[VW 7.9] garbage collector questions

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[VW 7.9] garbage collector questions

Terry Raymond

Why a medium grained and large grained memory policy? What are the tradeoffs?

 

Has the garbage collector been changed so 3 invocations are no longer required

to completely collect and compact memory?

 

Do you have any plans to improve data compaction?

 

Terry

 

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Terry Raymond

Crafted Smalltalk

80 Lazywood Ln.

Tiverton, RI  02878

(401) 624-4517      [hidden email]

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Re: [VW 7.9] garbage collector questions

Andres Valloud-6
Hello,

On 8/9/2012 9:01 AM, Terry Raymond wrote:
> Why a medium grained and large grained memory policy? What are the
> tradeoffs?

The tradeoff is speed vs memory usage.  The medium grain memory policy
is a bit more conservative, and it's a bit of a less radical departure
from the days of MemoryPolicy.

> Has the garbage collector been changed so 3 invocations are no longer
> required to completely collect and compact memory?

No.  However, I'd be interested to know if you see much of a difference
between 1 or 3 invocations.  Of course I can do something that does
effectively three invocations per primitive call, but I'm assuming
that's not what you're looking for.  How is this an issue for you?

> Do you have any plans to improve data compaction?

What kinds of improvements do you have in mind?

Andres.
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