LuaHBTeX from TL26 is significantly slower than in TL25

Petr Olsak <[email protected]>
Newsgroups gmane.comp.tex.live
Message-ID <[email protected]>
Hello,

I tried TL pretest and found that LuaHBTeX 1.24 (from TL26) is 
significantly slower than 1.22 from TL25.

For example time optex optex-doc does:

This is LuaHBTeX, Version 1.24.0 (TeX Live 2026)
  restricted system commands enabled.
(/home/olsak/texmf/tex/optex/doc/optex-doc.tex
...

real    0m17.367s
user    0m16.836s
sys    0m0.429s

but time optex optex-doc with TL 2025 does:

This is LuaHBTeX, Version 1.22.0 (TeX Live 2025)
  restricted system commands enabled.
(/home/olsak/texmf/tex/optex/doc/optex-doc.tex
...

real    0m9.676s
user    0m9.205s
sys    0m0.361s

Analogical time problem for another documents.

I sent this issue to dev-luatex and Max Charnoff answered, that it may 
be due to compiling options:

> If you recompile LuaHBTeX from source with "-O2" or "-O3" and no "-g"
> arguments, does the problem go away?

   https://tug.org/pipermail/luatex/2023-August/007864.html

Is TL26 pretest compiled with different options than TL25?

Petr O.
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