[G4] iTunes Speed/Performance Feedback

[Mel]

k,
I rip using a 48x24x48 FireWire CD-RW drive. The internal Superdrive 
was much slower. I use MP3 at 192kbps, VBR, which may slow it down a 
little. I would love to see an analysis of what the choke points are 
for this operation from someone who really knows the architecture.
Mel

On Monday, May 26, 2003, at 04:10  PM, Kunga wrote:

> Running a 7200 RPM 100GB WD inside the 500 MHz Cube. The optical on 
> your 933 may be your bottleneck. I'm surprised to hear you're only 
> getting 14x on a 933. AAC @ 192 kbps?
>
> k
> Also from another list:
>
> Kunga, not all computational processes are amenable to parallel
> implementations.  I would expect compression to be about as bad as 
> that could
> get because what you do next depends on everything you've done prior, 
> the worst
> possible scenario for parallelizing a process.
>
> It's more a situation of invention than one of repair (as in "fix it") 
> and would
> depend a lot on the codec.  One would hope that AAC, being a newer 
> codec design,
> would have been had parallel impelementation in mind but I've not read 
> that
> anywhere.
>
>
> Bob
>
> On Monday, May 26, 2003, at 01:59 PM, Mel wrote:
>
>>  Your Cube has only a 100 MHz bus and a 5400 rpm disk drive (if it's 
>> still stock) which adds more of a bottleneck. Now, a 1.2 GHz 
>> processor may give you some boost, but since I don't see much faster 
>> operation on a machine with a 133 MHz bus and a 7200 rpm drive, the 
>> problem may be more with the ripping operation than the processor.
>
>
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