On Mon, 2006-11-27 at 11:53 +0100, Georg Baum wrote: > Abdelrazak Younes wrote: > > > Abdelrazak Younes wrote: > >> Abdelrazak Younes wrote: > >>> Hello, > >>> > >>> It took a great deal of step by step debugging but my supposition was > >>> right, redoParagraph() is the culprit! > >>> The reason why the slowdown (and the csrss.exe) appears only in the > >>> line following a big formula is because of this code in rowpainter.C, > >>> line 1008: > >>> > >>> // Cache one paragraph above and one below > >>> // Note MV: this cannot be suppressed even for singlepar. > >>> // Try viewing the User Guide Mobius figure > >> > >> The funny thing is that trying to view this figure in UserGuide.lyx > >> crashes LyX even though this code is here... > > > > Even funnier is that removing this code solves the crash and the speed > > problem at the same time! > > > > Looks like my metrics cleanup has some nice side effects... I'm doubly > > good! :-) > > I don't understand at all. Can you please explain in more detail for > somebody who is not so familiar with that code? > > Why is caching the paragraph below and above not needed anymore? > Why was it needed formerly?
This is my doing... it was needed for coordinate cache reasons -- it would assert without. So much has changed in cache handling... I believe Abdel and am happy that this code can go now. Never was proud of it :-/ > Do you say that fontmetrics and paragraph breaking in math is too slow? I > would not understand that, because it is (according to Andre) basically > unchanged from 1.3 (and there it was quick enough).It rather looks to me > that it was called far too often when it was not needed. > > But anyway, it really looks like you are a multiple hero, since I am sure > that the remining questions can be answered easily. > > > Georg - Martin
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