[mapguide-users] specification of TileCache

[Zac Spitzer]

Firstly, MgCooker just mimics the calls a browser makes, so it's exactly
the same
as browsing a map, just automated.

the default settings for mgcooker are for 1 concurrent request, that is
request one
title and then request the next tile, this will always be the absolute
slowest way to
generate tiles.

depending which browser you are using, it will request between 2-8 tiles at
a time,
whilst browsing.

a rule of thumb is to run with at least 1 thread per core on your server,
depending
on your what kind of server you are running and your map, you might find
running
4 or 8 threads per core might produce the best performance, you need to test
this out, whilst monitoring system load and tiles generated.

2.4 is much more stable with lots of underlying bug fixes, what problems do
you
forsee with openlayers, none of the expose API's which openlayers calls
have been
changed since 2.2?

also are you running the latest king oracle driver?

Regards

Zac








On Wed, Feb 6, 2013 at 7:14 PM, Stefanie Siegel <s.siegel at isb-siegel.de>wrote:

>
>
> Thanks -that might do the trick.
> I tried both methods but didn't change "meters per unit" when using the
> official method (was 1)... . Therefore the result is likely to be wrong.
> :-)
>
>
> -----Ursprüngliche Nachricht-----
> Von: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] Im Auftrag von Jackie Ng
> Gesendet: Mittwoch, 6. Februar 2013 09:07
> An: mapguide-users at lists.osgeo.org
> Betreff: Re: [mapguide-users] specification of TileCache
>
> Are you using the official method?
>
> The non-official method of tile generation is known to be imperfect and
> inaccurate and getting it fixed will be hard because I have no idea how
> this
> tile generation algorithm works.
>
> If you're not using the official method because you don't know what value
> to
> put in for "meters per unit" in MgCooker, use this PHP script to calculate
> it for you:
>
> http://trac.osgeo.org/mapguide/wiki/CodeSamples/PHP/MPUCalculator
>
> - Jackie
>
>
>
> --
> View this message in context:
>
> http://osgeo-org.1560.n6.nabble.com/specification-of-TileCache-tp5032364p503
> 2394.html
> Sent from the MapGuide Users mailing list archive at Nabble.com.
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>
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>



-- 
Zac Spitzer
Solution Architect / Director
Ennoble Consultancy Australia
+61 405 847 168
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