| From: | Markus Wanner <markus(at)bluegap(dot)ch> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, PostgreSQL-development Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: dynamically allocating chunks from shared memory |
| Date: | 2010-08-09 19:02:33 |
| Message-ID: | 4C6050C9.6050802@bluegap.ch |
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| Lists: | pgsql-hackers |
On 08/09/2010 08:50 PM, Bruce Momjian wrote:
> You effectively have to add infrastructure to add/remove shared memory
> segments to match memory requests. It is another step, but it is the
> same behavior.
That's of no use without a dynamic allocator, I think. Or else it is a
vague description of a dynamic allocator.
I'm approaching the problem from another perspective: trying to
implement a dynamic allocator on top of a fixed size memory pool, first.
Once we have that, we may start to think about dynamically adding or
removing underlying segments.
Regards
Markus Wanner
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