On 05/02/2013 12:56 AM, Greg Smith wrote:
> On 5/1/13 4:57 AM, Fabien COELHO wrote:
>> The use case of the option is to be able to generate a continuous gentle
>> load for functional tests, eg in a practice session with students or for
>> testing features on a laptop.
>
> If you add this to
> https://commitfest.postgresql.org/action/commitfest_view?id=18 I'll
> review it next month. I have a lot of use cases for a pgbench that
> doesn't just run at 100% all the time.
As do I - in particular, if time permits I'll merge this patch into my
working copy of pgbench so I can find the steady-state transaction rate
where BDR replication's lag is stable and doesn't increase continually.
Right now I don't really have any way of doing that, only measuring how
long it takes to catch up once the test run completes.
-- Craig Ringer http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services