WorkSpace settings
WorkSpace settings specify the location (file or memory) of the workspace and PageSize and PageCount settings for configuring the page size. WorkSpace settings allow you to optimize the speed of map processing.
When a map is run, a paging scheme to access information about the data as efficiently as possible is used. Portions of both working data and actual data are paged, as needed. The workspace can be a combination of files and memory, or simply memory-based. When file-based workspace is used, the amount of memory accessed at a given time depends on the number of pages and the count of pages configured for a map to run.
The WorkSpace settings specify the location (file or memory) of the workspace and PageSize and PageCount settings for configuring the page size.
The default value for the WorkSpace setting is File.
- Value
- Description
- File
- A work file is created for each input card. Use the Directory setting to specify the directory.
- Memory
- A memory-based workspace is created.
The WorkSpace settings allow you to optimize the speed of map processing.
- When the size of the input data a map is processing is large, file-based workspace using default paging is recommended (Workspace = File).
- When small amounts of data are processed, smaller page sizes and memory-based workspace is recommended (Workspace = Memory).
- When using burst processing, adjust the workspace configuration
for the size of burst data.
If a particular map card is not referenced by any map rules, no work area for that card will be created, and the audit log will indicate that the work area is not found.