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Re: Guile 2 vs. Guile 3

From: Jonas Hahnfeld
Subject: Re: Guile 2 vs. Guile 3
Date: Sat, 26 Nov 2022 23:10:37 +0100
User-agent: Evolution 3.46.1

On Sat, 2022-11-26 at 13:36 -0800, Eric Benson wrote:
> In anticipation of the impending release of 2.24, I recently ported my
> Lilypond files from 2.22 to 2.23.81. I have about 100 lead sheets with
> lyrics, parameterized so that I can easily create them in different keys
> and in treble clef or bass clef. There are all in the range of 1 to 2 pages
> when typeset. I have a script that generates them in four different keys,
> so that's roughly 400 invocations of lilypond.
> I know that Lilypond 2.24 binary distributions will be built with Guile 2,
> not Guile 3, but I thought you might like to know that I was able to build
> 2.23.81 from source with Guile 3, run my script, and I got what appears to
> be the exact same result as I had with the Guile 2 binary distribution.
> This was on a Mac Studio with Apple CPU running MacOS Ventura 13.0.1. I'm
> not sure if the Guile 3 JIT is enabled in this build, or if it even works
> currently on Apple silicon. At any rate, lilypond with Guile 3 on this
> system works, although it was considerably slower than Guile 2 in my build.
> My script takes about 5 minutes elapsed time on 2.23.81 with Guile 2, and
> it took about 17 minutes with Guile 3.

Thanks for measuring this! May I ask how you installed LilyPond? If you
compiled it yourself, did you run "make bytecode" and "make install-
bytecode" as advertised here:


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