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Date:      Tue, 22 Oct 2013 20:20:29 -0700
From:      aurfalien <aurfalien@gmail.com>
To:        Warren Block <wblock@wonkity.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD, Centos and ZFS - SOLVED
Message-ID:  <582DEBF0-5745-4E65-AEEF-36C11A631F4E@gmail.com>
In-Reply-To: <alpine.BSF.2.00.1310221957500.89571@wonkity.com>
References:  <CBA24BB3-4A57-428C-B342-4BEB678B8D43@gmail.com> <1381600575.18393.33219025.5D7B78D0@webmail.messagingengine.com> <8CA809B3-1692-4760-A63F-9D7451EB49BD@gmail.com> <525D143B.50202@gmail.com> <DF3E552D-D2E6-464C-88EA-7AF34E8329CC@gmail.com> <1382285088.2462.36238881.1AA6BB17@webmail.messagingengine.com> <25C055B9-4A19-46C8-B78E-AC8BD6E00CD9@gmail.com> <alpine.BSF.2.00.1310221957500.89571@wonkity.com>

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On Oct 22, 2013, at 6:59 PM, Warren Block wrote:

> On Tue, 22 Oct 2013, aurfalien wrote:
>=20
>>=20
>> On Oct 20, 2013, at 9:04 AM, Mark Felder wrote:
>>=20
>>> On Sat, Oct 19, 2013, at 14:31, aurfalien wrote:
>>>>=20
>>>> ZoL comes with a little interesting feature; arc2 compression, =
which does
>>>> seem to enhance performance all around.  I disabled this in CentOS =
to
>>>> level the playing field.
>>>>=20
>>>=20
>>> FreeBSD 10 also has L2ARC compression
>>>=20
>>> http://svnweb.freebsd.org/base?view=3Drevision&revision=3D251478
>>=20
>> OMG, what a relief... the ~30% diff in performance was due to a BIOS =
setting, in particular this one;
>>=20
>> Intel Turbo Boost Technology
>> Enhanced Intel SpeedStep Tech
>>=20
>> I disabled both.
>=20
> Enable them both and also enable powerd on FreeBSD in /etc/rc.conf so =
it can take advantage of the first.
>=20
>> In fact, FreeBSD is showing a tad better now then CentOS.  I have =
files if any one is interested in viewing.
>=20
> With Turbo mode on, it may go even faster.

Thats interesting, I will and report back.

Since this will be a rather heavily utilized NFS server (perhaps CIFS =
later), how do I ensure powerd doesn't lullaby the server to sleep or at =
least slow it down during mellow periods?

- aurf=20





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