MVARSIZE

MVARSIZE

Specifies the maximum size for in-memory macro variables

Default: 4096 bytes

Valid in: configuration file, SAS invocation, OPTIONS statement, SAS System Options window

Windows specifics: Default value

Syntax
Details
See Also

Syntax

-MVARSIZE n | nK | nM | nG | hexX | MAX | MIN

MVARSIZE=n | nK | nM | nG | hexX | MAX | MIN

n | nK | nM | nG: specifies the amount of memory in multiples of 1; 1,024 (kilobytes); 1,048,576 (megabytes); and 1,083,741,824 (gigabytes), respectively. For example, a value of 8 specifies 8 bytes and a value of 3M specifies 3,145,728 bytes.
hexX: specifies the maximum macro variable size stored in memory as a hexadecimal number. This number must be followed by an X.
MAX: specifies the maximum amount of memory available.
MIN: specifies 0, which causes all macro variables to be written to disk.

Details

The MVARSIZE system option specifies the maximum size for macro variables that are stored in memory. If the size of the macro variable is larger than the maximum value that is specified, variables are written out to disk.

The value of the MVARSIZE system option can affect system performance. Before you specify the value for production jobs, run tests to determine the optimum value.

See Also

MVARSIZE system option in SAS Language Reference: Dictionary

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Default:	4096 bytes
Valid in:	configuration file, SAS invocation, OPTIONS statement, SAS System Options window
Windows specifics:	Default value