Date: Thu, 26 Apr 2001 12:40:12 +0200 (CEST) From: Søren Schmidt <sos@freebsd.dk> To: Bjarne Wichmann Petersen <bjarne@mekanix.dk> Cc: mekanix@vip.cybercity.dk, freebsd-questions@FreeBSD.ORG, freebsd-multimedia@FreeBSD.ORG Subject: Re: dma-trouble Message-ID: <200104261040.f3QAeC046264@freebsd.dk> In-Reply-To: <20010426112328.5adbf42f.bjarne@mekanix.dk> "from Bjarne Wichmann Petersen at Apr 26, 2001 11:23:28 am"
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It seems Bjarne Wichmann Petersen wrote: > On Thu, 26 Apr 2001 10:52:25 +0200 (CEST) > Søren Schmidt <sos@freebsd.dk> wrote: > > > 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) > > $ sysctl hw.atamodes > hw.atamodes: dma,dma,dma,dma, > > Should be enabled. > > Copying off the drive and it reads with ~13 MB/s but playing a VOB-file > it's down to ~2 MB/s. And if I try to copy at the same time with playback > it's still down to ~2 MB/s and the playback halts. Wierd, there is no way xine can change the speed of the drive, the ATA driver has no hooks for that :) However, a fast drive could also be a problem in that it is forced to reseek often because it gets ahead of what you want to read, that will have a big impact on streaming speed... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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