Slow performance on fairly fast machine...

[Benjamin Rowland]

I'm using RedCine on a 2x2.66 GHz Dual-Core Intel Xeon Mac Pro tower. When rendering to ProRes, it's rendering about a frame a second. Is this normal? Are my expectations of render speed too high? The computer has 8GB of RAM and the X1900 graphics card.

 

[Miodrag Popovic]

What kind of storadge do you use ?

Cheers

Pop

 

[Benjamin Rowland]

This computer is at home, so I'm using a G-Raid drive connected via FW800. This could be the bottleneck. The drive is plenty fast for FW800, but maybe not fast enough. My computer at work is hooked up to a Facilis Terrablock (very fast) - speed isn't an issue there, but I can't test RedCine on it because it's a G5. Curious as to what kind of times others are getting - few people have posted times like 10x realtime.

 

[Miodrag Popovic]

After we start to use very fast storadge ( above 1GB/sec) we shrink rendering time 3 to 4 times. We compare RAM expanding from 4 to 8Gb and result was not so impresive like with speed up the storadge. We will do some testing and let you know about results.

Cheers,
Pop

 

[Benjamin Rowland]

Thanks Pop!

 

[Alexis Hanawalt]

The storage file transfer doesn't seem like a likely bottleneck. If it can pass the data through for playback in realtime, it's not going to slow down a render...

 

[galexander]

here is classic paper on GPU, CPU performance issues

http://cva.stanford.edu/classes/cs99s/papers/myer-sutherland-design-of-display-processors.pdf