| 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 |
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| Lists: | pgsql-hackers pgsql-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 | Content-Type | Size |
|---|---|---|
| wal_checksum.v1.patch | text/x-patch | 17.6 KB |
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