MEMCACHE

MEMCACHE

Specifies to use the Extended Server Memory Architecture (ESMA) memory as a SAS System file cache

Default: 0

Valid in: configuration file, SAS invocation

Windows specifics: all

Syntax
Details
See Also

Syntax

MEMCACHE 0 | 1 | 4

0: specifies memory cache is off.
1: specifies not to add any new files to the cache. Reads and writes to files already in the cache continue as if MEMCACHE is on.
4: specifies memory cache is on. ESMA memory is used as a SAS System file cache.

Details

When the MEMCACHE system option is 4 or 1, the SAS System file cache places data in the ESMA memory as it is processed. This data is then available for future references by the SAS System. Files in the cache are kept until the SAS System is shut down, caching is terminated, or more space is required for new files. Memory is reclaimed on a least recently used basis. Cached data is written to permanent storage. You can control which SAS System libraries use the cache by using the MEMCACHE system option in the OPTIONS statement. ESMA memory usage can be monitored using NT Performance Monitor.

See Also

Using Extended Server Memory Architecture as a SAS System File Cache
System option: MEMLIB
NT Performance Monitor

Chapter Contents
Previous
Next
Top of Page

Default:	0
Valid in:	configuration file, SAS invocation
Windows specifics:	all