On Thu, Feb 20, 2003 at 01:05:14PM -0600, Matt Campbell wrote:
> Why is there a significant performance improvement, considering that
> mod_python embeds the Python interpreter in the web server, while SCGI
> keeps the interpreter in a separate process?  It would seem that the
> inter-process communication between Apache and the SCGI server would
> add overhead and thus degrade performance.  Thanks.

IPC is not the bottleneck.  Think about the bandwith and latency of IPC
verses an internet link.  Most of this paper applies to SCGI:

    http://www.fastcgi.com/devkit/doc/fcgi-perf.htm

HTH,

  Neil