I tried the binary from
https://dl.contextgarden.net/build/luatex/x86_64-linux/
and got a pleasant surprise:
➜ hyperfine -L year 2022,2023 'texlive/{year}/bin/x86_64-linux/luatex test.tex'
Benchmark 1: texlive/2022/bin/x86_64-linux/luatex test.tex
Time (mean ± σ): 177.0 ms ± 1.1 ms [User: 140.9 ms, System: 36.0 ms]
Range (min … max): 175.2 ms … 179.2 ms 16 runs
Benchmark 2: texlive/2023/bin/x86_64-linux/luatex test.tex
Time (mean ± σ): 209.0 ms ± 1.3 ms [User: 168.3 ms, System: 40.5 ms]
Range (min … max): 205.8 ms … 211.1 ms 14 runs
Summary
texlive/2022/bin/x86_64-linux/luatex test.tex ran
1.18 ± 0.01 times faster than texlive/2023/bin/x86_64-linux/luatex test.tex
Will build it from sources to see what I get. Thanks!
Em seg., 28 de ago. de 2023 às 13:58, Paulo Roberto Massa Cereda
<cereda.pa...@gmail.com> escreveu:
>
> Thanks so much, Hans! I will do some further tests and report back!
>
> Em seg., 28 de ago. de 2023 às 13:35, Hans Hagen <j.ha...@xs4all.nl> escreveu:
> >
> > On 8/28/2023 5:43 PM, Paulo Roberto Massa Cereda wrote:
> > > Thanks for the feedback, Hans! Apologies for the "vague" context, I
> > > was in a hurry. I will try to provide more details as follows:
> > >
> > > My initial test was:
> > >
> > > --------8<--------
> > > \documentclass{article}
> > >
> > > \usepackage{fontspec}
> > >
> > > \setmainfont[
> > > Extension=.ttf,
> > > Path=./fonts/,
> > > UprightFont=*-Regular,
> > > BoldFont=*-Bold,
> > > ItalicFont=*-Italic,
> > > BoldItalicFont=*-BoldItalic
> > > ]{JetBrainsMono}
> > >
> > > \begin{document}
> > >
> > > Hello world.
> > >
> > > \end{document}
> >
> > So that is mostly measuring start up time.
> >
> > There is no real big difference between jetbrain regular and for
> > instance dejavu sans mono):
> >
> > 1000 lorum paragraphs (standard 12pt context layout):
> >
> > % jetbrain : 200 pages 1.4 sec
> > % dejavu : 200 pages 1.2 sec
> >
> > if we just process the font (hbox)
> >
> > % jetbrain : 0.39 sec (0.15) sec for 200 pages
> > % dejavu : 0.36 sec (0.15) sec for 200 pages
> >
> > in base mode:
> >
> > % jetbrain : 0.15 sec for 200 pages
> > % dejavu : 0.15 sec for 200 pages
> >
> > (windows 10, luametatex with context, 2017 laptop with Intel(R) Xeon(R)
> > CPU E3-1505M v6 @ 3.00GHz)
> >
> > Just to give you some comparison.
> >
> > > --------8<--------
> > >
> > > JetBrains Mono was obtained from here: https://www.jetbrains.com/lp/mono/
> > >
> > > By "cold cache" (and apologies in advance for probably using the wrong
> > > term for describing), I was referring to deleting
> > >
> > > texmf-var/luatex-cache
> > >
> > > before each benchmark run. I did this with both TL 2022 and TL 2023.
> > >
> > > Then I tried with an actual document. I had Lorem Ipsum paragraphs
> > > replicated more than 1000 times:
> > >
> > > ➜ wc -l test.tex
> > > 2499 test.tex
> > >
> > > ➜ hyperfine -L year 2022,2023 --warmup 2
> > > 'texlive/{year}/bin/x86_64-linux/lualatex test.tex'
> > > Benchmark 1: texlive/2022/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 2.881 s ± 0.021 s [User: 2.771 s, System:
> > > 0.108 s]
> > > Range (min … max): 2.848 s … 2.907 s 10 runs
> > >
> > > Benchmark 2: texlive/2023/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 5.814 s ± 0.059 s [User: 5.675 s, System:
> > > 0.128 s]
> > > Range (min … max): 5.760 s … 5.910 s 10 runs
> >
> > hm, so startup time differences can be neglected
> >
> > > Summary
> > > texlive/2022/bin/x86_64-linux/lualatex test.tex ran
> > > 2.02 ± 0.03 times faster than
> > > texlive/2023/bin/x86_64-linux/lualatex test.tex
> > >
> > > For HarfBuzz, I had the OTF font example above with:
> >
> > That could be changes in that library, right?
