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InterSystems Ideas
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* Bugs and troubleshooting should as usual go through InterSystems support.
Status Needs review
Categories InterSystems IRIS
Created by Alex Woodhead
Created on Aug 1, 2023

AntiMatter Code accelerator

SQL Engines employ "query rewrite" to effect a more efficient query to supplement user expertise or application knowledge.

Can Mac / Int code generated by Classes be accelerated in a similar way?

Beyond locating inefficient and discouraged code anti-patterns influenced by documented guidance, the idea here is to implement a Mac / Int code rewriter for a FULL "read-ahead" of Mac / Int code base to identify implementation optimizations that can be substituted to accelerate existing int code compiled to obj code.

Speculating some ideas to demonstrate principle:

  • Replacing once set variable with literal ( as if had been a macro substitution )

  • In-lining to avoid method call eg: within a loop

  • Pre-calculate static numeric

  • Pre_concatenate strings

  • Switch to naked-global syntax when useful

  • Substitute more efficient commands or expressions

  • Drop unreachable code / code blocks ( when procedure block = 1)

  • Flatten unnecessary code structure

  • Internal and private Variable / Method shortened / obfuscated

  • Assist code automation goals like rewriting for code generator emitted output to be more efficient

Benifits:

  • Can improve existing code bases by recompilation

  • Potential smaller code footprint for routine memory cache

  • Faster code execution

  • Faster generated code ( code generator methods, DTL , BPL, Rules )

  • ADMIN RESPONSE
    Sep 25, 2023

    Thank you for submitting the idea. The status has been changed to "Needs review".

    Stay tuned!