On Sat, Dec 18, 2021 at 12:01:36PM +0100, Jean-Pierre Chrétien wrote:
> Le 18/12/2021 à 03:23, Scott Kostyshak a écrit :
> > If I do
> > 
> >    time lyx -e pdflatex UserGuide.lyx
> > 
> > I get big differences in timings if I do the above with master versus
> > with 2.3.0. I'm not sure these differences necessarily mean a
> > regression. I've definitely compiled master with different compile
> > flags.
> > 
> > Does anyone else see differences when comparing 2.3.0 (or 2.3.x) to
> > master with the above command?
> 
> Hello Scott,
> 
> Here I must run
> 
> time <lyx-version> -e pdf2 UserGuide.lyx
> 
> With 2.3.7dev:
> 
> real  0m9,749s
> user  0m8,459s
> sys   0m1,320s
> 
> 
> With 2.4.0dev (up to date):
> 
> real  0m31,623s
> user  0m22,924s
> sys   0m1,532s
> 
> Ration ~ 3

Thanks, Jean-Pierre. I wonder why you must export to pdf2. Using
"pdflatex" instead gives an error?

In any case, I see roughly the same ratio. I tried to do a bisect and
got to the following:

  commit 26ea1e14966c092a7b87c75c19b83a369e79aeb8
  Author: Juergen Spitzmueller <sp...@lyx.org>
  Date:   Sun Apr 22 19:06:46 2018 +0200
  
      Align fontenc with document fonts

But I'm not so confident in my bisect since performance issues are hard
to bisect. This commit also changes file format and prefs change, so
that might play a role.

Scott

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