Re: LuaJIT performance on the Simplex Method

[Geoff Leyland <geoff_leyland@...>]

On 23/08/2011, at 7:45 PM, Dirk Laurie wrote:

> On Tue, Aug 23, 2011 at 03:24:25AM +0200, Geoff Leyland wrote:
>> Lua: 2967s
>> LuaJIT without ffi: 58.8s
>> LuaJIT with ffi: 45.9s
>> gcc 4.6.0 -O2: 43.2s  (O3 and -ftree-vectorize didn't seem to make it faster)
>> 
>> LuaJIT vs Lua: 50 or 64x faster
>> LuaJIT vs C: 6% slower
> 
> With admirable modesty, Geoff failed to use the occasion to refer to 
> his package LuaTrace, which was updated at 
>     https://github.com/geoffleyland/luatrace
> "about 9 hours ago".

Thanks Dirk, those changes are thanks-in-turn to Alexander Gladysh, who's being very tolerant while I fail to get it running on Ubuntu (but I have a box I can get to now, so hopefully I can work it out)