Re: performance benchmark results on Julia's benchmark
- From: pingon begand <sbronfion@xxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Fri, 14 Sep 2012 11:11:30 +0200
Great comparison. What does || mean in your code?
2012/9/2 Francesco Abbate <francesco.bbt@xxxxxxxxx>
> Hi all,
>
> I've made some tests using the Julia's benchmark to see the results of
> GSL Shell. The performance is largely determined by LuaJIT so this may
> be interesting for the people here.
>
> Here the document:
>
>
> https://docs.google.com/presentation/d/1Gwx8rYEV1FqaqALUvnE0VHMhm87CW121cJ0YAoQwfys/edit
>
> and here the results:
>
> Test Julia GSL Shell Python
> ------------------------------------------
> fib 0.429 0.120 3.641
> parse_int 0.367 0.856 3.878
> mandel 0.911 0.171 5.727
> quicksort 0.733 1.114 14.062
> pi_sum 38.59 38.60 764.24
> rand_mat_stat 42.17 57.09 254.92
> rand_mat_mul 175.45 178.70 200.25
> printfd 66.83 74.18
>
> The file used for the test is in attachment. It is standard Lua but it
> does use some GSL Shell modules for some of the tests.
>
> The results are quite good but in some cases Julia is performing
> slightly better than GSL Shell. In particular I was surprised to see
> that it is faster for the quicksort tests where I was thinking that
> LuaJIT was going to rock. Something funny to note is that the integer
> division is needed in this test and both Lua and GSL Shell needs to
> use a trick to do it! :-)
>
> Otherwise LuaJIT is doing a great job in the Mandel test where we have
> a tight loop with complex numbers computations. I guess that in this
> case the work of Mike for objects sinking make the difference for this
> test.
>
> For other tests like rand_mat_stat probably the GSL Shell stuff is
> playing a role by using some slightly suboptimal code. What is
> embarassing here is that the GSL Shell code is not only slower but
> also more ugly. In this case Julia is showing its advantage being
> specialized for matrix computations.
>
> The code for the Julia test can be easily find in the
> http://julialang.org page, there is a link to the perf code in the git
> repository.
>
> Francesco
>
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