Loading of expl3.ltx **extremely** slow on emulated runs

[Norbert Preining]

Hi all,

at Debian they got a report that loading expl3.ltx when building formats
is **extremely** slow when running under emulations:

1070150 at bugs.debian.org

Running fmtutil output through ts (timestamp utility from moreutils):

May 01 14:28:46 LaTeX2e <2024-06-01> pre-release-0 (develop 2024-5-1 branch)
May 01 14:28:46 (/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3.ltx
May 01 14:51:15 (/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3-code.tex)) hacks,
May 01 14:51:19 document commands, control, par, spacing, files, font encodings, lengths,

That is 23 **minutes** to load expl3-code.tex. Ok, the file is nearly 4k
lines, but still, 23 minutes seems to be excessive.

Any ideas?

Please keep the Cc

Best regards

Norbert

--
PREINING Norbert                              https://www.preining.info
arXiv / Cornell University   +   IFMGA Guide   +   TU Wien  +  TeX Live
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13