On 17.11.2011 22:38, GerdP wrote:
Hello Felix,
okay, thanks again for these numbers. Just one remark regarding speed: My profiling programs says that ~ 3% of the time is now spent in the routines that store the data (Node2AreaMap and below). So, I can't get this much better. Most of the time is spent reading and writing pbf and converting the data between pbf format and internal format. So the biggest speedup would then be a faster HDD or even better a SSD. Well maybe I try it out locally on my PC with SDD tomorrow (though my CPU is much slower, but nice to see where the bottleneck is)
The speed difference between max-nodes 900000 and 1100000 probably comes from the different amount of data written to the pbf files. The smaller the areas, the more data is written to more than one output file, and that slows down processing. Oh yes, that is well possible. Even more as I use --overlap=4000 (instead of default 2000).