On 04/17/2010 11:29 AM, Frederik Ramm wrote: > Kai, > > Kai Krueger wrote: >> This is less of a question though regarding using renderd vs tirex but >> more of a question of where the future lies and thus for which to >> develop new features. It would be a shame and rather inefficient to >> put in effort to develop features for something that turns out to be a >> dead end > > What particular feature did you want to work on?
It was somewhat intended as a more general question than a specific feature, but what sparked the question was the potential need to extend the rendering to support a lot of styles (200+) as is currently being discussed on the wikimedia maps list. At http://cassini.toolserver.org/tile-browse/ there are renderings for all the 278 languages wikipedia supports. With renderd each of the rendering threads has a copy of all the mapnik styles. As each style takes up about 5 - 6 Mb, this results in 278*8*5.5 = 12Gb of ram. Not directly desirable. So thoughts exist to implement some form of on demand loading and unloading of styles, as it is unlikely that all those styles will be needed all the time and/or share memory accross rendering threads/processes. So the question somewhat was where to do this potential development. But as it is only thoughts at the moment it will probably depend on who ever gets to actually implementing this. Hence my more general question of which of the two seems more "recomended/future proof" for potential developments like that. Kai > > Bye > Frederik > _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
