Friends, I forgot to mention this behaviour was seen in my Linux machines. Ulrike could not reproduce on Windows. Thanks!
Em seg., 28 de ago. de 2023 às 11:49, Paulo Roberto Massa Cereda <cereda.pa...@gmail.com> escreveu: > > Dear friends, > > I beseech your wisdom. :) In my tests, I noticed LuaTeX 2023 is > significantly slower than the 2022 counterpart. Here's a MWE: > > --------8<-------- > Lorem ipsum dolor sit amet, consectetur adipiscing elit, > sed do eiusmod tempor incididunt ut labore et dolore magna > aliqua. Ut enim ad minim veniam, quis nostrud exercitation > ullamco laboris nisi ut aliquip ex ea commodo consequat. > Duis aute irure dolor in reprehenderit in voluptate velit > esse cillum dolore eu fugiat nulla pariatur. Excepteur > sint occaecat cupidatat non proident, sunt in culpa qui > officia deserunt mollit anim id est laborum. > \bye > --------8<-------- > > Benchmark 1: texlive/2022/bin/x86_64-linux/luatex test.tex > Time (mean ± σ): 177.7 ms ± 1.4 ms [User: 140.9 ms, System: 36.6 > ms] > Range (min … max): 175.8 ms … 180.3 ms 16 runs > > Benchmark 2: texlive/2023/bin/x86_64-linux/luatex test.tex > Time (mean ± σ): 286.7 ms ± 2.3 ms [User: 246.1 ms, System: 40.3 > ms] > Range (min … max): 284.0 ms … 291.2 ms 10 runs > > Summary > texlive/2022/bin/x86_64-linux/luatex test.tex ran > 1.61 ± 0.02 times faster than texlive/2023/bin/x86_64-linux/luatex > test.tex > > I initially had tried with LuaLaTeX and got similar results. Ulrike > Fischer and Marcel Krüger kindly helped me find out what was going on, > but we could not find anything relevant. I've tried: > > - loading a custom OTF font: 2022 was 1.53 ± 0.02 (cold cache) and > 1.83 ± 0.03 (existing cache) times faster > - loading the default OTF font: 2022 was 1.68 ± 0.02 (cold cache) and > 2.02 ± 0.03 (existing cache) times faster > - HarfBuzz: 2022 was 1.57 ± 0.02 times faster (cold cache) and 1.84 ± > 0.05 times faster (existing cache) > - raw feature (normalize): 2022 was 1.81 ± 0.03 times faster > - updated luaotfload-tool in TL2022: 2022 was 1.83 ± 0.01 times faster > - no OTF: 2022 was 1.95 ± 0.02 times faster > > I was wondering if someone could shed some light into this. :) Thanks! > > Cheerio, > > Paulo
