Mapfile Tuning

[John Cole]

Do you have to remove the extra projections or is it good enough to move the
ones you use to the front of the file?

Thanks,

John Cole

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Fawcett, David
Sent: Monday, September 18, 2006 9:04 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Mapfile Tuning

This sounds like a great start to a 'Mapfile Tuning' HowTo...

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Eijnden, Bart van den (AGI)
Sent: Monday, September 18, 2006 8:53 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Mapfile Tuning


That's absolutely true. And it is read a few times for a map request
.....

Alternatively, you can strip all unused entries from your epsg file.
That's the approach we take here.

Best regards,
Bart

-----Oorspronkelijk bericht-----
Van: UMN MapServer Users List
[mailto:MAPSERVER-USERS at LISTS.UMN.EDU]Namens Daniel Morissette
Verzonden: maandag 18 september 2006 15:47
Aan: MAPSERVER-USERS at LISTS.UMN.EDU
Onderwerp: Re: [UMN_MAPSERVER-USERS] Mapfile Tuning


Do you use "init=epsg:xxxx" type of projection definitions in your 
layers? In the past I have found the EPSG codes lookup to be quite 
expensive. If you use that then you may find that using native proj4 
definitions for your projections might help.

Daniel



Pleyer, Walter wrote:

> Hi folks!
> 
> We are currently experiencing some performance troubles which we 
> tracked to the size of the mapfile. We expect the mapfile to grow to 
> well over 100 layers and analysis shows that the parsing of this 
> mapfile slows the mapgeneration down by almost a second each time.
> Is there enaything else, apart from using mapscript, that can be done
to
> tweak the performance?
> 
> Walter
> 
> LFRZ
> A-1200 Wien, Dresdner Strasse 89
> Tel:   ++43(1)33 176/421
> Fax:   ++43(1)33 176/999
> Mobil: 0676/5256642
> Email: walter.pleyer at lfrz.at
> WWW:   http://www.lfrz.at 


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