programming.cls is slow

[krono]

Compared with other article bundles, programming is slow:

(23 page Programming paper, 2 figures, few math and listings)

Timings	pdflatex	lualatex	xelatex
Programming	14.100	23.551	17.266
Article (base LaTeX)	5.085	6.804	5.428
Article (base LaTeX) (otf Fonts: LMR)	5.068	7.068	5.480
Article (KOMA)	5.751	7.656	5.930
Article (KOMA) (otf Fonts: LMR)	5.733	7.827	6.250
IEEEtran	5.373	6.499	5.119
IEEEtran (otf fonts: Gyre [Times,Helvt,Cour])	5.319	7.449	5.514
JFP	5.585	7.187	5.563
JFP (otf fonts: Gyre [Times,Helvt,Cour])	5.615	8.138	6.294

Thanks to @shriram and @samth for pointing this out.

All timings

Programming
pdflatex paper  12,76s user 1,20s system 98% cpu 14,100 total
lualatex paper  20,84s user 2,38s system 98% cpu 23,551 total
xelatex paper  15,55s user 1,77s system 100% cpu 17,266 total

Article (base LaTeX)
pdflatex paper.tex  4,55s user 0,49s system 99% cpu 5,085 total
lualatex paper.tex  6,12s user 0,67s system 99% cpu 6,804 total
xelatex paper.tex  4,73s user 0,60s system 98% cpu 5,428 total

Article (base LaTeX) (otf Fonts: LMR)
pdflatex paper.tex  4,56s user 0,49s system 99% cpu 5,068 total
lualatex paper.tex  6,36s user 0,69s system 99% cpu 7,068 total
xelatex paper.tex  4,99s user 0,60s system 101% cpu 5,480 total

Article (KOMA)
pdflatex paper.tex  5,11s user 0,57s system 98% cpu 5,751 total
lualatex paper.tex  6,81s user 0,77s system 99% cpu 7,656 total
xelatex paper.tex  5,35s user 0,66s system 101% cpu 5,930 total

Article (KOMA) (otf Fonts: LMR)
pdflatex paper  5,15s user 0,55s system 99% cpu 5,733 total
lualatex paper  7,04s user 0,76s system 99% cpu 7,827 total
xelatex paper  5,54s user 0,65s system 98% cpu 6,250 total

IEEEtran
pdflatex paper.tex  4,80s user 0,52s system 99% cpu 5,373 total
lualatex paper.tex  5,77s user 0,69s system 99% cpu 6,499 total
xelatex paper.tex  4,62s user 0,58s system 101% cpu 5,119 total

IEEEtran (otf fonts: Gyre [Times,Helvt,Cour])
pdflatex paper.tex  4,69s user 0,57s system 98% cpu 5,319 total
lualatex paper.tex  6,61s user 0,81s system 99% cpu 7,449 total
xelatex paper.tex  4,94s user 0,65s system 101% cpu 5,514 total

JFP
pdflatex paper  4,96s user 0,60s system 99% cpu 5,585 total
lualatex paper  6,35s user 0,80s system 99% cpu 7,187 total
xelatex paper  5,01s user 0,66s system 101% cpu 5,563 total


JFP (otf fonts: Gyre [Times,Helvt,Cour])
pdflatex paper  4,98s user 0,61s system 99% cpu 5,615 total
lualatex paper  7,19s user 0,91s system 99% cpu 8,138 total
xelatex paper  5,60s user 0,80s system 101% cpu 6,294 total

[krono]

Slight update:

• As of 907b660, programming is 10 % faster than in 2021. This is not much but better
• siunitx seems to accout for 10-25% in either setting. More for progamming, less for, eg. article.

[krono]

This is again relevant because Overleaf now has a 20s limit on free plans