Re: [PATCH] add --throttle to pgbench (submission 3)

Fabien COELHO <coelho@cri.ensmp.fr>

From: Fabien COELHO <coelho@cri.ensmp.fr>
To: Craig Ringer <craig@2ndquadrant.com>
Cc: Greg Smith <greg@2ndQuadrant.com>, PostgreSQL Developers <pgsql-hackers@postgresql.org>
Date: 2013-05-28T08:13:46Z
Lists: pgsql-hackers
>>> 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.

You can try to use and improve the --progress option in another patch 
submission which shows how things are going.

-- 
Fabien.