How a JIT compiler helps performance of applications?

Posted by igorgue on Stack Overflow See other posts from Stack Overflow or by igorgue
Published on 2010-05-13T16:46:30Z Indexed on 2010/05/13 17:04 UTC
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I just read that Android has a 450% performance improvement because it added a JIT compiler, I know what JIT is, but I don't really understand why is it faster than normal compiled code? or what's the difference with the older approach from the Android platform (the Java like run compiled bytecode).

Thanks!

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