On Tue, Jun 28, 2011 at 12:45 PM, Ivan Grcic <ivan.gr...@geo-solutions.it> wrote: > 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)
Oh yes, dont forget to use cached layers where ever you can, as it tends to speed up things quite a lot ;) > > 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 > > ------------------------------------------------------- > -- ------------------------------------------------------- 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
