FreeBSD, Centos and ZFS - SOLVED
aurfalien at gmail.com
Wed Oct 23 17:53:11 UTC 2013
On Oct 22, 2013, at 6:59 PM, Warren Block wrote:
> 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
>> 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.
Yep, confirmed, got about ~1000 IOPS more by doing this (via fio).
So on to the other pots regarding tuning powerd.
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