Re: Fwd: sensible configuration of max_connections

Justin <zzzzz.graf@gmail.com>

From: Justin <zzzzz.graf@gmail.com>
To: Sam Gendler <sgendler@ideasculptor.com>
Cc: Steve Atkins <steve@blighty.com>, "pgsql-generallists.postgresql.org" <pgsql-general@lists.postgresql.org>
Date: 2020-02-07T19:14:37Z
Lists: pgsql-general
On Fri, Feb 7, 2020 at 1:56 PM Sam Gendler <sgendler@ideasculptor.com>
wrote:

> Benchmarks, at the time, showed that performance started to fall off due
> to contention if the number of processes got much larger.  I imagine that
> the speed of storage today would maybe make 3 or 4x core count a pretty
> reasonable place to start.  There will be a point of diminishing returns
> somewhere, but you can probably construct your own benchmarks to determine
> where that point is likely to be for your workload.
>

I wonder if anyone has run benchmark like that lately?  Doing such a
benchmark maybe worth while given that so much is now running either in the
cloud or running in a VM or some other kind of Container.     all this
abstraction from the hardware layer surely has had to have an impact on the
numbers and rules of thumb...

I still run on real hardware and spinning disk.