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Why is a JIT compiler faster than a byte-compiler

P: n/a
I was talking to a friend of mine about the speed of Python code. One
of the questions that came up was why is a JIT compiler like Psyco
faster than the Python byte-compiler? I understand why languages like
Pyrex are faster, since they set static types that the compiler can use
to optimize. But why is Psyco faster? I would think that any
optimizations that Psyco makes could just as easily be made by the
byte-compiler, but obviously this is not the case, since Psyco runs
something like 4x faster, and I also understand that similar speedups
are seen by Java JIT compilers. What am I missing? Thanks in advance.

Rick

Jul 18 '05 #1
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P: n/a
Thanks for the link. That completely answers my question.

Jul 18 '05 #3

P: n/a
Hallöchen!

"dodoo" <do*******@gmail.com> writes:
http://www-900.ibm.com/developerwork...ndex_eng.shtml


I can't reach it. Is there an alternative URL?

Tschö,
Torsten.

--
Torsten Bronger, aquisgrana, europa vetus
Jul 18 '05 #4

P: n/a
http://www-106.ibm.com/developerwork...,lnxw03=PsycoC
http://gnosis.cx/publish/programming...python_b9.html
On Sat, 26 Mar 2005 11:22:03 +0100, Torsten Bronger
<br*****@physik.rwth-aachen.de> wrote:
Hallchen!

"dodoo" <do*******@gmail.com> writes:
http://www-900.ibm.com/developerwork...ndex_eng.shtml


I can't reach it. Is there an alternative URL?

Tsch,
Torsten.

--
Torsten Bronger, aquisgrana, europa vetus
--
http://mail.python.org/mailman/listinfo/python-list

--
Best regards,
Alexey.
Jul 18 '05 #5

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