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Date:      Wed, 2 Dec 2009 18:36:15 -0500
From:      "Robert N. M. Watson" <rwatson@freebsd.org>
To:        Antony Mawer <lists@mawer.org>
Cc:        freebsd-current@freebsd.org, David Naylor <naylor.b.david@gmail.com>
Subject:   Re: FreeBSD 8.0 Performance (at Phoronix)
Message-ID:  <481CD35B-0CDF-4E84-AC55-8825FE07CC9D@freebsd.org>
In-Reply-To: <ea2d4a5b0912020101t2651cacdocb05d41444b896e@mail.gmail.com>
References:  <200911301117.37950.naylor.b.david@gmail.com> <alpine.BSF.2.00.0912011320290.1155@fledge.watson.org> <ea2d4a5b0912020101t2651cacdocb05d41444b896e@mail.gmail.com>

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On 2 Dec 2009, at 04:01, Antony Mawer wrote:

> On Wed, Dec 2, 2009 at 12:25 AM, Robert Watson <rwatson@freebsd.org> =
wrote:
> ...
>>=20
>> For tests that depend on file system namespace operations, seeing a
>> measurement comparing ZFS directly would be interesting; likewise, =
perhaps
>> using async file system mounts on FreeBSD without soft updates.  =
Jeff's
>> forthcoming journaling changes would also be interesting to consider, =
but
>> I'm not sure to what extent he'll see performance improvements, or =
whether
>> it's just about the consistency improvements for his SU+J work.
>=20
> Is there any information about what these journaling changes are or
> what they involve? I would be interested to keep tabs on any ongoing
> work being done on journalling for UFS...

I'm not aware of detailed public descriptions yet, but with any luck =
we'll hear more in the near future. I'm very much looking forward to =
seeing it make it into -current, with the usual understanding that these =
things take a while to shake out...

Robert=



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