Kai Behncke wrote:
Hello list,
I`m testing MapServer with fast-cgi to see if there`s a benefit in performance.
I succesfully compiled MapServer with fast-cgi, in my Apache 2.2 at Debian Etch the mod_fastcgi is activated, the httpd.conf has the needed entries and in my mapfile I set
PROCESSING "CLOSE_CONNECTION=DEFER"
to a very "expensive" Layer (the data are shapefiles).
But if I check the performance with "siege"
(siege -c 4 -r 10
http://localhost/cgi-bin/mapserv?map=/var/www/wms_ogc/wms_server.map)
I don`t see any performance benefits in comparison to MapServer without
fastcgi??
Am I do something wrong??
What is the benefit of fast-cgi?
Should`t it be faster than "normal"-cgi?
Kai,
FastCGI can be helpful for layers with a high connection cost. Even large
shapefiles don't take long to open so the benefit of fastcgi is negligable
(and in fact the shapefile layer type ignores CLOSE_CONNECTION). The benefit
becomes significant with SDE, and Oracle layers primarily though I've heard
reports of measurable improvements with PostGIS or OGR depending on the
situation.
Best regards,
--
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