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wal_checksum = on (default) | off

From: "Simon Riggs" <simon(at)2ndquadrant(dot)com>
To: <pgsql-patches(at)postgresql(dot)org>
Subject: wal_checksum = on (default) | off
Date: 2007-01-04 14:27:56
Message-ID: 1167920877.20749.105.camel@silverbirch.site (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
In this thread, I outlined an idea for reducing cost of WAL CRC checking
http://archives.postgresql.org/pgsql-hackers/2006-10/msg01299.php

wal_checksum = on (default) | off

Recovery can occur with/without same setting of wal_checksum, to avoid
complications from crashes immediately after turning GUC on.

Patch enclosed here against CVS HEAD, passes make check.

Useful reduction in CPU for both normal operation and recovery.

-- 
  Simon Riggs             
  EnterpriseDB   http://www.enterprisedb.com


Attachment: wal_checksum.v1.patch
Description: text/x-patch (17.6 KB)

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