Re: checkpoint patches - Mailing list pgsql-hackers

From Robert Haas
Subject Re: checkpoint patches
Date
Msg-id CA+TgmoYHj05K12ygHJRKmoShpvA7axRdq64Sk8sheX0YrL6fGA@mail.gmail.com
Whole thread Raw
In response to Re: checkpoint patches  (Stephen Frost <sfrost@snowman.net>)
Responses Re: checkpoint patches  (Robert Haas <robertmhaas@gmail.com>)
List 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


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