On Thu, Apr 03 2025, Ihor Radchenko <yanta...@posteo.net> wrote: > Karthik Chikmagalur <karthikchikmaga...@gmail.com> writes: > >> For org-latex-preview, one of the other things we tried was to keep all >> utf-8 font-related settings out of the header that is precompiled. If >> we manage this precompilation can work (somewhat unreliably) with >> lualatex, and previews are a bit faster. But doing this via string >> matching is difficult and fragile. And even with precompilation, >> lualatex has a slow startup time, and we are some distance away from < 1 >> sec preview updates. > > I am wondering if the current design with many previews generated using > the same latex process can be extended. May we somehow add a Lua code to > preview.sty that will not exit at all and watch for new .tex fragments > to appear and preview them. The idea is to avoid stopping lualatex > process most of the time (unless preamble has to be changed) and make it > work like a server. That may bring the preview speed to acceptable levels.
Do you mean preview.sty from the preview package [1]? My understanding of this thread on tug.org [2] is that there isn't an easy way to do what you want from within luatex (and the luatex developpers are un-interested in speeding up luatex). I suppose that we could create a stable of luatex processes that are waiting for input. I don't know if that would speed things up appreciably, though. Leo [1] - https://ctan.org/tex-archive/macros/latex/contrib/preview [2] - https://tug.org/pipermail/luatex/2023-December/thread.html#7898
