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Subject: notmuch in Emacs very slow
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From: notmuch@bontempi.net
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Message-Id: <A232351A-27CE-4B6A-B6A4-8EA79F8A460F@bontempi.net>
To: notmuch@notmuchmail.org
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Date: Sat, 29 Oct 2011 18:10:04 -0000

Hello,

I would like to report my experience with notmuch (newbie here).

I absolutely love it. I would like very much to continue using it, but I =
am having a speed issue from inside Emacs.

I have installed notmuch 0.9, on OS X 10.6, using of course the chert =
database format. I am also using Emacs 24.0.90.1 on a quad-core Intel =
Core i7 (no SSD though).

I started doing 'notmuch new' on a Maildir folder with about 30000 =
messages (about one fourth of my archive).

At beginning notmuch was indexing about 200 msgs/sec. The more it =
indexed, the slower it became. After about 20000 msgs it slowed down to =
70 msgs/sec. I am not sure if that is a behaviour due to Xapian.

Anyway, after it finished that first part, starting notmuch from inside =
emacs, it says:

"Welcome to notmuch. You have 34,366 messages."

Once I start browsing the inbox (34,208), Emacs displays the initial =
screenful, but the whole list takes quite a while to load, about 50 =
seconds. After that time, in the status bar I see "Top of 1.1M".

That happens every time I am browsing the inbox, in order to assign =
proper tags.

The real issue for me, though, is that scrolling down the list has a =
noticeable delay, enough to make it basically unusable.

Is there something I do not know that I should do to improve that speed =
(either from within Emacs, or in notmuch config file?

I would be very grateful for any advice or pointer on how to speed up =
the notmuch experience.

Thank you,

Sam=