Re: Minor optimisation of XLogInsert()
Robert Haas <robertmhaas@gmail.com>
From: Robert Haas <robertmhaas@gmail.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-11-16T14:33:16Z
Lists: pgsql-hackers
On Tue, Nov 15, 2011 at 6:24 AM, Simon Riggs <simon@2ndquadrant.com> wrote: > Patch adds cacheline padding around parts of XLogCtl. > > Idea from way back, but never got performance tested in a situation > where WALInsertLock was the bottleneck. > > So this is speculative, in need of testing to investigate value. I kicked off a round of benchmarking around this. I'll post results in a few hours when the run finishes. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company