[Benchmarking] 2013 Shootout?

Jeff McKenna jmckenna at gatewaygeomatics.com
Thu Apr 11 05:05:25 PDT 2013


Hi Arnulf, Martin,

I also really like this idea (but your use of the letters "OS" is
confusing my tired old brain ha).  Awesome plan to use the Ordnance
Survey opendata.  Arnulf: are you willing to champion this year's
exercise?  I think you'd be perfect, I feel the passion in your email.
 For now all that is needed is a copy/paste of the 2011 benchmarking
abstract and submit it.

(notice how I'm learning to delegate Arnulf? :)

Count the MapServer team in!

-jeff



On 2013-04-11 8:20 AM, Seven (aka Arnulf) wrote:
> Martin, thanks for proposing this, I think this is a great idea.
> 
> The OpenData published by the OS is a real-world set of data from
> very different geographic resources. I have been working with them
> quite a bit recently and encountered some really interesting
> issues. For example that a compressed raster will serve faster from
> a cloud environment than an uncompressed version but that the
> uncompressed TIF served form a standalone machine with much less
> CPU but a HD directly connected to it will beat it by lengths.
> 
> So my interest would actually be in learning more about these
> options, not which software is the "best" [1]. (I married MapServer
> a long time ago and only death will separate us, sort of :-).
> 
> I'd be interested in helping to find data, create architecture / 
> hardware scenarios and might even provide some modest server
> resources myself.
> 
> Ah, plus this will allow us to shed some light on Open Data (and I 
> will make sure there is some OSM in the mix to compare with OS GB,
> if only for the provocative effect of having pub symbols on an 
> authoritative map). ...plus I am currently evangelizing or
> advocating Open Data to UK Local Authorities - and showing that it
> is possible and even easy with Open Source tools will make a great
> mix. Ahm, and yes, that one can then even combine them with the
> proprietary folks in the mix (closing the loop to Martin).
> 
> Have fun, Arnulf
> 
> [1] read about my take on the unique, single "best" here:
> 
> 
> 
> On 04/11/2013 09:57 AM, Martin Daly wrote:
>>> maybe this year we do a deegree, MapServer shootout?  Any other
>>>  interested development teams lurking???
> 
>> I'm interested, but I'm not sure at the moment that we can
>> commit. However, because you will be in my playground, I do have
>> a couple of ideas.
> 
>> First, for data we/you could use OS OpenData:
> 
>> http://www.ordnancesurvey.co.uk/oswebsite/opendata/discover.html
> 
>> The data goes from (raster) MiniScale at ~1:1 000 000 to OS 
>> VectorMap District (raster or vector) down to ~1: 15 000. It is
>> the same data that is used in OS OpenSpace:
> 
>> http://www.ordnancesurvey.co.uk/oswebsite/support/web-services/code-playground.html
>
>> 
> 
> 
> SLD files are available for all products, as far as I know.
> 
>> Second, we/you could use the OS OpenSpace tiling scheme, instead 
>> of the normal web map one. It is interesting for a few reasons:
>> it uses a grown-up CRS (British National Grid, EPSG 27700); it
>> has resolutions that are not powers of two; and it has more than
>> one tile size (on different tiling levels that is; they are
>> homogenous on a single tile level, obviously).
> 
>> I can provide the details if you are interested.
> 
>> Martin
> 


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