-XX:+MaximizeHeapSize?

[Jon Masamitsu]

This initial proposal does not include the perm gen. 

Andreas Sterbenz wrote:

> Jon Masamitsu wrote:
>
>>
>> I'd like to propose an additional policy under a new command line
>> flag.  Let me use MaximizeHeapSize for the name for now.  If
>> MaximizeHeapSize is set, the VM will calculate
>> the amount of physical memory on the platform and
>> try to use that as the upper limit on the heap size.   As
>> with the current GC ergonomics the upper limit will
>> be ~4g on a 32bit system.   If the VM cannot actually
>> reserve that amount of space at initialization, it will
>> try reserving some smaller amounts until it succeeds.  There
>> will be some minimum size (probably 64m) that it will not
>> go below.
>
>
> Does this proposal address the perm gen as well? Or will it still be 
> necessary to set the size of the perm gen manually?
>
> Andreas.