lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index] 

Which version of MSVC and how is it linked?
I am not sure which APIs that python uses for socket io but
luasocket uses the BSD APIs on windows and these are relatively
slow.

db

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




____________________________________________________________________________________
Get the Yahoo! toolbar and be alerted to new email wherever you're surfing.
http://new.toolbar.yahoo.com/toolbar/features/mail/index.php