Horton

Re: kqueue

Matteo Beccati <php@beccati.com>

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From: Matteo Beccati <php@beccati.com>
To: Thomas Munro <thomas.munro@enterprisedb.com>, Keith Fiske <keith@omniti.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Andres Freund <andres@anarazel.de>, Heikki Linnakangas <hlinnaka@iki.fi>, Marko Tiikkaja <marko@joh.to>, Alvaro Herrera <alvherre@2ndquadrant.com>, Robert Haas <robertmhaas@gmail.com>, Pg Hackers <pgsql-hackers@postgresql.org>, Noah Misch <noah@leadboat.com>
Date: 2016-09-20T12:19:38Z
Lists: pgsql-hackers 
Hi,

On 16/09/2016 05:11, Thomas Munro wrote:
> Still no change measurable on my laptop.  Keith, would you be able to
> test this on your rig and see if it sucks any less than the last one?

I've tested kqueue-v6.patch on the Celeron NetBSD machine and numbers 
were constantly lower by about 5-10% vs fairly recent HEAD (same as my 
last pgbench runs).


Cheers
-- 
Matteo Beccati

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

Commits

  1. Add kqueue(2) support to the WaitEventSet API.

  2. Add WL_EXIT_ON_PM_DEATH pseudo-event.

  3. Be conservative about alignment requirements of struct epoll_event.

  4. Make idle backends exit if the postmaster dies.