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

[Paul Eggert]

martin rudalics wrote:
> So
> something's strange going on - the release branch is faster than master
> by a factor of 20 on both of my functions.  Can you investigate what's
> going on here?

Possibly you're seeing the effect of emacs-25 commit 
7352c6c695db8b90b63c2601277d64a32507d2bb, which was merged to master only in 
commit 63efcc268635dea78c6bd80749eae4ee2c72d717 (within the past 24 hours). If 
your master predates the later commit that could explain the symptoms you're seeing.