Re: Java (bytecode) execution speed

Christian <fakemail@xxxxxx> wrote:
Is there any interpretation going on today in the jvm or is simply
everything compiled to machinecode just in time before execution?

Modern JVMs do both; the performance-critical stuff is JIT'ed, but a lot
of one-off initialization code will be interpreted. At one time, JIT
compilers would frequently run before any code was executed; this was
changed because mixed mode (some interpreting, some compiling) reduces
the perceived start-up time of applications.

--
Chris Smith
.

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