WorkSpace
The WorkSpace element specifies whether the compliance check maps should set the workspace option to use memory or disk for runmap calls. The default setting is memory-based (-WM). A value (-WU) identifies workspace to use file-based options.
The default setting uses work files that are in memory, and is best for small to medium size transactions. The transaction size at which performance improves by using a work file on disk, depends upon the amount of memory available after other applications and services are taken into account.
The current framework is set up to handle small data as quickly as possible. If your large data is taking longer than expected to process, you can use this setting to use disk instead of memory with the value -WU.