"sturlamolden" <sturlamol...@yahoo.no> wrote in message
news:daa07acb-d525-4e32-91f0-16490027c...@w12g2000yqj.googlegroups.com...
I was just looking at Debian's benchmarks. It seems LuaJIT is now (on
median) beating Intel Fortran!
C (gcc) is running the benchmarks faster by less than a factor of two.
Consider that Lua is a dynamically typed scripting language very
similar to Python.
LuaJIT also runs the benchmarks faster than Java 6 server, OCaml, and
SBCL.
I know it's "just a benchmark" but this has to count as insanely
impressive. Beating Intel Fortran with a dynamic scripting language,
how is that even possible? And what about all those arguments that
dynamic languages "have to be slow"?
If this keeps up we'll need a Python to Lua bytecode compiler very
soon. And LuaJIT 2 is rumoured to be much faster than the current...
Looking at median runtimes, here is what I got:
gcc 1.10
LuaJIT 1.96
Java 6 -server 2.13
Intel Fortran 2.18
OCaml 3.41
SBCL 3.66
JavaScript V8 7.57
PyPy 31.5
CPython 64.6
Perl 67.2
Ruby 1.9 71.1
The only comfort for CPython is that Ruby and Perl did even worse.
I didn't see the same figures; LuaJIT seem to be 4-5 times as slow as one of
the C's, on average. Some benchmarks were slower than that.
But I've done my own brief tests and I was quite impressed with LuaJIT which
seemed to outperform C on some tests.
I'm developing my own language and LuaJIT is a new standard to beat for this
type of language. However, Lua is quite a lightweight language with
minimalist data types, it doesn't suit everybody.
I suspect also the Lua JIT compiler optimises some of the dynamicism out of
the language (where it can see, for example, that something is always going
to be a number, and Lua only has one numeric type with a fixed range), so
that must be a big help.
--
Bartc
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