Re: Initial performance tuning question

> Lawrence Wetsel <trey_wetsel(at)mac(dot)com> hat am 15. März 2016 um 20:43
> geschrieben:
>
>
>
> Hello,
>
>
>
> I am setting up a PostgreSQL instance in the cloud for a customer and a couple
> of months ago I couldn't spell PostgreSQL.
>
>
>
> I have a few questions:
>
> What should I look for in the way of performance tuning/how should I set it
> up? RHEL and CentOS will be used. RAM...probably between 3-4G. I'm not sure
> about the storage type. As for what I'm tuning...I'm more interested in
> response times than transactions per second. Could I create a script to
> automate the performance tuning?
>

As a rule of thumb you can set shared_buffers to 1/4 of RAM, and you can /
should increase work_mem from default 4M to more, maybe 16M or so, but that
depends on your workload. There is more, but that depends all on your workload.

--
Andreas Kretschmer
http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services