Comments for Chris' GISmo's

Comment on Raster Image Serving Benchmarks by Chris Tweedie

Chris Tweedie — Thu, 04 Feb 2010 03:34:28 +0000

Bart, afaik the ms4w/osgeo4w builds are missing jp2/ecw plugin support. If they remain excluded from the binary builds i will rerun the tests on the other formats ..

Comment on So I’ve been thinking .. by Robert

Robert — Wed, 03 Feb 2010 22:25:30 +0000

We will run this test on Express Server and share our results with you.

Please note that there is a major flaw in the test design: the final numbers are heavily affected by network bandwidth. No matter how powerful and fast the server may be, the image must travel over a network (which is not controlled in this test and yet heavily affects the results).

Comment on Raster Image Serving Benchmarks by Bart van den Eijnden

Bart van den Eijnden — Wed, 03 Feb 2010 16:46:22 +0000

Chris, any news on the Mapserver 5.6 performance?

Comment on Image Server Benchmark by So I’ve been thinking .. at Chris’ GISmo’s

So I’ve been thinking .. at Chris’ GISmo’s — Wed, 27 Jan 2010 09:30:41 +0000

[...] Image Server Benchmark [...]

Comment on Raster Image Serving Benchmarks by Jens Stutte

Jens Stutte — Tue, 19 Jan 2010 11:08:40 +0000

Dear Chris,

regarding your deegree configuration problems, I would like to send you some example configuration we use here, if you let me know some email where to send it to.
Furthermore I’d like to point you to the configuration of single image files described here: http://download.deegree.org/deegree2.2/docs/deegree_wcs_documentation_en.pdf on page 18. ECW files work pretty much the same, just drop in the right bounding boxes, deegree will check the file extension to determine the file type. Configuration is spread over three XML files, but mostly straightforward.
I’d like to point out, that deegree currently is bound to a rather old version of the ECW library, which is known to have some problems.

Thanx for your efforts

Comment on On the hunt for some more benchmarks .. by Sergey Malgin

Sergey Malgin — Thu, 07 Jan 2010 17:52:21 +0000

I know, I know

Comment on On the hunt for some more benchmarks .. by Chris Tweedie

Chris Tweedie — Wed, 06 Jan 2010 02:40:19 +0000

Unfortunately I have no more info to share Segey but I agree that background on test setup is non-existant. I figure the tests were never meant to be found by Mr Google …

If only there were some well documented benchmarks .. *hint hint nudge nudge*

Comment on On the hunt for some more benchmarks .. by Sergey Malgin

Sergey Malgin — Tue, 05 Jan 2010 18:13:48 +0000

I hold my judgment until I see complete explanation on how they setup the tests. Simple adjustments of pyramid levels can do wonders sometimes (this goes both ways)

If you find more info, please share.

Comment on Benchmarks updated by Andrea Aime

Andrea Aime — Thu, 17 Dec 2009 07:50:29 +0000

Thanks for the plan. Not having the rest of the data is unfortunate, the ECW one I have but for that format we have problems that we cannot solve in the very short term. I’m looking forward to have a run on some publicly available data.

About the IMG one, can you make available the gdal_translate command that will generate it starting from the ECW?

About publicly available data, why don’t we use the MrSid file of the FOSS4G 2008 shootout instead? It’s available from the NASA site:
https://zulu.ssc.nasa.gov/mrsid/mrsid.pl
Zoom to the tip of South Africa and grab S-34-30_2000, and we can use it as a base for the other tests? We make the gdal_translate scripts necessary to go to the other TIFF variants.

Not sure we can compress in JP2 using a stock gdal_translate, that version might have to be made available separately as a direct download.

Comment on Benchmarks updated by Chris Tweedie

Chris Tweedie — Thu, 17 Dec 2009 01:45:54 +0000

Andrea, i’ve uploaded all the jmx and csv’s to http://blog.webmapper.com.au/wp-content/testplans.zip (link on the page also)

Obviously you already have the bluemarble ECW. The IMG fullearth is essentially the bluemarble uncompressed, the TIF’s i just have to chase up the license and the source before I make it available.

I cant make the JP2 or MrSID data available as it was supplied by customers but I’m pretty keen to rerun both on different datasets if you have some public domain data available