Re: [rvm-research] Pre-Tenuring

Michael Bond <[email protected]> Mon, 13 Aug 2018 12:49:38 -0400
Newsgroups gmane.comp.java.jikes.rvm.devel
Message-ID <[email protected]>
Hi Shoaib,

I wonder if the Immix space doesn't automatically support (in a single 
Plan) both copying into it from a nursery and allocating into it via a 
mutator, at least not without some changes or reconfiguration? Trying 
out your pre-tenuring changes with GenCopy or GenMS would help to answer 
that question.

Cheers,
Mike

On 08/11/2018 09:33 AM, Eliot Moss wrote:
> On 8/10/2018 6:43 PM, Shoaib Akram wrote:
>> Nursery is placed at one end of the virtual heap. And all other 
>> spaces including the mature immix to the left of nursery. All 
>> pointers from the left of nursery into the nursery are caught by the 
>> barrier. So based upon this, mutator’s immix space is a mature space, 
>> which means, the problem should not be in pointer tracking.
>
> Ok - at this point the configuration is more clear, but we've 
> exhausted my thoughts
> as to what the issue might be.  I ask one of the more current 
> maintainers / coders
> of these GCs to speak up now :-) ...
>
> Best wishes - Eliot
>
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