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Date:      Tue, 20 Nov 2012 18:27:54 -0500
From:      Mike Jakubik <mike.jakubik@intertainservices.com>
To:        <freebsd-performance@freebsd.org>
Subject:   Re: new DragonFly-3.2 scheduler and PostgreSQL comparision with FreeBSD 9.1-RC1
Message-ID:  <9d0d4c08b2b18bcaef1a233d28f8079d@intertainservices.com>
In-Reply-To: <50ABFC9A.80708@quip.cz>
References:  <507832E3.1050801@quip.cz> <CAJ-VmomzubLrG7apd2tFObo2C_C2J4jRanwdR6foY-x3wcRSuA@mail.gmail.com> <b1cf29ee9a4442df56a718cedd0516e1@intertainservices.com> <50ABFC9A.80708@quip.cz>

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On 2012-11-20 04:56 PM, Miroslav Lachman wrote:
> Mike Jakubik wrote:

>> These numbers show very significant improvements. Any
>> possibility/interests in porting this scheduler to FreeBSD or this 
>> too
>> much work? I know many have and still complain about our current 
>> scheduler.
>
> Just for the record. There is Phoronix benchmark comparing DF 3.0.3,
> 3.2.1 and Ubuntu 12.10 showing that scheduler tweaks was good for
> pgbench, but not so significant for other tasks.
>
> http://www.phoronix.com/scan.php?page=article&item=dragonfly_linux_32
>


Indeed it seems like the performance gains were targeted at PostgreSQL, 
though performance has not dropped in any other areas according to this 
benchmark.




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