Re: better atomics - v0.5

From: andres(at)anarazel(dot)de (Andres Freund)
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Geoghegan <pg(at)heroku(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Ants Aasma <ants(at)cybertec(dot)at>
Subject: Re: better atomics - v0.5
Date: 2014-06-25 17:45:31
Message-ID: 20140625174531.GH24114@awork2.anarazel.de
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On 2014-06-25 10:39:53 -0700, Josh Berkus wrote:
> On 06/25/2014 10:14 AM, Andres Freund wrote:
> > Hi,
> >
> > [sorry for the second copy Robert]
> >
> > Attached is a new version of the atomic operations patch. Lots has
> > changed since the last post:
>
> Is this at a state where we can performance-test it yet?

Well, this patch itself won't have a performance impact at all. It's
about proving the infrastructure to use atomic operations in further
patches in a compiler and platform independent way.
I'll repost a new version of the lwlocks patch (still fighting an issue
I introduced while rebasing ntop of Heikki's xlog scalability/lwlock
merger) soon. Addressing the review comments Amit has made since.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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