TimesTen Memory Size

Hi
I have some question.
The following is information on the server using.
1. Physical memory size : 10GB
2. Used memory capacity
OS : 1GB
Application : 2GB
Currently, 7GB of available capacity, Memory Size Up to TimesTen How far would have to allocate?
What is the recommended value? What is the document(doc number) with recommended value?
Thank you very much.
GooGyum

It's not possible to answer this question without a great deal more information. it depends on many factors, the most critical one being 'how much data do you need to store in TiemsTen'? Sicne TimesTen is an in-memory database, all data to be managed by TimesTen must fit into memory at all times. iIf you want to store 4 GB of data in TimesTen then you will typically need to allocate at least 5 GB of memory to TimesTen whereas if you want to store 500 MB of data in TimesTen then you would of course need much less memory. if you are using TimesTen to cache data from Oracle DB then the question is how much data do you need to cache (and what is that data) in order to achieve a good performance improvement, how does that data need to be managed (dyanicm versus static caching, aging, etc.).
So, really you need to approach this from the other direction. Understand what TimesTen does and how it works, see how (if) this fits with what you are trying to achieve. If it does, look at what data you want to hold in memory and use the capacity planning tools to calculate how much memory will be needed. Then choose a machine that has the right hardware resources (CPU, memory and disk) to handle that.
Chris

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