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- Subject: Re: Benchmark shootout shows LuaJIT 2.0 (was Re: [ANN] LuaJIT-2.0.0-beta1)
- From: Wim Couwenberg <wim.couwenberg@...>
- Date: Sun, 1 Nov 2009 18:31:34 +0100
first of all: congratulations with your new release! It must have
been a hell of a job.
> The shootout site now shows LuaJIT 2:
The pidigits benchmark is nagging me a bit, in particular i'm not sure
if my "matrix optimizations" used in #5 are in fact optimizations when
using lgmp. (I did those for a Lua only implementation.) For
example, as shown here
version #7 is still faster and that one doesn't use the matrix trick.
This is on x64, no JIT, but still i'm wondering why the difference...
> As I've already said in a reddit comment:
> Heh, it beats Intel Fortran on two numeric benchmarks (mandelbrot
> and spectralnorm). :-)
> Only the hand-vectorized stuff in C and C++ is faster. Guess I
> need to add auto-vectorization. Well, maybe next week ... ;-)