Cristian since p.mapper is just using standard MapScript functions to render geo-data there is nothing special compared to other Mapserver/Mapscript applications. So this question should be posted on the MS mailing list, or for Postgis layers, the Postgis list.
In general, showing really lots' of features will slow down Postgis more than shapefiles. In most cases it makes also no sense to render all these features since they are not distinguishable at low scales. So playing with MIN/MAXSCALE parameters usually helps most. As Ivan mentioned, if you need to display 10 thousands of features at the same time (for whatever reason) then consider using a second simplified geometry field or just use shapefiles. One use case that comes into my mind where display of huge amount of data might make sense are contour lines. Adding more Ram and increasing the memory used for Postgres might improve speed a bit as well. For lots of layers and all mostly in Postgis the connection pooling might gain some speed, don't know though if this is implemented for PG. Armin On 18/02/2008 16:49, Cristian Rougier wrote: > Dears, i have a pmapper-3.2-beta2 running in a hostgis linux 4.2 (64 bits) > The application run with 64 layers ( in a postgis database). > The server are a dell 2900 ( 2 xeon dual core ) with 4 gb ram , 16 mb video > ati es1000. > > But I see the system slow, in full extent the layer are too slowly to load. > > I understand that when less layers are active (or more little are the > extent) more faster are the system. > > But I need to put more layer on this system. > > > I need the best optimization for this, if you please do you know any doc or > Say me recommendations for max speed of layers display ? > > I will up the shared_buffers of postres database to 500Mb. > > The video memory (or adapter) are sensitive? ( for draw pngs? ) > > Best regards , I wait your news. > > Cristian > > > Tecnología y Programación en Internet. > http://www.lainfo.com.mx > [EMAIL PROTECTED] > > http://www.sistemas-geograficos.com > > Emails muy pesados a: [EMAIL PROTECTED] > Tel:(++5255) 8589-1554 > Movil, Nuevo! : 04455-1770-9888 > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > pmapper-users mailing list > pmapper-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pmapper-users > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ pmapper-users mailing list pmapper-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pmapper-users
