[OSGeo-Discuss] FW: Enter the £21,000 GeoVa tion Awards Program

2009-10-23 Thread Suchith Anand
This might be of interest to some of you.

 

Best wishes,

 

Suchith Anand

 

Dr Suchith Anand

Centre for Geospatial Science
The Nottingham Geospatial Building 

University of Nottingham  NG7 2 TU
Tel: (0)115 84 32750

http://www.nottingham.ac.uk/cgs/cgs_suchith_anand.html 
https://owa.nottingham.ac.uk/exchweb/bin/redir.asp?URL=http://www.nottingham.ac.uk/cgs/cgs_suchith_anand.html
 
http://www.opensourcegis.org.uk/ 
https://owa.nottingham.ac.uk/exchweb/bin/redir.asp?URL=http://www.opensourcegis.org.uk/
 
http://ica-opensource.scg.ulaval.ca/ 
https://owa.nottingham.ac.uk/exchweb/bin/redir.asp?URL=http://ica-opensource.scg.ulaval.ca/
 

 

From: Steven Feldman [mailto:shfeld...@gmail.com] 
Sent: 23 October 2009 13:26
To: shfeld...@gmail.com
Subject: Enter the £21,000 GeoVation Awards Program

 

Friends

Excuse the mass mailing.

You may already have heard from me about the GeoVation Awards program that we 
launched a couple of weeks ago. GeoVation has an awards pool of £21,000 to help 
some innovative ideas get started. The only requirement is that they use 
geography and create some social, economic or environmental benefit. You can 
find out more about the Awards Program and browse through the ideas already in 
discussion at https://challenge.geovation.org.uk/ 

There are two groups of people that we are trying to reach and connect - people 
who have an idea (maybe there is something that you wrote down on the back of 
an envelope or beer mat ages ago) and people who have the skills and energy to 
help the ideas become a reality (you could be a developer, a designer or a 
commercial person). Hopefully we can facilitate the connections that will help 
to turn ideas into ventures and then into award winners by January. 

If you want to learn a bit more about the GeoVation Awards Program, meet a few 
of the ideas owners, get your creative juices flowing with some drinks and 
nibbles why not come along to the GeoVation Ideas Forum at the RSA in London on 
November 2nd. Registration is free at http://gvideas.eventbrite.com/

If you know anyone else within your work or social networks who you think my be 
interested in winning one of the GeoVation Awards please forward this 
invitation to them

Thanks and look forward to seeing your GeoVations

Steven
-- 
Regards

Steven Feldman
KnowWhere Consulting

Mobile: +44 (0)7958 924101
Web:http://GIScussions.blogspot.com
Twitter: http://twitter.com/stevenfeldman


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[OSGeo-Discuss] GovHack 30,31 October - Climate Challenge mashup?

2009-10-23 Thread antti roppola
Hi all,

I saw the following on another mailing list I am on  thought I'd post
it here in case any Climate Plugfest people are reading:

-8---8
GovHack is a free, intensive day and a half exploring ways of creating
mashups and applications with government data and services, and most
importantly building some applications before the event is over.

http://govhack.org/

-8---8

I was thinking it would be really cool to offer up the CSIRO and BoM
data into the mix as they are fresh and topical:

http://external.opengis.org/twiki_public/bin/view/ClimateChallenge2009/WebHome

Can someone involved with the plugfest please consider letting the
GovHack people know about any climate change data they might be able
to add to the fray.

Antti
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[OSGeo-Discuss] A brief survey of the kind of data you use in your daily work

2009-10-23 Thread P Kishor
http://www.punkish.org/Raw-Data-vs-Interpreted-Data/

Really, only 5 questions, almost no thinking required. I will give you
your money back if it takes you more than a minute to answer.

So, no matter what your field of study, research or work, please take
a few moments to answer the questions at

http://www.punkish.org/Raw-Data-vs-Interpreted-Data/

Many thanks,



-- 
Puneet Kishor http://www.punkish.org
Carbon Model http://carbonmodel.org
Charter Member, Open Source Geospatial Foundation http://www.osgeo.org
Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor
Nelson Institute, UW-Madison http://www.nelson.wisc.edu
---
Assertions are politics; backing up assertions with evidence is science
===
Sent from Madison, WI, United States
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[OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread Jeff McKenna

For those that did not make it to Sydney, here is the WMS Performance
Shootout presentation with results (GeoServer vs MapServer):

http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout

MapServer: power users who manage MapServer sites with high loads/map 
draws should

take note of the results of MapServer CGI vs MapServer FastCGI, even in
the case of Shapefiles and Rasters (yes, quite surprising).

