Re: [rvm-research] To create a space using VMRequest

> Liangliang,
>
> In that example, the request is for a discontiguous space.   These  
> spaces have no pre-defined start or length.  They grow their virtual  
> memory footprint on demand.   By contrast other methods of VMRequest  
> can request specific regions of the virtual address space for the space.
>
> The choice of which to use depends on whether you need specific  
> address ranges to be pinned down.
>
> --Steve
>
> On 15/06/2009, at 10:16 PM, Liangliang Tong wrote:
>
>  
>> Hi All,
>>
>> Like the following code in org.mmtk.plan.MS.java:
>>
>> /public static final MarkSweepSpace msSpace = new MarkSweepSpace("ms",
>> DEFAULT_POLL_FREQUENCY, VMRequest.create());/
>>
>> it takes VMRequest.create() as a parameter, yet in VMRequest.java,  
>> this
>> method is implemented like this:
>>
>> /  public static VMRequest create() {
>>    return new VMRequest(REQUEST_DISCONTIGUOUS, Address.zero(),
>> Extent.zero(), 0f, false);
>>  }/
>>
>> Doesn't this method return a space starting with address zero and  
>> ending
>> with zero?
>> Thanks in advance.
>>
>> --
>> Regards,
>> Liangliang Tong
>>
>>
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>
>
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