Hi Robert, i took a quick look at your app. Just a few hints from my side (mostly client side things)
As i can see you are loading 3 wms layers + 1 wfs layer. For wms layers, there isnt too much you can do, except to try too keep the number of layers as low as you can (2-3 should be max for good client experience). Also, setting buffer:0 for WMS layers should minimize number of image request client does for map move/zoom actions. Currently for your app client has to fetch 190 images for 3 wms layers for map zoom action, which is quite a lot (on 1440x900 screen resolution) About wfs laye, you are currently loading few hundreds of features in the map without any strategy. Try yo look at bbox and cluster strategies, or using wms layer+GetFeatureInfo instead of vector layer (at least for first few zoom levels) I would say this layer is the reason that slows down your application the most ( in IE it takes ages for application to start, and map move/zoom actions are quite slow. Turning off this layer makes application quite more responsive) I guess you can find more help about this on OL mailing list. Cheers, Ivan On Tue, Jun 28, 2011 at 11:05 AM, Robert Buckley <robertdbuck...@yahoo.com> wrote: > Hi, > after a long summer break of 8 weeks I am now back into things. At the top > of my list is the further development of a wms/wfs service for my local > authority. > I have been "practising" with a Linux > Ubuntu/Tomcat6/Geoserver/PostgresSQL/Postgis/geoExt setup for a while now (1 > year) and have a few app up and running. I am now in a position to start > thinking about releasing the application in the public, but am unsure about > the performance of my setup. > My hosted 32bit server has 2gb Ram and 25gb storage space. The application > which I have developed do not serve data very fast. What I am trying to find > out is whether this is due to my javascript coding methods, the Geoserver > setup, Tomcat6 configuration, Postgis responsiveness or server performace > limitations. > One app can be tested here. > http://maps.zgb.de:8080/geoserver/www/testing/wea.html > I find that the loading time varies considerably on different PCs. I have a > WinXP Desktop with 3gb ram, and the loading time is acceptable. My my > colleague who is also using XP but with only 1gb the loading time can be up > to 30sec- min. Firebug shows that the ows/geoserver takes the longest time > to serve. > I thought the local pc performance should have little affect upon server > based apps, but obviously this is not the case. Even the browsers can make a > huge difference as far as I can tell or even browser add-ons which have been > installed. > Can anyone give me any tips on how to weed out the typical problems when > building a geoserver based app? > > Thanks for any tips, > Robert Buckley > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2d-c2 > _______________________________________________ > Geoserver-users mailing list > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users > > -- ------------------------------------------------------- Ivan Grcic GeoSolutions S.A.S. Software Engineer Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://twitter.com/geosolutions_it http://www.youtube.com/user/GeoSolutionsIT ------------------------------------------------------- ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