All: a lot of credit should go to Andrea Aime from GeoServer who worked 
very hard in bringing the MapServer team up to speed to learn the 
testing process.  It was a great experience and we're already looking 
forward to next year.


-jeff


--
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/








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RE: [OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread Craig Miller
Anyone know why Mapguide OS wasn't represented?  I'd be happy to set one up
if there is a conference in my area (Seattle/Vancouver BC area).

Craig

 -Original Message-
 From: discuss-boun...@lists.osgeo.org
[mailto:discuss-boun...@lists.osgeo.org]
 On Behalf Of Jeff McKenna
 Sent: Friday, October 23, 2009 4:39 PM
 To: osgeo
 Subject: [OSGeo-Discuss] WMS Performance Shootout presentation/results
 
 For those that did not make it to Sydney, here is the WMS Performance
 Shootout presentation with results (GeoServer vs MapServer):
 
 http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout
 
 MapServer: power users who manage MapServer sites with high loads/map
 draws should
 take note of the results of MapServer CGI vs MapServer FastCGI, even in
 the case of Shapefiles and Rasters (yes, quite surprising).
 
 All: a lot of credit should go to Andrea Aime from GeoServer who worked
 very hard in bringing the MapServer team up to speed to learn the
 testing process.  It was a great experience and we're already looking
 forward to next year.
 
 -jeff
 
 
 --
 Jeff McKenna
 FOSS4G Consulting and Training Services
 http://www.gatewaygeomatics.com/
 
 
 
 
 
 
 
 
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 --
 Jeff McKenna
 FOSS4G Consulting and Training Services
 http://www.gatewaygeomatics.com/
 
 
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Re: [OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread Paul Spencer

Unfortunately, no one stepped up to represent mapguide.

Cheers

Paul

On 2009-10-23, at 9:28 PM, Craig Miller wrote:

Anyone know why Mapguide OS wasn't represented?  I'd be happy to set  
one up

if there is a conference in my area (Seattle/Vancouver BC area).

Craig


-Original Message-
From: discuss-boun...@lists.osgeo.org

[mailto:discuss-boun...@lists.osgeo.org]

On Behalf Of Jeff McKenna
Sent: Friday, October 23, 2009 4:39 PM
To: osgeo
Subject: [OSGeo-Discuss] WMS Performance Shootout presentation/ 
results


For those that did not make it to Sydney, here is the WMS Performance
Shootout presentation with results (GeoServer vs MapServer):

http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout

MapServer: power users who manage MapServer sites with high loads/map
draws should
take note of the results of MapServer CGI vs MapServer FastCGI,  
even in

the case of Shapefiles and Rasters (yes, quite surprising).

All: a lot of credit should go to Andrea Aime from GeoServer who  
worked

very hard in bringing the MapServer team up to speed to learn the
testing process.  It was a great experience and we're already looking
forward to next year.

-jeff


--
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/








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http://www.gatewaygeomatics.com/


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Re: [OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread antti roppola
It was really interesting. The very close results suggests to me that the
bottlenecks were external to the WMS and more related to external
limitations like the ability to supply things like I/O. It would be
interesting to have profiling data on where the response time was spent. For
Mapserver it'd be a simple case of running Valgrinf and KCacheGrind:

http://kcachegrind.sourceforge.net/cgi-bin/show.cgi/KcacheGrindIndex

Case point. We had an in house app for crunching big raster and KCacheGrind
showed us that an external library was the biggest bottleneck.

A.

On Sat, Oct 24, 2009 at 10:39 AM, Jeff McKenna 
jmcke...@gatewaygeomatics.com wrote:

 For those that did not make it to Sydney, here is the WMS Performance
 Shootout presentation with results (GeoServer vs MapServer):

 http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout

 MapServer: power users who manage MapServer sites with high loads/map draws
 should
 take note of the results of MapServer CGI vs MapServer FastCGI, even in
 the case of Shapefiles and Rasters (yes, quite surprising).

 All: a lot of credit should go to Andrea Aime from GeoServer who worked
 very hard in bringing the MapServer team up to speed to learn the testing
 process.  It was a great experience and we're already looking forward to
 next year.