> >
> > > \setmainfont[
> > > Extension=.ttf,
> > > Path=./fonts/,
> > > UprightFont=*-Regular,
> > > BoldFont=*-Bold,
> > > ItalicFont=*-Italic,
> > > BoldItalicFont=*-BoldItalic,
> > > Renderer=HarfBuzz
> > > ]{JetBrainsMono}
> > >
> > > For the normalize thing one, I had:
> > >
> > > \setmainfont[
> > > Extension=.ttf,
> > > Path=./fonts/,
> > > UprightFont=*-Regular,
> > > BoldFont=*-Bold,
> > > ItalicFont=*-Italic,
> > > BoldItalicFont=*-BoldItalic,
> > > RawFeature=-normalize
> > > ]{JetBrainsMono}
> > >
> > > Marcel suggested me to update TL2022 luaotfload-tool to the latest
> > > version as well, so I did:
> > >
> > > ➜ texlive/2022/bin/x86_64-linux/luaotfload-tool --version | grep
> > > "luaotfload-tool version"
> > > luaotfload-tool version: "3.24"
> > >
> > > ➜ texlive/2023/bin/x86_64-linux/luaotfload-tool --version | grep
> > > "luaotfload-tool version"
> > > luaotfload-tool version: "3.24"
> > >
> > > ➜ hyperfine -L year 2022,2023 --warmup 2
> > > 'texlive/{year}/bin/x86_64-linux/lualatex test.tex'
> > > Benchmark 1: texlive/2022/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 689.6 ms ± 2.0 ms [User: 588.9 ms, System:
> > > 100.1 ms]
> > > Range (min … max): 687.3 ms … 693.6 ms 10 runs
> > >
> > > Benchmark 2: texlive/2023/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 1.264 s ± 0.007 s [User: 1.151 s, System:
> > > 0.112 s]
> > > Range (min … max): 1.254 s … 1.277 s 10 runs
> > >
> > > Summary
> > > texlive/2022/bin/x86_64-linux/lualatex test.tex ran
> > > 1.83 ± 0.01 times faster than
> > > texlive/2023/bin/x86_64-linux/lualatex test.tex
> > >
> > > I also tried with \usepackage[T1]{fontenc}:
> > >
> > > ➜ hyperfine -L year 2022,2023 --warmup 2
> > > 'texlive/{year}/bin/x86_64-linux/lualatex test.tex'
> > > Benchmark 1: texlive/2022/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 457.4 ms ± 3.1 ms [User: 380.7 ms, System:
> > > 76.3 ms]
> > > Range (min … max): 452.8 ms … 463.6 ms 10 runs
> > >
> > > Benchmark 2: texlive/2023/bin/x86_64-linux/lualatex test.tex
> > > Time (mean ± σ): 893.9 ms ± 8.4 ms [User: 805.5 ms, System:
> > > 88.0 ms]
> > > Range (min … max): 886.8 ms … 915.7 ms 10 runs
> > >
> > > Summary
> > > texlive/2022/bin/x86_64-linux/lualatex test.tex ran
> > > 1.95 ± 0.02 times faster than
> > > texlive/2023/bin/x86_64-linux/lualatex test.tex
> > >
> > > I can create a GitHub repository with some tests for reproducibilty,
> > > if it helps.
> > >
> > > I will try to compile the sources. Will report soon.
> > best try that first because it might be that you have a subtoptimal
> > binary or get bins from
> >
> > https://dl.contextgarden.net/build/luatex/
> >
> > (these are generated in the tex live setup so basically for older
> > linuxes in order to be compatible)
> >
> > Hans
> >
> > -----------------------------------------------------------------
> > Hans Hagen | PRAGMA ADE
> > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> > -----------------------------------------------------------------
> >
