Quick answer: I can notice the speed difference in the terminal output from the very start. I will try the diff later. Thomas
> Am 19.02.2022 um 20:12 schrieb Jean Abou Samra <j...@abou-samra.fr>: > > Le 19/02/2022 à 16:41, Thomas Scharkowski a écrit : >> One more test: >> I installed both versions on a 2013 iMac intel Core i5. >> >> 24,3“ MacPorts version >> 51,4“ gitab version > > > OK, bear with me. Can you please take the following steps > and report results? It is really important for us to identify > what is causing this slowdown. > > First, does it look like one step of the compilation in particular > is slow (for example, it takes time during "Preprocessing graphical > objects"), or do all steps take more time? Pro tip: run lilypond with > --verbose to have a more fine-grained view of the process. > > Second, edit the file lily.scm (should be under > /path/to/lilypond-2.23.6/share/lilypond/2.23.6/scm/lily) > to apply the following diff: > > > @@ -844,8 +844,11 @@ PIDs or the number of the process." > > ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > > +(use-modules (statprof)) > + > (define-public (lilypond-main files) > "Entry point for LilyPond." > + (statprof (lambda () > (eval-string (ly:command-line-code)) > (if (ly:get-option 'help) > (begin (ly:option-usage) > @@ -927,7 +930,7 @@ PIDs or the number of the process." > (ly:exit 1 #f)) > (begin > (ly:exit 0 #f))))) > - > +)) > (define-public (session-start-record) > (for-each (lambda (v) > ;; import all public session variables natively into parser > > > > Namely, add "(use-modules (statprof))" before the definition of > lilypond-main, "(statprof (lambda ()" after the line "Entry point > for LilyPond", and "))" after the function. This makes LilyPond > run under a profiling tool and report output at the end of the > compilation. Now run once with GUILE_AUTO_COMPILE=1, to recompile > lily.scm. The second run will be clean (all files byte-compiled); > can you report the big list of timings that is printed at the end? > > Thanks in advance, > Jean >
