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From: Aaron Bartell
While we all know Java has gained some excellent performance in recent
releases (I remember hearing of some big ones in 1.5) I don't think it can
hold a candle to a same process written in a lower level language,
correct?
Incorrect.
Java is compiled to byte code, and in the initial releases of Java, this
byte code was interpreted. End of story. And that may be what you're
thinking of when you're comparing theoretical Java performance vs.
performance of a compiled language such as C.
However, today's JIT compilers do a phenomenal job of turning the Java byte
code into executable machine code on demand, and so if your code is written
properly and is executed more than a few times, it will begin to approach
the speed of bare-metal compiled code.
JIT compilers may never reach the performance of compiled code, but they get
pretty close these days. And a lot depends on how good the C programmer is,
eh?
Joe
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