[Mapserver-users] Slow MapServer with large data

[woodbri@swoodbridge.com]

Well, I speak for Mapinfo files, I have only used shapefiles and I 
have about 19 GB of shapefiles in over 3300 directories and 30,000 
and I get view time of under 10 sec. It is Tiger/Line data covering 
the whole US.

On 13 May 2003 at 12:24, jankarin@post1.dknet.dk wrote:

> 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?

I would  convert it to shapefiles! but some other Mapinfo users might 
have some other suggestions.

-Steve

> 
> Jan
> 
> 
> woodbri@swoodbridge.com wrote:
> > Have you built shptree indexes for all your shapefiles?
> > 
> > On 9 May 2003 at 13:14, jankarin@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@post1.dknet.dk
> > > Engineering College of Copenhagen
> > > 
> > > _______________________________________________
> > > Mapserver-users mailing list
> > > Mapserver-users@lists.gis.umn.edu
> > > http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
> > > 
> > 
> > 
> 
> 


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