linux-kernel - Re: [Bugme-new] [Bug 7027] New: CD Ripping speeds slow with 2.6.17

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Message-ID: <44E89BBA.9090809@gmail.com>
Date:	Sun, 20 Aug 2006 13:28:26 -0400
From:	Ryan Newberry <brnewber@...il.com>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
CC:	Mike Galbraith <efault@....de>, Ingo Molnar <mingo@...e.hu>,
	Martin Bligh <mbligh@...igh.org>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...l.org>
Subject: Re: [Bugme-new] [Bug 7027] New: CD Ripping speeds slow with 2.6.17

Jan Engelhardt wrote:
>>>> I'm skeptical.  Is the source for this application available?  I'd like
>>>> to see this problem.
>>>>         
>>> (never mind.  saw your other post, found source)
>>>       
>> Hm.  I can't get better than 1.4x rip speed out of it with a stock SuSE
>> 10.1 kernel (2.6.16).  It's also using truckloads of cpu, whereas the CD
>> rippers that came with this distro use a percent or two.
>>     
>
> What command did you use to rip?
>
>
>
> Jan Engelhardt
>   
The ripper he's using is ripoff I assume (source code here: 
http://prdownloads.sourceforge.net/ripoffc/ripoff-0.8.tar.gz?download  
extraction functionality contained in src/RipOffExtractor.c) . It uses 
libparanoia to do its job, like the cdparanoia command. On my system, 
ripoff has high CPU usage with a 2.6.16 kernel as well, but it reports a 
9.0x rate on average.
Could the fact that it has such high CPU usage be a possible reason I am 
experiencing a slower ripping speed (1.2x) when the patch that was git 
bisected is applied?

-- 
Ryan Newberry
http://ripoffc.sourceforge.net
"All mankind is divided into three classes: those that are immovable, those that are movable, and those that move." - Benjamin Franklin

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