Thanks for the response Andrea.
For the 9 seconds case, is that normal, it takes under a second from a local
execution ? (From a remote machine it takes 9 seconds to serve the file with
the following java code):
------------------
URL google = new URL("
http://pc-talostest:9090/geoserver/wms?SERVICE=WMS&LAYERS=talos%3AwroclawCommCover,talos%3AwroclawAerial&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&HEIGHT=902&TRANSPARENT=TRUE&REQUEST=GetMap&BBOX=17.06858348177348,51.19432361587464,17.075593502666408,51.19773778371771&WIDTH=1852&STYLES=&SRS=EPSG:4326&VERSION=1.1.1
");
ReadableByteChannel rbc =
Channels.newChannel(google.openStream());
FileOutputStream fos = new FileOutputStream("c:/wroclaw.png");
fos.getChannel().transferFrom(rbc, 0, 1 << 24);
---------------------------
Devrim Baris Acar
On Tue, Apr 19, 2011 at 09:41, Andrea Aime <[email protected]>wrote:
> On Mon, Apr 18, 2011 at 4:39 PM, Devrim Baris Acar
> <[email protected]> wrote:
> > Hi,
> > I have been testing with geoserver 2.0.2 for some wms serving.
> >
> > I created a wms request from my client software and used this http
> request
> > to use from within "CURL" program.(it is a utility program that downloads
> > the url from command prompt)
> >
> > Now the results ;
> >
> > 1-From a remote machine it takes 9 seconds to serve the file(3.7 mb png
> > file)
> > 2-From a local run on the remote machine , the wms request is completed
> in
> > 0.6 seconds. (3.7 mb png file)
> > 3-From udig it takes nearly 28 seconds to download that imagery
> > 4-The same png file copies over network in less then a second.
> >
> > I dont get where the problem is and where I should tackle, any ideas?
>
> The time it takes for uDig to get the image on screen is the sum of:
> - GeoServer generating the png
> - network transfer
> - png image decoding in memory
> - image painting on screen
>
> You're not accounting for the last two items, thought 28-9=17seconds
> seems like a long time to perform the last two steps.
> Maybe the client is really old and/or the JAI Image I/O native extensions
> are not installed in that machine? (I think uDig installs them by default,
> but for example on Win 64bit they are simply not available)
>
> Cheers
> Andrea
>
>
> --
> -------------------------------------------------------
> Ing. Andrea Aime
> GeoSolutions S.A.S.
> Tech lead
>
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
>
> phone: +39 0584 962313
> fax: +39 0584 962313
> mob: +39 333 8128928
>
> http://www.geo-solutions.it
> http://geo-solutions.blogspot.com/
> http://www.youtube.com/user/GeoSolutionsIT
> http://www.linkedin.com/in/andreaaime
> http://twitter.com/geowolf
>
> -------------------------------------------------------
>
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