Speed differences between MC and Rev

[Richard Gaskin]

Rob wrote:
> Result: The Rev version has about 45k more of scripts in it including 3 
> references to stack "Home" (MC version has none).
> 
> It would appear that Rev is including scripts that are not actually 
> needed, how much this would effect speed is debateable though
> especially when run on modern hardware. Having conducted some rudimentry 
> comparisons on my machine
> (AMD 4200+ x2, 1gb DDR400, Win XP 32bit) using a variety of stacks 
> (including "ImageData Toolkit")
> I notice no difference in the execution speed.

So far this is consistent with all data except Wilhelm's.  Neither 
logically nor empirically have we yet found a way that simply adding a 
library can affect execution speed.

We'll have to wait for Wilhelm to provide more data.  Unless there's 
something wrong with his benchmarking method, the result will be worth 
investigating:

If his benchmarks are simply the result of an engine version mismatch, 
then if the Rev engine is later it would be worthwhile determining where 
the performance went between engine builds.

If instead there does seem to be some difference in the way standalones 
are made (though after building my own standalone maker I can honestly 
report that I can't imagine what that could be) it's also worthwhile 
determining where the performance goes.

Ideally Wilhelm will be able to come up with a stack that presents an 
isolated recipe for this problem. It's my understanding that at the 
moment the tests are being run within a very complex collection of 
scripts, making it difficult to produce a generalized recipe for others 
to run.

Without such an isolated example of this reported issue, I can't think 
of any way it could be reasonably addressed further beyond what's 
already be done.

If he's able to deliver an isolated example I'm sure RunRev will jump at 
the chance to optimize based on it reveals.

-- 
  Richard Gaskin
  Fourth World Media Corporation
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