:: Re: [DNG] Memory management strateg…
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Autor: KatolaZ
Datum:  
To: Rainer Weikusat
CC: dng
Betreff: Re: [DNG] Memory management strategies.
On Mon, Feb 01, 2016 at 04:59:37PM +0000, Rainer Weikusat wrote:

[cut]

>
> The original slab allocator was implemented by Jeff Bonwick for the
> SunOS kernel (5, not 4) and it decidedly didn't work in this way. It
> used type-segregated, linked free lists and was based on some kind of
> underlying 'page allocator'. This can be used to limit internal
> fragmentation (memory lost due to bookkeeping overhead) and it's a good,
> generally scheme for dealin with many types of objects of discrete sizes
> but it's totally powerless agains external fragmention, ie, memory
> consumed by inactive objects of a certain kind which can't be reused
> because the inactive objects are interspersed with active ones.


Then I was simply mistaken :) Thanks Rainer for pointing that out.

Best

KatolaZ

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