4D v16.3
Cache Management
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Cache Management
4D integrates a built-in data cache scheme for accelerating I/O operations. The fact that data modifications are, for some time, present in the data cache and not on the disk is transparent to your coding. For example, if you issue a QUERY call, the 4D database engine integrates the data cache in the query operation.
The database cache manager has been fully rewritten in 4D v16, allowing it to take advantage of 64-bit environments. Automatically enabled and optimized, it can however be dynamically configured or analyzed with the commands from this theme.
Note also that a Cache flush periodicity selector can be used with the SET DATABASE PARAMETER and Get database parameter commands.
Cache info
New 16.0
FLUSH CACHE
Updated 16.0
Get cache size
New 16.0
GET MEMORY STATISTICS
Updated 16.0
SET CACHE SIZE
New 16.0
Product: 4D
Theme: Cache Management
Created: 4D v16
4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)
