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
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Hans Hagen | PRAGMA ADE
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