[Tilecache] tips on seeding the cache

[angus scown]

I am trying to understand how to increase the throughput of the seeding 
program.  Watching the output as it churns through the requests I am 
trying to debug where the blockage  is.  Each tile is taking 20 seconds 
to create.  If I look at the apache log and mimic the requests the tile 
cache is making to the WMS the requests are returning images in 
subsecond response times as is expected. 

The server it is running on is not under any load and I am trying to 
work out where the throughput blockage is.  I am getting results such as 
[20.4531s : 0.048/s] 52/252 from the seed program.