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


From: Stefan Monnier
Subject: bug#12796: Optimize `ido-completing-read' for larger lists with flex matching enabled
Date: Thu, 08 Nov 2012 09:05:14 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

>>> 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





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