Additional Features
Using the IBUFSIZE= System Option
Beginning with SAS 9,
you can use the IBUFSIZE= system option to specify the page size for
an index file. Typically, you do not need to specify an index page
size. However, you might need to use the IBUFSIZE= option if you have
the following:
-
your application is experiencing a lot of I/O in the index file
-
the length of an index value is very large
The main resource that
is saved when reducing levels in the index is I/O. If your application
is experiencing a lot of I/O in the index file, increasing the page size might help. However, you must re-create the index file after increasing the page size. The number of pages that are required for the index varies with the page size, ...
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