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More README src cleanups.

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Bruce Momjian
2008-03-21 13:23:29 +00:00
parent d287818eb5
commit fca9fff41b
41 changed files with 137 additions and 52 deletions
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src/backend/storage/buffer/README
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$PostgreSQL: pgsql/src/backend/storage/buffer/README,v 1.13 2008/03/20 17:55:15 momjian Exp $
$PostgreSQL: pgsql/src/backend/storage/buffer/README,v 1.14 2008/03/21 13:23:28 momjian Exp $
Notes About Shared Buffer Access Rules
--------------------------------------
======================================
There are two separate access control mechanisms for shared disk buffers:
reference counts (a/k/a pin counts) and buffer content locks. (Actually,

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src/backend/storage/lmgr/README
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$PostgreSQL: pgsql/src/backend/storage/lmgr/README,v 1.23 2008/03/20 17:55:15 momjian Exp $
$PostgreSQL: pgsql/src/backend/storage/lmgr/README,v 1.24 2008/03/21 13:23:28 momjian Exp $
Locking Overview
----------------
================
Postgres uses three types of interprocess locks:

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src/backend/storage/smgr/README
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# $PostgreSQL: pgsql/src/backend/storage/smgr/README,v 1.4 2008/03/20 17:55:15 momjian Exp $
$PostgreSQL: pgsql/src/backend/storage/smgr/README,v 1.5 2008/03/21 13:23:28 momjian Exp $
Storage Manager
---------------
===============
In the original Berkeley Postgres system, there were several storage managers,
of which only the "magnetic disk" manager remains. (At Berkeley there were