[Tilesathome] Memcached?

spaetz osm at sspaeth.de
Thu Jul 17 15:56:54 BST 2008


On Thu, Jul 17, 2008 at 02:46:30PM +0100, Grant Slater wrote:

> Serving tiles is unlikely to an expensive process. OS will cache 
> filesystem reads regardless.

Neither file system, nor CPU seems to be a bottleneck so far. The number of apache slots (being shared with openaerialmap and other things hosted on that box is simply being used up.

> It would be better to optimise HTTP headers to improve caching (and 
> hence offloading the server) and also support Conditional "304 Not 
> Modified" HTTP Requests.

I checked the apache logs and we send about 6% of all tile requests a 304 reply last week. 

> See how JonB solved this for the OSM Mapnik layer:

Thanks for the links, will have a look.

spaetz




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