Objectives
After completing this lesson,you should be able to :
- Describe the memory components in the SGA
- Implement Automatic Memory Management
- Manually configure SGA parameters
- Configure automatic PGA memory management
Memory Management:Overview
DBAs must consider memory managment to be a crucial part of their job,because:
There is a finite amount of memory available
Allocating more memory to serve certain types of functions can improve overall performance
Automatically tuned memroy allocation is often the appropriate configuraion,but specific environments or even short-term conditions may require further attention