[blenderdt]

The difference between the OSM and Google tile is 75 bytes. So if they serve one million tiles OSM saved 75MB.

OSM needs 54TB for all tiles but only around 1.8% are viewed. So you need at least 1TB of cache.

I am curious if this micro optimalization really makes a difference.

[carstenhag]

But it only applies to 100% water/forest/etc tiles, which when zoomed out only applies to oceans.

[3OCSzk]

How did you find out only around 1.8% are viewed?

[blenderdt]

From a OSM wiki page. Most of the world is ocean and not a lot of people zoom in on those parts.