Re: [HACKERS] kqueue

Hi Thomas,

On 28/09/2018 00:55, Thomas Munro wrote:
> I would like to commit this patch for PostgreSQL 12, based on this
> report.  We know it helps performance on macOS developer machines and
> big FreeBSD servers, and it is the right kernel interface for the job
> on principle.  Matteo Beccati reported a 5-10% performance drop on a
> low-end Celeron NetBSD box which we have no explanation for, and we
> have no reports from server-class machines on that OS -- so perhaps we
> (or the NetBSD port?) should consider building with WAIT_USE_POLL on
> NetBSD until someone can figure out what needs to be fixed there
> (possibly on the NetBSD side)?

Thanks for keeping me in the loop.

Out of curiosity (and time permitting) I'll try to spin up a NetBSD 8 VM
and run some benchmarks, but I guess we should leave it up to the pkgsrc
people to eventually change the build flags.


Cheers
-- 
Matteo Beccati

Development & Consulting - http://www.beccati.com/