OpenEdge executes r-code in different ways, depending on whether you store the r-code files in a procedure or archive library and the type of library.

When executing r-code from an operating system file in a directory, from a standard procedure library, or from an archive file, OpenEdge accesses and executes the r-code file segments in an execution buffer in local memory. For more information about the standard r-code execution environment, see Standard r-code execution environment.

When executing r-code from a memory-mapped procedure library, OpenEdge accesses and executes the r-code segments in shared memory. For more information about the memory-mapped r-code execution environment, see Memory-mapped r-code execution environment.

For information about monitoring execution environment activity during an OpenEdge client session, see R-code execution environment statistics.

For information about monitoring and optimizing r-code performance, see Manage Client Performance.