| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Markus Wanner <markus(at)bluegap(dot)ch> |
| 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 18:49:15 |
| Message-ID: | 201008091849.o79InFi13563@momjian.us |
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| Thread: | |
| Lists: | pgsql-hackers |
Markus Wanner wrote:
> On 08/09/2010 08:33 PM, Bruce Momjian wrote:
> > Robert Haas wrote:
> >> You probably wouldn't do either of those things. You'd just allocate
> >> small chunks here and there for whatever you need them for.
> >
> > Well, then we do that with shared memory then --- my point is that it is
> > the same problem with threads or processes.
>
> That's what my patch allows you to do, yes. Currently you are bound to
> pre-allocate shared memory at startup. Or how would you allocate small
> chunks from shared memory at the moment?
We don't --- we allocate it all at startup.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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