Re: [Emacs-diffs] comment-cache 223d16f 2/3: Apply `comment-depth' text properties when calling `back_comment'.

[martin rudalics]

> OK.  I've just updated both emacs-25 and master, and built them normally
> (i.e. with default optimisation and no debugging info).  The timings I
> see (in seconds) are:
>
>              emacs-25          master
> foo          2.62              2.78
> bar         13.64             13.93
>
> I honestly don't know why you're seeing a factor of 20 difference.

Probably because I build with debug information.  With optimized builds
I get more or less the same figures as you do.

> I
> doubt it's got anything to do with CC Mode.  Perhaps you could tell me
> what flags (e.g. CFLAGS) you're using in your non-optimised builds,

CFLAGS='-O0 -g3' --with-wide-int --enable-checking=yes 
--enable-check-lisp-object-type=yes

> and
> I can rebuild and try again.

Please do that.

martin