Am 26.11.2010 09:32, schrieb Thomas Ineichen:
On a side note: bw-noicons needs double the time for rendering as osm-no-lables - shouldn't they be more-a-less equal in cpu-time?
Yes I also had the feeling that the bw styles need very long to render but I don't have any idea why.
[The following is only about 'full'-styles]
Looking at Zoom 12: http://www.openstreetmap.org/?lat=49.4592&lon=10.9644&zoom=12&la...
Do we really need a weekly update on that zoom? What you can see is:
- main streets (secondary and up) and trains
- forests and fields
- names of villages and cities
IMHO those things don't change often enough to let them jam the queue. Rendering them once a month would be ok.
The dirty plans (which zoom and when) were wrong, I see that now. Currently I'm re-marking every tile in z0-12 as clean. I want the tirex to catch up again. Then we can discuss how to go on for that. Kai Krueger has found some issues with the dirty section in the load-next script as well. I don't have time to work on these things but as osm is a MMP this should not be a problem ;)
Secondly: Is it correct, that tiles never get deleted? So every tile gets rerendered according to the timetable, no matter if it was requested from a user during that period or not? So maybe a deletion strategy would be handy..
Deleting is remove any fallback. Deleting a tile is never a solution. We don't render tiles after the timetable (except z0-6) but mark them as dirty. They'll get rerendered when accessed next time via mod_tile (while mod_tile serves out the old tile from disk).
Peter