Re: Fragmenting memory

> Thx for the info. So it's only a problem if the MM can't merge the free
> chunks.

As I understand it, yes, since the merging is effectivly defragging. Take a
look at FastMM4 and BucketMM, I think there's a good amount of comments in
each(FastMM4 for sure) that helps explain how they work, they both use the
memory pools approach. I think there's also an article on the NexusDB site
that talks about fragmenting and how it effects the default Delphi MM. For
normal desktop apps its not really that big of a deal, the Delphi MM hasn't
changed at all since Delphi 2 as far as I know and it hasn't been that big
of a problem. Server apps, ie 24x7 type apps it is a problem and you'll see
memory usage, or address space usage slowly increase.


FastMM4 - look in the source code for comments, Pierre explains it quite
good:
http://sourceforge.net/projects/fastmm/

Nexus fragmentation info:
http://www.nexusdb.com/showpage.asp?Id=127

DD


.

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