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Date:      Wed, 26 Aug 2015 23:20:15 -0700
From:      Marcus Reid <marcus@blazingdot.com>
To:        Vick Khera <vivek@khera.org>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: Options for zfs inside a VM backed by zfs on the host
Message-ID:  <20150827062015.GA10272@blazingdot.com>
In-Reply-To: <20150827061044.GA10221@blazingdot.com>
References:  <CALd%2BdcfJ%2BT-f5gk_pim39BSF7nhBqHC3ab7dXgW8fH43VvvhvA@mail.gmail.com> <20150827061044.GA10221@blazingdot.com>

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On Wed, Aug 26, 2015 at 11:10:44PM -0700, Marcus Reid wrote:
> On Wed, Aug 26, 2015 at 05:25:52PM -0400, Vick Khera wrote:
> > Opinions? Preferably well-reasoned ones. :)
> 
> However, having the ARC eating up lots of memory twice seems pretty
> bletcherous.  You can probably do some tuning to reduce that, but I
> never liked tuning the ARC much.

I just realized that you can turn primarycache off per-dataset.  Does it
make more sense to turn primarycache=none on the zvol on the host, or on
the datasets in the vm?  I'm thinking on the host, but it might be worth
experimenting.

Marcus



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