[Libreoffice-bugs] [Bug 78254] Substantial performance deterioration by scroll through cells via macro in LibreOffice Calc

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=78254

--- Comment #16 from Michael Meeks <michael.meeks at collabora.com> ---
Priority-wise, the real question is if any hackers want to spend more time
trying to fix it =) there is no real way to encourage volunteers to do that by
prioritizing it differently. The best way to affect change here is to eg. add
some SAL_DEBUGs in the code there to print out what is going on, and/or try to
work out what is going on - why do we adjust the heights here ? do we do that
repeatedly ? what rows are being measured ? is there some way of significantly
optimizing this by looking at spans instead of individual rows etc. etc. anyone
can do that work - if almost any semi-technical person can spend a few days on
it they should make progress. Getting a good bisection would also help. Noel's
commit description doesn't seem to match the callgrind trace.

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