On Sat, 23 Apr 2011 07:18:52 +0200, Florian Friesdorf <flo@chaoflow.net> wrote:
> On Fri, 22 Apr 2011 22:18:09 +0200, Pieter Praet <pieter@praet.org> wrote:
> Is this the switch from xapian 1.0.x to 1.2.x or are further steps
> necessary?
> 
> Are there instructions on how to do the switch? For the mailing list
> archive a link would be great - a quick search for 'xapian flint chert'
> was unsuccessful.
Notmuch has been very slow for me, and I decided to give cert a try. A
search turned up this message:
http://notmuchmail.org/pipermail/notmuch/2010/001105.html 
as well as: http://notmuchmail.org/pipermail/notmuch/2011/004048.html

It seems you have to rebuild the database with "XAPIAN_PREFER_CHERT=1
notmuch new"

I have done this, and it does seemed to have sped up notmuch. 

  --Simon