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ast time, we learned how SAVE_STATEs are supported by the MSIL JIT backend. This time, we’ll touch on everybody’s favorite topic — performance.
If a script program spends most of its time interfacing exclusively with action service calls that take and return strings, performance suffers due to the marshalling conversions involved. This entails duplicating the contents of all global variables in the parent ScriptProgram object and resetting the various runtime guard counters (such as the recursion depth) to their default, zero values. Specifically, comparison and creation logic for engine structures is offloaded to JIT intrinsics, as well as a portion of the code to set up a saved state object for an I_SAVE_STATE instruction.
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