The Logic Off Topic list

You guys still don't understand the impact of OS X. You can't compare dual
processors under OS 9 and OS X since one is the old Mac OS and the other has
a UNIX kernel and is multithreaded to take full advantage of both processors
dynamically. My understanding is that there is almost a doubling of power
using two processors as long as OS X is being used. We will have to wait for
Logic 5 OS X to find out if this is really the case.

Regards

Paul Nicholls



> From: Murray McDowall <murraymc@...>
> Reply-To: logic-ot@yahoogroups.com
> Date: Fri, 16 Aug 2002 20:37:53 +1000
> To: logic-ot@yahoogroups.com
> Subject: Re: [L-OT] Re: New Macs / #1 Customer Support
> 
> Matt wrote:
>>>> - dual processors on the entire line
>>> 
>>> Neither of these last two changes will make a big improvement in Logic
>>> performance on System 9.2. When Logic runs on 10.2 we will be able to see
>>> what the benefits of dual processing on that platform for Logic users.
> 
>> You obviously don't have a dual processor mac. I for one could bot bare the
>> thought of usng a single processor model for logic. Especially now on 9.2.2
> 
> Hi Matt,
> 
> I think we aren't at odds here at all.
> 
> I was just comparing the likely impact of the various changes. It seemed at
> the time I wrote the above that a 150% increase in memory bandwidth would
> be the biggest improvement. That's all I was saying.
> 
> Now reports at  http://mosr.com/ indicate that the CPU can't exploit this
> bandwidth anyway.
> Bit of a bummer I would have thought.
> 
> You are quite right about dual procs I am sure. By all reports dual
> processors  have benefits in Logic -- snappy graphics updates and general
> responsiveness are better than that observed with a single processor  of
> the same speed when the Audio system is fully loaded. PC users were waiting
> for Logic on WinXP/2000 to support dual processing for the same reasons.
> 
> However,  when trying to evaluate what the impact of the new Mac models is,
> the offer of dual processors is not new  -- you can already get them. The
> price point where they kick may well be lower.
> 
> Perhaps the report card should read:
> 
> "Could do better"
> 
> If you want some light entertainment read the link below. I don't think the
> recently unveiled new models are quite what these guys had in mind when
> they were prognosticating late last year.
> 
> Enjoy:
> 
> http://www.architosh.com/news/2001-11/2001a-1130-appleg5.phtml
> 
> Regards,
> Murray
> 
> 
> 
> 
> 
> 
> 
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