[mapserver-users] MapServer Performance

[Lowther, David W]

I should clarify... I have a Refresh Map button / link in my implementation
that redraws the map. Mainly used if a user tunr on / off layers and wants
to see the results. Sorry for the confusion.

Dave

-----Original Message-----
From: Sean Gillies [mailto:sgillies at frii.com]
Sent: Thursday, November 21, 2002 1:46 PM
To: mapserver-users at lists.gis.umn.edu
Subject: Re: [mapserver-users] MapServer Performance


If you refresh your browser window, the content should
come from your browser cache, not from the server.
Refreshing a page is not necessarily a great test of
performance.

I never found Mapserver to be as fast as ArcView on
my desktop, but found it to be competitive with other
web map software.  I should say that I never bothered
to make a serious trial. Performance is good enough, but
Mapserver's edge is platform-independence and extend-
ibility with Mapscript.  With other software, you have
to live with the functionality that the developers
give you.  With Mapserver, you are the developer, and
the sky is the limit.

Sean

Jan Hartmann wrote:

>
>
> Thomas P. Colson wrote:
>
> > Do you have a link so we can see this mapserver app of yours? I'd like
> > to see this fast refresh...what platform/build options are you using?
> > -----Original Message-----
>
>
> I had the same experience of MapServer being faster than ArcView desktop
> in some cases. I think MapServer does some generalizing when rasterizing
>  vectors. ArcView always plots all lines, even if they transform to one
> and the same image pixel, while MapServer prunes them (I think). The
> effect is very noticeable when you zoomout far from detailed maps. Also,
> Steve put in some quad-tree wizardry I would like to know  more about.
>
> Jan Hartmann
> Department of Geography
> University of Amsterdam
> jhart at frw.uva.nl
>
>
> > From: Lowther, David W [mailto:dlowther at ou.edu]
> > Sent: Thursday, November 21, 2002 8:18 AM
> > To: 'bwragg at mappingandbeyond.com'; mapserver-users at lists.gis.umn.edu
> > Subject: RE: [mapserver-users] MapServer Performance
> >
> >
> > Benjamin,
> >
> > I have been using Mapserver for about 2-3 months now. Before that we
> > used a
> > CGI app written around MapObjects and at times we played with ArcIMS to
> > compare performance. In my experience, Mapserver FAR FAR FAR outperforms
> > ESRI products. The real shock for me was that I could load a layer of
> > 55,000
> > parcels into Arcview 3x, turn the layer on, THEN click refresh on my
> > Mapserver page with those same parcels in the map and the Mapserver page
> > returned well before Arcview finished drawing - consistently.
> >
> > I don't know HOW Mapserver is so fast, but it is. So far performance has
> > been equally as good with other vector layers as well as raster
> > layers. All
> > this, for free, platform independant.
> >
> > I guess while I am on my grateful box I'll add that the support from 
> this
> > mailing list and the user community in general is outstanding.
> >
> > HUGE thanks to all that make and support Mapserver,
> >
> > Dave Lowther
> > Geo Information Systems
> > University of Oklahoma
> >
> > -----Original Message-----
> > From: Benjamin Wragg [mailto:bwragg at mappingandbeyond.com]
> > Sent: Wednesday, November 20, 2002 9:59 PM
> > To: mapserver-users at lists.gis.umn.edu
> > Subject: [mapserver-users] MapServer Performance
> >
> >
> > Hi Guys,
> >
> > I'm just about to start playing with MapServer a bit, but I was just
> > wondering how the performance is along side some of the other map
> > servers like ArcIMS.
> >
> > Thanks,
> >
> > Benjamin Wragg
> >
> >
>
>