[OSM-talk] OGL, OSM, NASA

Raphael Jacquot sxpert at esitcom.org
Tue Apr 25 19:58:49 BST 2006


Nick Hill wrote:

> This size data set will easily fit into memory of a modest machine. If 
> the R-tree representation fits into memory, then it is fast. If it 
> doesn't, it is monstrously slow.
> 
> How will the database perform when we get to 10 million or 100 million 
> points?

that's true. hoever the test machine has only 128M of ram available
the postmaster process keeps at using 8% of the total ram

top - 18:58:54 up 1 day, 13:03,  2 users,  load average: 0.15, 0.06, 0.02
Tasks:  59 total,   1 running,  58 sleeping,   0 stopped,   0 zombie
Cpu(s):  9.1% us,  0.0% sy,  0.0% ni, 90.9% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:    125128k total,   120284k used,     4844k free,      976k buffers
Swap:  1000400k total,     3708k used,   996692k free,    74116k cached





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