Re: Info is slow in Emacs 22.0.50

[Juri Linkov]

>> These results indicate that the main source of the slowdown is the
>> menu items fontification code in `Info-fontify-node', and it is caused
>> by a large amount of Info menu items needed to be processed.
>
> While I still don't understand where the slowdown actually comes from
> (e.g. why do 1559 calls to put-text-property take 0.01s with -Q -D but then
> take 5.46s with a loaded .emacs?  Also more than half the elasped time is
> unaccounted for in the profile of the pathological case), we can always try
> and move some of Info-fontify-node into font-lock-keywords where jit-lock
> should help us stay nice and responsive.

Definitely worth trying.  But before doing that I want to understand
why in `emacs -Q -D' this is faster.

-- 
Juri Linkov
http://www.jurta.org/emacs/