How to make SAS use all resources?

[somebody]

So I have increased SAS MEMSIZE but SAS does not use all of them when running PROC or DATA steps. Is there a way to tell SAS to use all available memory?

[ChrisNZ]

SAS will not use more than it needs.

Sometimes SAS does not need all the RAM or all the CPU.

It depends on the task at hand.

Data steps are typically reading data sets in a sequential manner and doing few calculations, so are limited by the speed of the I/O subsystems and need very little RAM or CPU.

[LinusH]

You'll probably see more resource consumption in PROCs that sort and/or aggregates data, such as SQL, SUMMARY and SORT. Set the option FULLSTIMER to monitor resources. Also, set the SORTSIZE option to a value slightly below your setting of MEMSIZE.