Texstudio compilation is slow compared to calling from bash

Question

I have a LaTeX project that I compile using the following Bash script:

pdflatex -draftmode -interaction=nonstopmode thesis.tex > /dev/null
find -name "*.aux" -execdir bibtex {} > /dev/null ";" 
pdflatex -draftmode -interaction=nonstopmode thesis.tex > /dev/null
pdflatex -synctex=1 -interaction=nonstopmode thesis.tex > /dev/null

I call this script directly from TeXstudio with a simple user defined command, bash compile.sh | txs:///view-pdf and it takes about ~5 seconds to compile the full document (~300 pages).

The only problem with compiling via an external Bash script is that TeXstudio is not able to catch errors properly. So I made a new user command with the content of the Bash script as

pdflatex -draftmode -interaction=nonstopmode thesis.tex  > /dev/null | find -name "*.aux" -execdir bibtex {} > /dev/null ";"   | pdflatex -draftmode -interaction=nonstopmode thesis.tex > /dev/null | pdflatex -synctex=1 -interaction=nonstopmode thesis.tex > /dev/null | txs:///view-pdf

This takes about ~8 sec to run. Why is this slower when both the commands do the same amount of work?

compare the log files, I would guess you are running a different tex — David Carlisle, Aug 12 '23 at 12:47
calling bash will cause your environment to be set by .bashrc so may be different PATH, or different TEXINPUTS or ... — David Carlisle, Aug 12 '23 at 12:50
@Ingmar Are you sure the new title correctly describes the problem? I was under the impression both compilations where performed via texstudio and not via a command line, one calling a bash script while the other used directly specified the commands. — samcarter_is_at_topanswers.xyz, Aug 12 '23 at 13:51
@Ingmar ... also TeXstudio itself spells its name as one word with no space — samcarter_is_at_topanswers.xyz, Aug 12 '23 at 13:53
Thanks for the feedback. Rolled back the original title and fixed TeXstudio. — Ingmar, Aug 12 '23 at 14:12
@DavidCarlisle Checked the log files. they are identical. Also the PATH is not modified, I tried calling utilities that were defined in the .basrc but texstudio > bash could not find it. — Eular, Aug 12 '23 at 14:47
Just a guess: texstudio does quite some parsing to magic comments and user commands (e.g. to replace % with the file name etc.). Maybe it just takes longer to do the parsing with your longer user command? — samcarter_is_at_topanswers.xyz, Aug 12 '23 at 15:10
@samcarter_is_at_topanswers.xyz just punishment for not using emacs? — David Carlisle, Aug 12 '23 at 15:21
It could be because of the pdf compression. By default, Texstudio produces highly compressed files (smaller size). Change setting to lower compression, the compilation will be a lot faster. — Dellu, Oct 28 '23 at 17:26
@Dellu Texstudio is not involved in the production of the pdf - it is just an editor which will show the code and the pdf produced by latex — samcarter_is_at_topanswers.xyz, Oct 28 '23 at 18:55
Yes: but, it comes with the setting on how the pdf needs to be produced. My configuration for the xelatex is this: "/Library/TeX/texbin/xelatex -synctex=1 -interaction=nonstopmode -output-driver="xdvipdfmx -z3" %.tex". This produces the pdf much faster than the default configuration (which is tuned for higher compression). — Dellu, Oct 30 '23 at 09:18
@Dellu You can see both the commands for the bash file and the magic comment in the question. The settings from the texstudio preferences aren't used in this particular case (and neither is xelatex) — samcarter_is_at_topanswers.xyz, Oct 30 '23 at 09:24

Texstudio compilation is slow compared to calling from bash

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