[Mapserver-users] Slow MapServer with large data

[jankarin at post1.dknet.dk]

I have tried on af few shapefiles, but it doesn't help much. And it wouldn't have any effect on our tab-data.

By the way: Is 15 sec. for a 25 MB shapefile/40 sec for a 30 MB MapInfo map-file the usual speed for MapServer on a PIII, 650 Mhz, 262 MB RAM ? 

If it is, there's only one thing to do,  if not .....
Anyone have some ideas?

Jan


woodbri at swoodbridge.com wrote:
> Have you built shptree indexes for all your shapefiles?
> 
> On 9 May 2003 at 13:14, jankarin at post1.dknet.dk wrote:
> 
> > Hello
> > 
> > I have a little problem with the speed in MapServer. 
> > We're trying to make qiuck-viewer to shape- and
> tab-formats, but 
> > MapServer is running slow with large data: 20 seconds:
> Shapefil 17 MB,
> > dbf-fil 9,5 MB. 45 seconds: Map-fil 31 MB, Dat-fil 25 MB.
> > 
> > I have been trying with the GCI-version and PHP Mapscript
> - same
> > result.
> > 
> > I am running MapServer 3.6.4 with PNG-output under Apache
> 2.4.5 on
> > Windows 2000. The pc is Pentim III, 650 Mhz, 262 MB RAM.
> > 
> > In another installation (PII, 400 Mhz, 196 MB RAM) a
> shapefile
> > (shapefile 17 MB, dbf-fil 9,5 MB) took 80 seconds to
> show.
> > 
> > We're using MapServer in an application which is
> dynamically creating
> > map-files with Mapscript (only showing one layer at a
> time). We're
> > talknig about 17.000 layers in shape- and tabformats, so
> it is not
> > possible to improve indexfiles or anything else related to
> a single
> > layer.
> > 
> > Can anyone help?
> > 
> > Thanks,
> > 
> > Jan Christiansen
> > jankarin at post1.dknet.dk
> > Engineering College of Copenhagen
> > 
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> > Mapserver-users at lists.gis.umn.edu
> > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > 
> 
>