PostgreSQL Memory Management

From: Umar Farooq <umarfm13(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: PostgreSQL Memory Management
Date: 2009-03-09 16:39:47
Message-ID: 12e94ce30903090939r18d5cbd9i5e5a93777e583f48@mail.gmail.com
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Hi All,

I have a few general question about PGSQL's internals of memory management
and I think this list is appropriate for that. I am interested to find out:

(1) how does PostgreSQL internally use physical memory allocated to it?
(2) what are different type of allocation units?
(3) what is a particular allocation unit used for e.g., to store log-tail,
query plans, procedure cache etc.?

Thanks,
-Umar

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