speed testing question/strategy

Apr 26, 2007 at 6:33pm

speed testing question/strategy

Greetings folks

I am building a multiple machine setup for
performance and was doing some testing to try and figure which machine
to use where – 2 for video and 1 for audio/control

these are the 3 machines I have access to :

15″ Powerbook G4 1.67ghz, 2 gig RAM, ATI Mobility Radeon 9700

17″ Powerbook G4 1.5ghz, 1.5 gig RAM, ATI Mobility Radeon 9700

iMac G5, 1.8GHZ, 1GIG RAM, GFORCE FX 5200

Not having a great idea how to do a basic speed test on these machines I opted to use the CPU and GPU patches from the jitter slab tutorial – #44

My results were a bit surprising to me:

15″ Powerbook G4 1.67 ghz – 7.8 fps CPU, 30fps GPU

17″ Powerbook G4 1.5 ghz – 7.8 fps CPU, 30fps GPU

iMac G5, 1.8GHZ – 16.5 FPS CPU, 17.8 FPS GPU

I was wondering if this seems like a reasonable/ the best way to do this kind of preliminary testing or if there is a better option –
obviously the best choice is to make the actual patches and then see what really happens
but these results suggest significant differences in programming stratagies on the iMac vs on the Powerbooks…

any thoughts?
thanks
jamie

#31603
Apr 26, 2007 at 7:03pm

The powerbook’s graphics cards are better, while the imac’s cpu / bus
is better. given that imac’s don’t output a 2nd desktop without a
software hack (that may not matter to you?), its fairly obvious to go
with the powerbooks using GPU based display (opengl /
jit.gl.videoplane etc)

-deKam

> Greetings folks
>
> I am building a multiple machine setup for
> performance and was doing some testing to try and figure which machine
> to use where – 2 for video and 1 for audio/control
>

#102941
Apr 26, 2007 at 7:52pm

ya – I agreed with this assessment

though I am using the software hack

really though this was a current example for a bigger question about testing strategies…
- is this how people do this kind of preliminary testing or is there a different /better model?

just the computer specs don’t always tell the whole story -
for example, in this case the 17″ 1.5ghz machine was actually slightly faster than the 1.67ghz 15″ machine

but thanks for the response

jamie

—– Original Message —-
From: dekam
Sent: Thursday, April 26, 2007 3:03:57 PM
Subject: Re: [jitter] speed testing question/strategy

The powerbook’s graphics cards are better, while the imac’s cpu / bus
is better. given that imac’s don’t output a 2nd desktop without a
software hack (that may not matter to you?), its fairly obvious to go
with the powerbooks using GPU based display (opengl /
jit.gl.videoplane etc)

-deKam

> Greetings folks
>
> I am building a multiple machine setup for
> performance and was doing some testing to try and figure which machine
> to use where – 2 for video and 1 for audio/control
>

#102942

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