By bloid
via headius.blogspot.com
Published: Jul 06 2007 / 20:39
I finally understand what we should be going for in our compiled code, and how we can really kick JRuby into the next level of performance.
The JVM, at least in HotSpot, gets a lot of its performance from its ability to inline code at runtime, and ultimately compile a method plus its inlined calls as a whole down to machine code. The benefit in doing this is the ability to do compiler optimizations across a much larger call path, essentially compiling all the logic for a method and its calls (and possibly their calls, ad infinatum) into a single optimized segment of machine code.
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