[Tilesathome] tiles at home = mission impossible?

[Norbert Hoffmann]

Dirk-Lüder Kreie wrote:

>Norbert Hoffmann schrieb:
>
>> The world at zoom 0 will be finished not before all 68,719,476,735 tiles
>> are rendered. 
>
>Not correct, since the maximum zoom counting towards z0 is z8, because
>every higher zoom tile will be less than a pixel on z0.

But you'll need all z8. And to generate them you'll need all z12
renderless. And to get z12 'renderless' z12-z17 'everything' is rendered.

>> To say it in days: All 16,777,216 zoom 12 tiles will need about 4 years if
>> nobody changes anything in the db or in the rules from now on (and the
>> rendering speed stays at about 500 per hour).
>
>When we moved server to the current one we did re-render the entire
>(known) OSM world in several weeks.

That was a rerender of all (at that time existing!) tiles and before the
design of lowzoom changed. If you would try this now, you would have to
wait for more than 2 years. The design specs for lowzoom now say: We need
everything (independent of the existence of data).

Norbert