lazy-lock vs. jit-lock

[Ian Zimmerman]

Can anyone comment on the relative advantages of these kinds of
font-locking?  jit-lock seems to be the default in Emacs 21.4, but I
fount that in some buffers (not necessarily large ones) whole chunks are
left unfontified.  Waiting for them to be "stealthily" fontified also
doesn't help; only font-lock-fontify-buffer does.

Customizing font-lock-support-mode and setting it to lazy-lock-mode
eliminates the problem.  So I'd just like to know what I'm missing
this way.

-- 
A true pessimist won't be discouraged by a little success.