[mapguide-users] Map Guide Inconsistent Performance

Andrew DeMerchant andrew.demerchant at gemtec.ca
Mon Jul 24 12:17:15 EDT 2006

I get pretty poor performance too (I'm using the DWF viewer). I've 
noticed a serious decrease in speed when you use filters on your data, 
and when you use thematic layers. I had thought that maybe it was the 
ODBC FDO, but maybe not, since you're using SDF's....


Gord McKenzie wrote:

> I am looking for a little help.  I have been looking at Map Guide Open 
> Source for some time and am having what seems like performance 
> problems.  Here are some details.
> I have installed and configured Mapguide on 4 machines.  A test and 
> production server at the office and a couple of test machines at 
> home.  3 are running Server 2003 and IIS 6 and I have the Studio 
> preview.  The third machine is XP Pro with IIS 5 which I know is not a 
> server OS.  I am only using the AJAX viewer so far.
> Creating maps with one or two or three layers of shp data loaded and 
> converted to SDF.  Tried various levels of thematic styling from 
> default to a simple color ramp sample on land use.  The SDF files are 
> only about 3 and 8MB.
> In the Studio preview windows and in weblayout preview, the 
> performance is spotty and usually slow.  By spotty I mean sometimes I 
> get just the preview window with all the layout type elements like 
> titles and legend etc., but no map display and no zoom control.  Other 
> times I get everything as expected but even at times like this the 
> performance is slow.  Like 8 seconds to zoom in on a few parcels.  
> This is all on the internal network or local machine where I am 
> testing and developing.  If I get all three layers on and in zoom 
> scale range, the performance is even somewhat slower.  This is 
> consistent across all my 4 testing machines. 
> I feel as if I am missing something obvious here.  Does anybody have 
> any suggestions of things I could be looking at or trying.
> One of my home machines could be considered underpowered by todays 
> standards.  The rest should be pretty good.
> 2 machines are 3.2 GHZ, 2GB ram, 160GB SATA in one machine and 80GB 
> SCSI in the other
> 1 machine is 3.4GHZ 3GB RAM, 160GB SCSI.

	*Andrew DeMerchant*
*Computer Technologist*
ph.1-877-4GEMTEC x.163
fax 506-453-9470

/GEMTEC Limited <http://www.gemtec.ca>
/191 Doak Road
Fredericton, NB, Canada
E3C 2E6

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