linux-kernel - Re: Again... DMA speed too slow

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Message-ID: <48038c3e.P3RWjRNXsDrhjIX7%Joerg.Schilling@fokus.fraunhofer.de>
Date:	Mon, 14 Apr 2008 18:54:22 +0200
From:	Joerg.Schilling@...us.fraunhofer.de (Joerg Schilling)
To:	htejun@...il.com, linux-kernel@...r.kernel.org
Subject: Re: Again... DMA speed too slow

>Which controller are you on?  I bet the recording itself will work fine
>on 48x.  It's probably that READ/WRITE BUFFERs are executed using PIO
>for compatibility reasons. 

If this happens inside Linux, Linux should be changed...

but note that wodim is based on 3 year old cdrecord code and cdrecord
is constantly evolving. A lot of problems in cdrecord have been fixed during 
the last years while wodim still uses the old code. If you like to judge you 
first should upgrade to a recent original cdrtools from:

ftp://ftp.berlios.de/pub/cdrecord/alpha/

2.01.01a38 is the latest. Install cdrecord suid root and try again.

Jörg

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