 -jeff


 --
 Jeff McKenna
 FOSS4G Consulting and Training Services
 http://www.gatewaygeomatics.com/








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 --
 Jeff McKenna
 FOSS4G Consulting and Training Services
 http://www.gatewaygeomatics.com/


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RE: [OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread Craig Miller
I agree wholeheartedly.  It looks like the bottleneck was the database.
I've been privy to some MapServer tests done by testing teams over several
months and the result there was always deploying the data with long update
cycles to the middle tier disks instead of using the database.  Only then
could the performance of the actual map servers be evaluated.  Performance
shootouts/testing take time to do correctly as each run teaches you more and
more about how your deployment architecture affects the results.

 

Craig

Geospatial Software Engineer

Spatial Minds, LLC http://spatialminds.com/ 

 

From: discuss-boun...@lists.osgeo.org
[mailto:discuss-boun...@lists.osgeo.org] On Behalf Of antti roppola
Sent: Friday, October 23, 2009 7:34 PM
To: OSGeo Discussions
Subject: Re: [OSGeo-Discuss] WMS Performance Shootout presentation/results

 

It was really interesting. The very close results suggests to me that the
bottlenecks were external to the WMS and more related to external
limitations like the ability to supply things like I/O. It would be
interesting to have profiling data on where the response time was spent. For
Mapserver it'd be a simple case of running Valgrinf and KCacheGrind:

http://kcachegrind.sourceforge.net/cgi-bin/show.cgi/KcacheGrindIndex

Case point. We had an in house app for crunching big raster and KCacheGrind
showed us that an external library was the biggest bottleneck.

A.

On Sat, Oct 24, 2009 at 10:39 AM, Jeff McKenna
jmcke...@gatewaygeomatics.com wrote:

For those that did not make it to Sydney, here is the WMS Performance
Shootout presentation with results (GeoServer vs MapServer):

http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout

MapServer: power users who manage MapServer sites with high loads/map draws
should
take note of the results of MapServer CGI vs MapServer FastCGI, even in
the case of Shapefiles and Rasters (yes, quite surprising).

All: a lot of credit should go to Andrea Aime from GeoServer who worked very
hard in bringing the MapServer team up to speed to learn the testing
process.  It was a great experience and we're already looking forward to
next year.

-jeff


-- 
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/








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Re: [OSGeo-Discuss] WMS Performance Shootout presentation/results

2009-10-23 Thread Andrea Aime

Craig Miller ha scritto:
I agree wholeheartedly.  It looks like the bottleneck was the database.  
I’ve been privy to some MapServer tests done by testing teams over 
several months and the result there was always deploying the data with 
long update cycles to the middle tier disks instead of using the 
database.  Only then could the performance of the actual map servers be 
evaluated.  Performance shootouts/testing take time to do correctly as 
each run teaches you more and more about how your deployment 
architecture affects the results.


Actually running the benchmarks it looked the CPU was the bottleneck,
we had 25% cpu load in the single test (so 100% of the one CPU
used by that test, out of the 4 available) and during the higher loads
the CPU usage was jumping between 80% and 100% (so almost all 4 cpu
maxed out).

The database server was hardly using more than 25-30% of its CPU
and the network shouldn't have played the bottleneck either (past
experience suggests it takes a tilecache to actually turn a 100Mbit
line into a bottlenek), thought we don't have numbers for that

During the benchmark I had very little time to run profilers, but
the few times I've tried in GeoServer the time seemed to be splitted
quite equally between data fetching, actual drawing, and output
image encoding... which is kind of the worst thing you can get out
of a profile run, since it does not point to any culprit.

Getting a profile out of MapServer is surely going to be interesting,
the codebase is smaller and there is no garbage collection going on
so the results should be clearer. Looking forward to see those results :-)

Cheers
Andrea
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[OSGeo-Discuss] code sprint before or after the conference

2009-10-23 Thread Bart van den Eijnden (OSGIS)

Hi list,

today I was at the code sprint in Sydney, and after a whole week of 
conference with the associated beers and late nights, nothing much 
productive came out of me unfortunately, which was to be expected.


So for next year in Barcelona, I would really appreciate it if the code 
sprint code would be *before* the conference starts.


How do other people feel about this?

Best regards,
Bart

--
Bart van den Eijnden
OSGIS, Open Source GIS
bart...@osgis.nl
http://www.osgis.nl

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