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Date: Tue, 22 Oct 2013 19:59:47 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: aurfalien <aurfalien@gmail.com>
Subject: Re: FreeBSD, Centos and ZFS - SOLVED
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On Tue, 22 Oct 2013, aurfalien wrote:

>
> On Oct 20, 2013, at 9:04 AM, Mark Felder wrote:
>
>> On Sat, Oct 19, 2013, at 14:31, aurfalien wrote:
>>>
>>> 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.
>>>
>>
>> FreeBSD 10 also has L2ARC compression
>>
>> http://svnweb.freebsd.org/base?view=revision&revision=251478
>
> OMG, what a relief... the ~30% diff in performance was due to a BIOS setting, in particular this one;
>
> Intel Turbo Boost Technology
> Enhanced Intel SpeedStep Tech
>
> I disabled both.

Enable them both and also enable powerd on FreeBSD in /etc/rc.conf so it 
can take advantage of the first.

> In fact, FreeBSD is showing a tad better now then CentOS.  I have files if any one is interested in viewing.

With Turbo mode on, it may go even faster.