[Benchmarking] First pair of load scripts and some considerations

[Yingqi Tang]

Shanmugam, Andrea,

This is Yingqi Tang from ESRI, and I am also participating in the benchmark for Foss4G 2009. I wonder if I can also have this python tool so I can do some practice on the data.

Thanks,
Yingqi
________________________________________
From: benchmarking-bounces at lists.osgeo.org [benchmarking-bounces at lists.osgeo.org] On Behalf Of Shanmugam Ganeshkumar [shanmugamg at gmail.com]
Sent: Wednesday, September 02, 2009 7:29 PM
To: Performance testing of OSGeo and other web service engines.
Subject: Re: [Benchmarking] First pair of load scripts and some considerations

Andrea,

I dont have any experince with python, well when I execute the script in windows OS, this is what I get. installed, python 3.1.1.

C:\Python31>wms_request.py -count 2000 -region -180 -90 180 90 -minres 0.0042 -maxres 0.5 > bluemarble.csv
  File "C:\Python31\wms_request.py", line 37
    print 'Usage: wms_request.py [-count n] [-region minx miny maxx maxy]'
                                                                         ^
SyntaxError: invalid syntax

C:\Python31>python wms_request.py -count 2000 -region -180 -90 180 90 -minres 0.0042 -maxres 0.5 > bluemarble.csv
  File "wms_request.py", line 37
    print 'Usage: wms_request.py [-count n] [-region minx miny maxx maxy]'
                                                                         ^
SyntaxError: invalid syntax



let me know if you can help, else just ignore. Not that important.

Thanks
ganesh





2009/9/2 Andrea Aime <aaime at opengeo.org<mailto:aaime at opengeo.org>>
Shanmugam Ganeshkumar ha scritto:

HI Andrea,

I have been playing around with your jmeter script with csv file. Tested with some WMS engines (GeoServer and a commercial) and it works well.

Mind, GeoServer out of the box won't perform that well, some tuning is
needed.


It will be a good idea to test with fixed tiles apart from random; I would suggest;

Fixed tile size, Random BBox, Bluemarble Image (better to fix the bbox limit to -178, 178, -88, 88)

128x128 - smart phone clients
256x256 - typical tile size (if requested as tiles)
800 x 600 - standard map window for a 1024x768 screen
Can you generate the three CSV files and post it over here? (it will be nice to have 5000 samples)

Just grab the tool I attached in the first mail of this thread,
you'll be able to make it generate whatever csv you need and
find tune other parameters as well such as the map area.
You can find some usage instructions in the thread titled
"Chat about the load testing setup".

As for the test, not sure we can make this many runs, in the
end we need to stick everything in a 20 minutes presentation
(which is more than just shooting at the audience comparison
charts, we'll also need to make some HP on why the results
are different).


Cheers
Andrea

--
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.
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