i7 920 CPU not 100% utilized in vray render

[jun_icoi3e]

Sorry if this is a newbie question.

 

I have a i7 920 system 4gb ram with win7 64 bit i bought recently. I have install 3dmax 2010 64 bit and vray 1.5 sp3a.

 

When i render a scene using vray, I can see my 8 cores in the task manager but none of them are running at 100%. I was wondering what could be the problem for this. Is it my software issue or my hardware configuration?

 

Thanks in advance.

 

Jun

[RenderStream]

The intel i7 920 is a 4 core CPU which has hyper-threading technology. If you have hyper-threading disabled and you examine the performance tab of the windows task manager you will see 4 CPU’s being graphed. When you enable hyper threading you will see 8 processors present. Hyper-Threading Technology delivers thread-level parallelism on each processor resulting in more efficient use of processor resources. It doesn't mean that your render times will double when enabled. Our tests showed a 27% speed increase when we enabled HT. The configuration was run 4 times at a room temperature of 72 degrees.

 

So what you are seeing graphed in the task manager could be misleading since it is graphing 8 virtual cores when in fact you really only have 4 physical cores. I'm sure your hardware and software is running just fine.

 

hope that helps,

-joe

Edited March 3, 2010 by RenderStream

[Grohu]

If you are using Light Cache make sure you set it to 8 passes.

Not even sure if sp3 has that option but I know people were having same issues.

 

Why don't you upgrade to sp4a btw?