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Date:      Sat, 13 Oct 2012 14:22:09 -0500
From:      Pedro Giffuni <pfg@FreeBSD.org>
To:        freebsd-current@freebsd.org
Subject:   Re: new DragonFly-3.2 scheduler and PostgreSQL comparision with FreeBSD 9.1-RC1
Message-ID:  <5079BF61.20704@FreeBSD.org>
In-Reply-To: <1350153522261-5751733.post@n5.nabble.com>
References:  <CAJ-VmomzubLrG7apd2tFObo2C_C2J4jRanwdR6foY-x3wcRSuA@mail.gmail.com> <1350153522261-5751733.post@n5.nabble.com>

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Hello;

On 10/13/2012 13:38, Jakub Lach wrote:
> I'm not at all up to date with DragonFly, so does anybody know
> what did they change so spectacularly between 3.0/3.2?
>

I stopped following Dragonfly a while ago but it seems like
it was some VM SMP related work:

http://www.dragonflybsd.org/release30/


Also note that linux had to do some scheduler changes for PostgreSQL too:

http://lwn.net/Articles/518329/

cheers,

Pedro.

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