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Re: Test reader speed of Guile 3.0.6

From: Thomas Morley
Subject: Re: Test reader speed of Guile 3.0.6
Date: Sun, 14 Mar 2021 18:10:17 +0100

Am Fr., 12. März 2021 um 10:45 Uhr schrieb Thomas Morley
> Am Do., 11. März 2021 um 22:47 Uhr schrieb Dr. Arne Babenhauserheide

> > Do you already have results?
> Currently my regular job eats up all my time.
> Probably I'll find some free time at upcoming weekend, not sure though...
> If so, to which guile-version should I compare, guile-1.8 (which is
> still LilyPond-default) or a certain guile-2/3-version?

Found some time today...

I tested a huge ly-score, once sent by Jean-Charles for testing
different guile-versions:
Thanks again!
I made it compilable with recent ly-master out of
(though I didn't fix all warnings and programming errors)

Tested with these guile versions:
guile-1.8.8 from tarball
guile-2-2-6 out of a69b567d97f7c9193924c775e1dd86e43a35b8bd
guile-3.0.6 from master, i.e. out of 85433fc2b122dc78342c3c83941949d1d9318399
(although (version) says:

There are some guile-warnings, multiple instances of:
WARNING: (#{ g478}#): `smallCaps-markup' imported from both (lily) and
(#{ g171}#)
WARNING: (scm framework-ps): imported module (lily) overrides core binding `_'
The latter one is about gettext and PITA.

I compiled from the tarball linked above (giving a 158 pages pdf):


real    4m37,304s
user    4m14,144s
sys    0m7,717s

guile-2.2.6, (version) says:

real    7m18,995s
user    6m41,808s
sys    0m11,960s

eating much more memory than guile-1.8.8

guile-3.0.6, (version) says:

real    5m49,587s
user    5m11,033s
sys    0m9,488s

eating a little more memory than with guile-1.8.8 but far less than guile-2.2.6


Interestingly I found some older timing values from former tests:

released lilypond-2.19.52 with guile-1.8.7

real    8m16.191s
user    6m39.864s
sys    0m10.860s

with guile-versions from 2.0.14 and 2.1.7 I noted:

Best result was:
real    25m17.082s
user    31m1.668s
sys    0m5.480s

Worst result was:
real    77m44.348s
user    100m40.324s
sys    0m18.932s

Though, my noted former results are a little messy: I can't say
anymore which guile-version with which lilypond-patches was

Anyway, both, LilyPond and guile seem to have improved a lot.


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