[OSM-dev] Osmosis multi-task questions

Martijn van Oosterhout kleptog at gmail.com
Tue Nov 27 15:47:40 GMT 2007


On Nov 27, 2007 4:37 PM, Lambertus <osm at na1400.info> wrote:
> My tests reveal:
> Extracting bounding boxes one-by-one from the planet file uses: tN.
> Where 't' is the time to extract one bbox, 'N' is the amount of bboxes.
>
> Extracting multiple bboxes from the planet file using 'tee' takes less
> then: 2t. Where 't' is the time to extract one bbox.

Interesting. Probably memory usage the goes linear by N but that's a
smaller problem...

Given hypercube is already doing the daily planet bit, if you guys
send me the bounding boxes I can get the per country dumps done in
fairly short order...

Have a nice day,
-- 
Martijn van Oosterhout <kleptog at gmail.com> http://svana.org/kleptog/




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