Re: Redisplay: NS port, high CPU load

[Anders Lindgren <andlind@gmail.com>]

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>
> In any case, we need to understand what triggers the expensive toolbar
> update.


Try to clear out one of :post-read-conversion and :pre-write-conversion to
see which of the two is the culprit. (While you're at it, try to clear out
both first just to make sure we're barking up the right tree.)

I just saw one suspicious thing:
`ucs-normalize-hfs-nfd-pre-write-conversion' change current buffer but
doesn't restore it, whereas the post-read function use save-excursion.

    -- Anders

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