Understanding Efficiency Trade-offs
As you optimize SAS programs, it is important to understand
that there are trade-offs. Decreasing the use of one resource frequently
increases the use of another. The following table shows examples of
some common efficiency trade-offs.
|
Decreased Use of This
Resource
|
Result: Possible Increased
Use of This Resource
|
|---|---|
|
disk space
 |
CPU time
 |
|
I/O (by reading or writing
more data at one time)
 |
memory ... |
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