[MS4W-Users] MS4W 3.0 beta 7, fcgi and raster layer

[Rahkonen Jukka]

Hi,

I had a try with fcgi which is advertised to give great speed
improvements.
I had a fresh MS4W 3.0 beta 7 installation, topped up with MS 5.6.0
update.
I followed the instructions and edited httpd.cong accordingly. This
seemed to
go right, because now my server is answering also for requests which I
send 
to \fcgi-bin.  However, I do not see much difference in behaviour.
JMeter test
with 10 and 20 concurrent users give similar output with both cgi and
fcgi requests, 
about 5 images per second. Throughput is about 600 KB/sec. After reading

http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout
I was awaiting about two times more speed for fcgi.

Is there something more I should do, in addition to making fcgi module
to load 
and commenting out the few lines from httpd.conf file?

I had only one raster layer in my test, and I added the line
 PROCESSING "CLOSE_CONNECTION=DEFER"
to layer definitions. I am not sure if it is needed for raster layers
which are read through tileindex. My tileindex shapefile has about 13000

polygons so I guess it should gain from using fcgi. Images themselves
are
processed in typical Mapserver way, they are uncompressed, tiled, and
with
overviews.

-Jukka Rahkonen-