Re: Process wakeups when idle and power consumption

On May 5, 2011, at 4:08 PM, Alvaro Herrera wrote:

> Excerpts from Peter Geoghegan's message of jue may 05 16:49:25 -0300 2011:
> 
>> I'll need to take a look at statistics, autovacuum and Logger
>> processes too, to see if they present more subtle opportunities for
>> reduced idle power consumption.
> 
> More subtle?  Autovacuum wakes up once per second and it could sleep a
> lot longer if it weren't for the loop that checks for signals.  I think
> that could be improved a lot.

Could kqueue be of use here? Non-kqueue-supporting platforms could always fall back to the existing select().

Cheers,
M