[mapguide-users] Map Tiled Perfomance

[Trevor Wekel]

Hi all,

I'm not sure what version of MapGuide everyone is using but the
following performance tweaks do help in the trunk code base and may help
with the officially released streams:

- Turn on data connection pooling and caching for all data sources
(including SDF and SHP)
In serverconfig.ini:
[FeatureServiceProperties]
CacheSize = 100 (3 x the number of layers you are serving should be
sufficient)
DataCacheSize = 100 ( >= number of distinct feature sources you are
serving)
DataConnectionPoolEnabled = 1 (turn it on)
DataConnectionPoolExcludedProviders = none  (turn connection pooling on
for all feature sources)
DataConnectionPoolSize = 100 ( >= number of feature sources you are
serving)

When you turn connection pooling on for file based data sources, the
files remain open so you may not be able to remove or overwrite them.
This will affect APIs like ApplyResourcePackage.
  
In trunk, a new API has been added to MgTileService which will make
cache generation scripts easier to write.  Take a look at RFC 11.
http://wiki.osgeo.org/index.php/MapGuide_RFC_11_-_Stateless_Http_GETTILE
IMAGE_request

Thanks,
Trevor

-----Original Message-----
From: Kori Maleski [mailto:kmale at telus.net] 
Sent: Thursday, February 08, 2007 8:46 PM
To: 'MapGuide Users Mail List'
Subject: RE: [mapguide-users] Map Tiled Perfomance

I resemble that remark. :-)

 

The only way to improve performance without auto-generation is to
manually pan around for each zoom threshold to generate the cache.

 

 

We will be releasing a utility to do the auto-generation in the next
month or so.  Still tweaking...

 

 

 

Kori Maleski

 

 

 

 

  _____  

From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Jason Birch
Sent: February 8, 2007 6:57 PM
To: MapGuide Users Mail List
Subject: RE: [mapguide-users] Map Tiled Perfomance

 

You have 37 layers each on its own base layer in the same map?

 

Or you have a single base layer with 37 layers in it?

 

The latter is immeasurably preferred.

 

If they are already all in a single base layer, you may want to look at
auto-generating the tiles.

 

Certain folks that have already done this internally would be well
looked upon if they released their source :)

 

Jason

 

  _____  

From: Kencana
Subject: [mapguide-users] Map Tiled Perfomance

currently i have 37 layers in the base layers. and the performance of
the first map tiled loading will take arround 30 seconds. any idea on
how to make it faster in the first map loading?