Question about MemoryService class.

[Y Srinivas Ramakrishna]

Hi Colin --

If you have a use case where 3 or more generations will
provide distinct advantages, please feel free to
propose an OpenJDK project for this and we'll be
happy to help you navigate around in the relevant parts of
the source code so you can get this done. The basic
functionality will likely be quite straightforward,
if tedious in some of the details, and in limiting
the performance impact upon the basic 2 generation system.

-- ramki

----- Original Message -----
From: "Colin(Du Li)" <dawn2004 at gmail.com>
Date: Saturday, February 7, 2009 11:08 am
Subject: Re: Question about MemoryService class.
To: hotspot-dev at openjdk.java.net


> Thanks a lot！
> I have fixed it.
> To constrain the two-generation collector makes the system less extensible.
> I wonder this part will be improve the the future.
> 
> 
> mandy.chung wrote:
> > 
> > Colin(Du Li) wrote:
> > 
> >>Hi, guys.
> >>
> >>Could you give me some information about MemoryService in hotspot. It
> seems
> >>like a tool to monitor the memory usage, right? But it only support 
> 2
> >>generations. I wanna divide the heap into three generations, so it gives
> me
> >>error information. Can I turn it off? Will it cause problems if I 
> turn it
> >>off. How can I turn it off without side effect?
> >>  
> >>
> > The memoryService and memory pool implementation is the VM support 
> for 
> > the java.lang.management API.  
> > 
> > You need to change the current implementation to support 3 
> generations.  
> > The memory pool/service implementation is not limited to 2 generations.
> > 
> > Mandy
> > 
> >>Thanks a lot!
> >>
> >>Colin(Du Li)
> >>  
> >>
> > 
> > 
> > 
> 
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