2015-07-16 9:50 GMT+02:00 Hilaire <hila...@drgeo.eu>:

> Le 16/07/2015 13:51, Thierry Goubier a écrit :
> >
> > Do you need a dedicated tile server or the generic ones? We had an
> > issue trying to accelerate tile loading when improving that part
> > during PharoDays.
>
> I am wondering if the used server is the geographically closest one.
>

No. We did a very basic query system on one of the overall tile servers at
the beginning. Sven improved that a lot by restricting the number of
concurrent requests for tiles and load balancing among servers (a, b, c).
Given how the system is written, I suspect that if one of the tile servers
is faster, it will get more requests.

More, RTOSM now will do a file-based cache of the tiles, so, if you prepare
the demo beforehand, then your Pharo will have preloaded the tiles and will
not tap into the tile servers.

We still have unexpected latency issues, but I haven't added a time trace
analysis to the Jejak tracer. It's on my todo list.

Thierry


>
> Hilaire
>
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