Re: System load consideration before spawning parallel workers

On 8/1/16 2:17 AM, Gavin Flower wrote:
> Possibly look how make does it with the '-l' flag?
> 
> '-l 8' don't start more process when load is 8 or greater, works on 
> Linux at least...

The problem with that approach is that it takes about a minute for the
load averages figures to be updated, by which time you have already
thrashed your system.

You can try this out by building PostgreSQL this way.  Please save your
work first, because you might have to hard-reboot your system.

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