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[glorybound]

Howdy-

I have noticed that all my machines (slaves) are running 100% CPU and 50% RAM. Would it be safe to say that if I had faster CPU's I would use more of the RAM? Is there a ratio for CPU speed and RAM? I have 2.67Ghz processors and 12GB of RAM.

Just a thought

[beestee]

Managing RAM usage can be like walking a tightrope with some projects and hardware, whereas now it seems that you have a nice, wide purple people bridge to walk across without a care...

50% is quite conservative though. You have quite a bit of overhead you could use to squeeze out a bit of performance by dedicating some of the extra to Autograss and/or Dynamic Memory Limit. Other major factors that will impact RAM usage are your image size if you are using the frame buffer, and any bitmaps textures used in the rendering (you have room to make both bigger if desired, and improve the quality of your product). Also, model complexity will naturally consume more RAM the more complex the model becomes (which can also improve depth and quality). Generally over time you will become comfortable with the headroom and will naturally find ways to improve your renderings in ways that start to use up the extra resources...so you don't necessarily need to push it if you are comfortable with your current performance.

[werticus]

no there is not a relationship between cpu speed and ram usage.


If your using only 50% of your ram it means you could have a scene that is two times as complex before you ran out of ram.

Running out of ram will make your render take 10x as long as it needs to. Then you will find you wont be using 100% cpu as your cpu is waiting for the hard drive.