[OSM-newbies] JOSM memory

[Renaud MICHEL]

Le samedi 17 janvier 2009 à 05:20, David Newman a écrit :
> java -jar -Xms2g -Xmx2g josm-latest.jar
>
> This sets both the minimum and maximum java heap size to 2GB.

Whoa!
Never set the minimum heap size (-Xms) this high!
The virtual machine will try to allocate all the minimum heap size at 
startup, filling uselessly your memory.
On the other hand, you can set the maximum heap size (-Xmx) very high if you 
want, it will only be used if needed (but I'd recommand not using a value 
higher than your physical memory, except if you are working on a server 
environment).
Actually you probably don't need to change the minimum heap, memory will be 
allocated as needed. Setting the minimum heap is useful if you know your 
program will always use that much memory and you want it quickly allocated 
at startup.

-- 
Renaud Michel

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