Incremental garbage collection

> Cheers,
> Alexandre
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> Alexandre Bergel  http://www.bergel.eu
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> http://www.smalltalkconsulting.com/papers/GCPaper/GCTalk%202001.htm
>
> see slides 46 & 47
>
> You need to have a tenure event, or a full GC to move the youngStart pointer
> past all previously allocated objects, thus promoting a previously allocated
> object from new space into old space.
>
> There is btw a primitive I added many years back
> primitiveForceTenure
>
> SystemDictionary>>forceTenure
>
> Understanding when and why you would want to use it is another question...
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>
> On 2010-05-10, at 9:02 AM, Igor Stasenko wrote:
>
>> On 10 May 2010 18:33, Alexandre Bergel <[hidden email]> wrote:
>>> Hi!
>>>
>>> The garbage collection offered by the Pharo VM has two divisions. One for
>>> young objects, and another for old objects. I was wondering when a young
>>> object become old? I start to have a pretty good idea for human beings, but
>>> I am not so sure for Pharo objects.
>>> Is it when the object survives its first garbage collection?
>>>
>> I'd say, whenever VM decides to change a youngStart pointer.
>> Its quite sophisticated, and having a lot of quirks & preconditions.
>> But after compaction (either incremental or full), it usually picks a
>> free memory region which will serve as a space
>> for newly created objects. After that, obviously, all objects, which
>> survived GC treated as old ones.
>>
>>
>>> Cheers,
>>> Alexandre
>>>
>>> --
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>>> Alexandre Bergel  http://www.bergel.eu
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>> Best regards,
>> Igor Stasenko AKA sig.
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