Subject: bug#12796: Optimize `ido-completing-read' for larger lists with flex matching enabled

From: Stefan Monnier <[email-masked]>
Date: Thu, 08 Nov 2012 09:05:14 -0500

>>> So do you mind installing the following small change for 24.3 that
>>> greatly improves ido performance:
>> I guess it's OK, yes.
> Can I incorporate your suggestion on removing the backtracking issue?

Not for 24.3, no, but on the trunk, of course, yes.

> I have found cases where flex matching perform badly but with your
> suggestion, for example, cut the time from 4.8s to 0.3s.

Cool,

        Stefan