Improving Performance... {Scanned}

[Carola Jesch]

Hi All,
Since it seems to be an issue for more than one MapServer user to improve
the performance I was wondering if anybody of you know some good sources for
getting topographic features in different spatial resolutions? Lets say the
roads in 1:5,000,000 1:1,000,000 1:100,000  or something like that?
I actually don't know how to get such data sets. Assuming we had it it
wouldn't be a problem to use scale dependency in different layers.

Carola 

> -----Original Message-----
> From: UMN MapServer Users List 
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Jelmer Baas
> Sent: Tuesday, March 21, 2006 4:27 AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] Improving Performance... {Scanned}
> 
> Rahkonen Jukka wrote:
> > Hi Jelmer,
> > 
> > I made a quick test with one shapefile of size 580 MB 
> containing 1.2 
> > million polygons. Shptree (from FW Tools 0.9.8) with default 
> > parameters took 2 min 30 secs to run with 3 GHz Pentium and 
> Windows XP 
> > and memory usage grew not more than 200-300 MB during the process.
> > Of my 1 GB I had all the time more than 500 free. The idle 
> usage seems 
> > to be around 200 MB.
> 
> Hmm, for some reason the file that I mentioned earlyer DOES 
> work. I probably used a different file for testing, though I 
> can't remember which one.
> 
> Can you comfirm if the SHP+index is faster than the .TAB file?
> 
> --
> Jelmer
>