32- or 64-bit
alexander.v.smirnov at gmail.com
Mon Aug 9 07:08:34 BST 2010
Michael Hirsch wrote:
>> Currently my computer has 4Gb and 64bit KK installed. Since i frequently
>> execute java-based applications, like Eclipse, Ant, ExecuteQuery, I feel
>> that it is choking. Probably because these applications consume too much
>> memory. Earlier, i had 32-bit kubuntu on this computer. I didn't notice
>> difference when moved to 64-bit .
> The solution is to make your IDE run with the option
> "-XX:+UseCompressedOops" in its JVM. This makes java so some magic so
> that it compresses its pointers so they are 32 bit, but can still
> access 32GB of ram. After doing that my program was a lot smaller.
> I'm not sure how to do that in eclipse. I use Intellij IDEA and there
> is a file idea.vmoptions that I put it in. I'm sure eclipse has
> something similar.
> But in general, if you don't have more than 4 GB of RAM, I don't think
> there is any real advantage to going 64 bit--stick with 32.Hello Michael,
thanks for the solution. Eclipse has similar file with java options,
Will watch for Eclipse's behavior after adding the option.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the kubuntu-users