Please advise on this config

[John Rofrano]

My tests on Vegas Movie Studio HD 10 using my QuadCore and GeForce 9800GT have show an improvement in using GPU rendering but I don’t see a difference in my CPU utilization either way which is odd.

I used 10 seconds of 1080p Kodak Zi8 AVC/H.264 footage in an HD 1080i project and rendered to Sony AVC using the AVCHD 1080-60i template.

My finding are:

Vegas Pro 9: 00:01:00 @ ~79% CPU utilization
VMSHD10 With GPU: 00:00:50 sec @ ~45% CPU utilization
VMSHD10 Without GPU: 00:01:10 sec @ ~45% CPU utilization

So 10 seconds of video took 1 minute 10 seconds to render via CPU (7x) and only 50 seconds to render using GPU (5x); but Vegas Pro only took 1 minute on CPU (6x) because it drove the cores harder.

What shocked me is the CPU wasn’t fully used for CPU only rendering and, in fact, it didn’t change when I used GPU rendering. Also Vegas Pro 9.0 seems to do a better job with AVC encoding because it used more of my CPU’s.

So I don’t think there is a bottleneck in your system. I just don’t think the Sony AVC encoder in Movie Studio is doing a good job of utilizing available CPU/GPU power.

The fact the the Main Concept encoder drives all of your cores at 99% means your system is working fine; it’s the Sony AVC encoder that has the problem.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Frederic Baumann]

It’s very nice to you John to have taken the time for these tests!

It’s a pity that Studio does not load the CPU as much as it could.

I don’t know why there is no difference on my machine between rendering with/without GPU. I am just figuring out that I start from 1920×1080 clips to render to 1280×720 MP4. Maybe the resizing is the difference with your tests (in which GPU shows it helps). I will do another test where I render to 1920×1080 and will let you know.

Thanks again,
Frédéric

—
Want to learn on Sony Vegas Event Pan/Crop tool? Watch my video tutorial:
https://library.creativecow.net/baumann_frederic/Sony-Vegas_event-pan-crop-tool/1

Or about Keyframes? https://library.creativecow.net/articles/baumann_frederic/Animating-with-Keyframes-in-Sony-Vegas.php

French version: https://geo.creativecow.net/fr/a/12999

[Lawrence Farr]

This thread has been very informative. I recently bought a stock Gateway system from Best Buy and it’s working pretty well with Vegas Pro so far. I just need to add a second internal hard drive.

Here is the system… https://www.gateway.com/systems/product/529668656.php It came stock with two DVI video outputs was one selling point for me although it lacked firewire ports (I had a spare FW card). It was about $1k and I’m happy enough with it so far but next time I’ll probably ask advice here first.

But this off the shelf system is allowing me to enjoy Vegas much more in realtime than I could previously.

[Frederic Baumann]

Hi,

I have contacted the Sony support to ask how to benefit from the CUDA acceleration with the Sony AVC Plug-in.

Here is an extract of the answer I got:

“Based on your description of the issue, it appears that your machine also includes a fast processor, which as you can see, does the majority of the rendering work. With a high-end processor, we would not expect to see a great difference in rendering times. For more information on rendering times, please see:

Answer Title: Long render times
Answer Link: https://www.custcenter.com/cgi-bin/sonypictures.cfg/php/enduser/std_adp.php?p_faqid=4835
”

This clarifies a bit more, for me, why I can see no difference between renderings with the GPU toggled on or off.
The ideal would be that the software can load both the CPU and the GPU, but it seems not to be implemented so far.

Best regards,
Frédéric

—
Want to learn on Sony Vegas Event Pan/Crop tool? Watch my video tutorial:
https://library.creativecow.net/baumann_frederic/Sony-Vegas_event-pan-crop-tool/1

Or about Keyframes? https://library.creativecow.net/articles/baumann_frederic/Animating-with-Keyframes-in-Sony-Vegas.php

French version: https://geo.creativecow.net/fr/a/12999