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minor restrpos / markpos optimization

From: Neil Conway <neilc(at)samurai(dot)com>
To: pgsql-patches <pgsql-patches(at)postgresql(dot)org>
Subject: minor restrpos / markpos optimization
Date: 2004-11-17 00:20:02
Message-ID: 1100650802.9430.7.camel@localhost.localdomain (view raw, whole thread or download thread mbox)
Lists: pgsql-patches
This patch makes a minor optimization to the restrpos() and markpos()
implementations for btree and hash: to bump the reference count on a
buffer, it is more efficient to use IncrBufferRefCount() than to do a
ReadBuffer (for one thing we needn't acquire the BufMgrLock; we also
don't need to do a hash table lookup etc.)

Barring any objections I will apply to HEAD before end of day.


Attachment: readbuffer-opt-1.patch
Description: text/x-patch (2.0 KB)


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