I wonder what the Carver MSDM score would look like. Searching the archives, it's seemingly become an informal standard for large-project stress tests.
Carver MDSM compiled with guile master and lilypond master: 19.7 seconds Carver MDSM compiled with guile 1.8 + lilypond master: 14.6 seconds For the Carver MDSM we see a performance penalty of only about 35% for guile master. BTW: There are a few warnings with guile master that need to be investigated: GNU LilyPond 2.23.1 WARNING: (scm ps-to-png): imported module (lily) overrides core binding `_' WARNING: (scm ly-syntax-constructors): imported module (lily) overrides core binding `_' /home/knut/sources/lilybuilt/share/lilypond/2.23.1/ly/declarations-init.ly:21:2: error: GUILE signaled an error for the expression beginning here # (cond-expand Invalid argument WARNING: (#{ g161}#): imported module (lily) overrides core binding `_' Processing `MSDM.ly' Parsing... /home/knut/sources/lilybuilt/share/lilypond/2.23.1/ly/init.ly:22:2: error: GUILE signaled an error for the expression beginning here # (cond-expand Invalid argument Preprocessing graphical objects...WARNING: (scm framework-ps): imported module (lily) overrides core binding `_' WARNING: (scm output-ps): imported module (lily) overrides core binding `_' IConverting to `MSDM.pdf'... WARNING: (#{ g171}#): imported module (lily) overrides core binding `_' GPL Ghostscript GIT PRERELEASE 9.54.0: ERROR: A pdfmark destination page 87 points beyond the last page 1. Success: compilation successfully completed Knut