Re: Benchmark shootout shows LuaJIT 2.0 (was Re: [ANN] LuaJIT-2.0.0-beta1)

[Wim Couwenberg <wim.couwenberg@...>]

Mike,

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

http://shootout.alioth.debian.org/u64q/benchmark.php?test=pidigits&lang=all

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...

Bye,
Wim


>
>  http://shootout.alioth.debian.org/u32/benchmark.php?test=all&lang=all&d=data&gpp=on&java=on&luajit=on&v8=on&calc=calculate&box=1
>
> 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 ... ;-)
>
> --Mike
>