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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Great to see the shootout results.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Also interesting to see the Amazon RDS announcement (MySQL
based) with possibility of </span><span style='font-size:11.0pt;font-family:
"Calibri","sans-serif";color:#1F497D'>using quadruple extra large EC2
instances: </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>db.m2.4xlarge - 68 GB of RAM</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:.5in'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><a
href="http://aws.typepad.com/aws/2009/10/introducing-rds-the-amazon-relational-database-service-.html">http://aws.typepad.com/aws/2009/10/introducing-rds-the-amazon-relational-database-service-.html</a><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:.5in'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><a
href="http://aws.typepad.com/aws/2009/10/two-new-ec2-instance-types-additional-memory.html">http://aws.typepad.com/aws/2009/10/two-new-ec2-instance-types-additional-memory.html</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Maybe next shootout the DB layer could look at Amazon RDS(mySQL)
and PostgreSQL/PostGIS using a quadruple extra large instance 68Gb RAM. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>After reading Todd Hoff’s blog I’d be curious to see
if PostGIS could be configured to make use of large memory capacities and how
it affects performance:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a
href="http://highscalability.com/are-cloud-based-memory-architectures-next-big-thing">http://highscalability.com/are-cloud-based-memory-architectures-next-big-thing</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Randy<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
discuss-bounces@lists.osgeo.org [mailto:discuss-bounces@lists.osgeo.org] <b>On
Behalf Of </b>Craig Miller<br>
<b>Sent:</b> Friday, October 23, 2009 8:38 PM<br>
<b>To:</b> 'OSGeo Discussions'<br>
<b>Subject:</b> RE: [OSGeo-Discuss] WMS Performance Shootout
presentation/results<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Craig<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Geospatial Software Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a href="http://spatialminds.com/">Spatial Minds, LLC</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
discuss-bounces@lists.osgeo.org [mailto:discuss-bounces@lists.osgeo.org] <b>On
Behalf Of </b>antti roppola<br>
<b>Sent:</b> Friday, October 23, 2009 7:34 PM<br>
<b>To:</b> OSGeo Discussions<br>
<b>Subject:</b> Re: [OSGeo-Discuss] WMS Performance Shootout
presentation/results<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>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:<br>
<br>
<a href="http://kcachegrind.sourceforge.net/cgi-bin/show.cgi/KcacheGrindIndex">http://kcachegrind.sourceforge.net/cgi-bin/show.cgi/KcacheGrindIndex</a><br>
<br>
Case point. We had an in house app for crunching big raster and KCacheGrind
showed us that an external library was the biggest bottleneck.<br>
<br>
A.<o:p></o:p></p>
<div>
<p class=MsoNormal>On Sat, Oct 24, 2009 at 10:39 AM, Jeff McKenna <<a
href="mailto:jmckenna@gatewaygeomatics.com">jmckenna@gatewaygeomatics.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>For those that did not make it to Sydney, here is the WMS
Performance<br>
Shootout presentation with results (GeoServer vs MapServer):<br>
<br>
<a
href="http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout"
target="_blank">http://www.slideshare.net/gatewaygeomatics.com/wms-performance-shootout</a><br>
<br>
MapServer: power users who manage MapServer sites with high loads/map draws
should<br>
take note of the results of MapServer CGI vs MapServer FastCGI, even in<br>
the case of Shapefiles and Rasters (yes, quite surprising).<br>
<br>
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.<br>
<br>
-jeff<br>
<br>
<br>
-- <br>
Jeff McKenna<br>
FOSS4G Consulting and Training Services<br>
<a href="http://www.gatewaygeomatics.com/" target="_blank">http://www.gatewaygeomatics.com/</a><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
_______________________________________________<br>
mapserver-users mailing list<br>
<a href="mailto:mapserver-users@lists.osgeo.org" target="_blank">mapserver-users@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/mapserver-users"
target="_blank">http://lists.osgeo.org/mailman/listinfo/mapserver-users</a><br>
<br>
<br>
-- <br>
Jeff McKenna<br>
FOSS4G Consulting and Training Services<br>
<a href="http://www.gatewaygeomatics.com/" target="_blank">http://www.gatewaygeomatics.com/</a><br>
<br>
<br>
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