Re: checkpoint patches

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Stephen Frost <sfrost@snowman.net>
Cc: pgsql-hackers@postgresql.org, Greg Smith <greg@2ndquadrant.com>
Date: 2012-03-21T19:38:18Z
Lists: pgsql-hackers
On Wed, Mar 21, 2012 at 3:34 PM, Stephen Frost <sfrost@snowman.net> wrote:
> Robert,
>
> * Robert Haas (robertmhaas@gmail.com) wrote:
>> Thoughts?
>
> It was my impression that these patches were much about improving
> overall tps and more about reducing latency spikes for specific
> transactions that get hit by a checkpoint happening at a bad time.
>
> Are there any reductions in max latency for these pgbench runs..?
> Assuming that's information you can get..

It looks like I neglected to record that information for the last set
of runs.  But I can try another set of runs and gather that
information.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company