Re: what to look for in performance degrade under windows ?

["Anders Bergh" <anders1@...>]

Have you made sure you aren't compiling LuaJIT with VS Debug settings,
such as "Edit and continue"?

On 6/20/07, gary ng <garyng2000@yahoo.com> wrote:
> Hi,
>
> I was writing a NBD server(which is essentially file
> stream over tcp/ip). The protocol is very simple: A 28
> byte header indicating either a read or write(I use
> lpack to pack/unpack this header ) + actual data to
> and from server. So a very simple socket based
> program.
>
> I wrote both a lua version and a python version. Under
> linux, lua is about 2-3x faster than python, and about
> 50% of a C implementation.
>
> However, when I put the same code to run under
> windows, the python version is 2x as fast as lua. The
> python is about 50% of the C implementation.
>
> I have also tried to illiminate the file io(so
> effectively echo back) and the result is still the
> same.
>
> What would cause such a strange behaviour ?
>
> Both lua(luajit) and the python code are compiled
> using MSVC on Windows and gcc under linux.
>
> thanks for any hint in advance.
>
> regards
>
>
>
>
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--
Anders