Date: Mon, 30 Mar 2015 07:06:37 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: Anna Schumaker <Anna.Schumaker@netapp.com>,
        Christoph Hellwig <hch@infradead.org>,
        "J. Bruce Fields" <bfields@fieldses.org>,
        Marc Eshel <eshel@us.ibm.com>,
        "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
        linux-nfs-owner@vger.kernel.org, xfs@oss.sgi.com
Subject: Re: [PATCH v3 3/3] NFSD: Add support for encoding multiple segments
Message-ID: <20150330140637.GA26244@infradead.org>
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On Thu, Mar 26, 2015 at 11:32:25AM -0400, Trond Myklebust wrote:
> So there is a clear win in the 100% hole case here, but otherwise the
> statistical fluctuations are dominating the numbers. Can you get us a
> little more stats and then perhaps run the results through nfsometer?

And that's just the uncached reads if I understand the thread correctly.
The cached case isn't uncommon in real life, so regressing it isn't
really an option either.