@freebsd.dk> In-Reply-To: <200104260831.KAB41824@usr01.cybercity.dk> "from Bjarne Wichmann Petersen at Apr 26, 2001 10:33:49 am"
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It seems Bjarne Wichmann Petersen wrote: > On Thu, 26 Apr 2001 09:46:07 +0200 > Bjarne Wichmann Petersen <mekanix@vip.cybercity.dk> wrote: > > > Xine skips a lot of frames though but it's not due a slow CPU, it only > > eats up 50%-60%. Rest is idling. > > I think I've spotted the bottleneck. But I don't know how to fix it. > > Playing off the dvd-drive and I get a thoroughput at ~2MB/s. Copying off > the dvd-drive it's up to about ~20-25 MB/s (UDMA33). And playing off the > harddrive CPU becomes the bottleneck (as it should) and thus only skips a > "few" frames. > > Copying and playing of the dvd-drive simultaniously gives a thoroughput at > ~2MB/s and makes movies unplayable. It's as if xine fix the drive at a to > slow speed (1x?). Can I fix this somehow? Are you using DMA on the DVD drive ? if not try to enable it but its not garantied to work unfortunately (depends on hardware support for ATAPI DMA working) -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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