On Tue, Dec 24, 2013 at 2:43 PM, Jonathan Moules <
[email protected]> wrote:

> Hi Andrea,
> I've pre-packaged everything for you including the data. Layergroups,
> SLD's (mine are completely different - no idea what theirs look like), and
> workspaces.
> I think you'll just need to change where the stores are looking to
> wherever you put the shapefiles, but you're going to know better than me.
>
> z_test is the layergroup I'm testing against (it contains the EU basemap
> and strategi layergroups).
>
> http://maps.warwickshire.gov.uk/misc/strategi.zip - also includes the JMX.
>

Thanks. I made a very quick test with what I had handy, a GeoServer 2.4.x,
Oracle JDK 7 (which has known scalability issues) and not even the Image/IO
native PNG encoder
enabled (so, I'm using the slowest PNG encoder in the lot) with a core i7
820 (three years old CPU) I get a throughput that is 2.4 times faster than
yours
(without even trying... but I'm under Linux 64 bits, that might be a
factor):

[image: Inline image 2]

CPU consumption was around 60%.

Btw, This JMeter setup is a bit different that what I'm used to, the
various zoom levels are not run sequentially, in isolation, but all
together at the same time,
using 10 threads, so the real throughput is the TOTAL one, 3.4r/s, the
throughput value associated to the various zoom levels is apparently
meaningless?
The size of the output image is also a factor, it's "big" compared to the
sizes that were used for the FOSS4G benchmarks, at 1272x1261 it is
roughly 4 times bigger than the average one used in last public
benchmarking effort.

When I have time I'll run some tests with OpenJDK and PNGJ and report back,
and also have a look at profiles, to see if there is anything obvious
to optimize.

Cheers
Andrea

-- 
*== GeoSolutions will be closed for seasonal holidays from 23/12/2013 to
06/01/2014 ==*

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054  Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39  339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

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