DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:sender:in-reply-to:references:date
	:x-google-sender-auth:message-id:subject:from:to:content-type
	:content-transfer-encoding;
	b=A/aUWJCSAobrxopSknSAM0NM6r4c+VqCo84mxUWT7R1nQ2jQB6jsxjUjwHNBCVXD1h
	Y3ZpJArRnxBqFDXLM6LHmZyyT7jQ9V/eeDD/9KKtaRiacFf4QipIEPNtovS6BPn8ZdXb
	/HcDVaANxCxsC4tCVIdXt2TyE2hV9xhu1aACQ=
MIME-Version: 1.0
Sender: amdragon@gmail.com
In-Reply-To: <1291928396-27937-1-git-send-email-amdragon@mit.edu>
References: <1291928396-27937-1-git-send-email-amdragon@mit.edu>
Date: Sun, 13 Feb 2011 15:25:48 -0500
Message-ID: <AANLkTiknTgHruLKKYsVo-r9319VHxmuXcw5oxOLPzHQ_@mail.gmail.com>
Subject: Re: [PATCH 0/5] Fetch all message metadata in a single pass
From: Austin Clements <amdragon@mit.edu>
To: notmuch@notmuchmail.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Precedence: list

I've rebased this against current master and fixed a few merge
conflicts.  The rebased patches are on the eager-metadata-v3 branch of
  http://awakening.csail.mit.edu/git/notmuch.git

On Thu, Dec 9, 2010 at 3:59 PM, Austin Clements <amdragon@mit.edu> wrote:
> This is the second of the two optimizations I described a while ago,
> and brings my inbox search down to 1.811 seconds, 2.5X faster than it
> was originally.
>
> This optimization is based on the observation that Xapian decompresses
> a document's term list every time you iterate over it. =A0As a result,
> notmuch can decompress the beginning of a single term list quite a few
> times. =A0This patch series combines all of this into a single pass that
> is only slightly more expensive than fetching one metadata field used
> to be, but offers a huge win in the common case where a message object
> is used for multiple metadata fields.
>
> _______________________________________________
> notmuch mailing list
> notmuch@notmuchmail.org
> http://notmuchmail.org/mailman/listinfo/notmuch
>