Justin Deoliveira ha scritto: > Anyways, I am curious if other people think the value add here is worth > the hit in performance. My opinion is I have never seen GML as a format > built for speed, it is way too verbose, it requires the loading of an > external document to describe itself, etc... I am also curious to know > if anyone has actually chosen server software based soley on how fast it > spits out GML.
Solely on that makes no sense. In general you have a set of minimum requirements, and you have to satisfy them all for a solution to be chosen. Performance is usually one of them, unless you're just setting up a proof of concept. For example, INSPIRE is setting minimum requirements for both WMS and WFS. The WFS requirements are not high (whilst the WMS ones might be very taxing), but you can be sure people deploying a INSPIRE compliant service will do a formal performance comparison (whilst before that might have been just a informal check): http://inspire.jrc.ec.europa.eu/reports/ImplementingRules/network/D3.9_Draft_IR_Download_Services_v2.0.pdf The requirement is 0.5MB/s sustained for each connection, but it also says the service must be able to serve at least 10 concurrent connections. ("The capacity of an INSPIRE service is given by a number of service request which are sent in a given time frame. Then the performance indicator has to be met for every individual service response."). This means the total requirement is 5MB/s total (quite a taxing one, since we're talking MBytes, not Megabits, meaning one would also need a 40Mbit line to serve out that much data). Marketing wise the performance presentation already saw GeoServer being slower than MapServer in GML3/shapefile output. You may say it's fast enough for production purposes and you're probably right about it, but it does not make for a good impression on users looking at the presentation anyways (the takeaway looking at bar charts is relative performance, the fact that both are plenty fast is something that you have to force them to read). Cheers Andrea ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Geoserver-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-devel
