[mkgmap-dev] Memory Consumption on Index Creation

Mon Aug 29 19:52:45 BST 2011

> 1. I noticed that (at least for my style-file) 7500MB of RAM available
> does not suffice to compile a map of Europe including index! However if
> I recreate the index in another go, then it is no problem.
>
> How comes? The index creation seems to be completly independent of the
> maptiles creation. Is mkgmap leaving stuff inside the memory, that is in
> reality not needed anymore?

I think you have listed your style and your mkgmap parameters on your 
website. Can you give a link to them? That makes it easier to find the 
problem.

And important: Do you use any patches?

WanMil

>
> 2. Also as running out of memory primarily happens on index creation, it
> would be great if mkgmap writes out the index under a temporary name,
> and once it has passed correctly, renames the file. Else it is not
> possible to easily assess in a bash/batch script whether mkgmap
> completed the map correctly or not (and hence one uploads broken maps if
> everything automated). Or at least I don't see any way to find out
> whether it passed correctly or not.