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List:       lilypond-user
Subject:    Re: LilyPond can't engrave 16 pages of music
From:       Federico Bruni <fede () inventati ! org>
Date:       2018-12-23 15:56:40
Message-ID: 1545580600.3090.0 () smtp ! autistici ! org
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Il giorno sab 22 dic 2018 alle 16:58, Thomas Morley 
<thomasmorley65@gmail.com> ha scritto:
> Am Sa., 22. Dez. 2018 um 12:10 Uhr schrieb David Kastrup 
> <dak@gnu.org>:
>> 
>>  Thomas Morley <thomasmorley65@gmail.com> writes:
>> 
>>  > Am Sa., 22. Dez. 2018 um 02:46 Uhr schrieb Ben 
>> <soundsfromsound@gmail.com>:
>>  >> Did you experience the same wait times?
>>  >
>>  > It lasted ~40minutes (I didn't observed the time exactly)
>>  >
>>  > I think:
>>  > most of the time is spend in calculating 
>> spacing/line-/page-breaks.
>> 
>>  Recently Werner committed a few fixes of typos with possibly ugly
>>  consequences in the area of page breaking, so it might be worthwhile
>>  crosschecking with current master.
> 
> I've redone testings with the OP's original code, i.e.
> 
>     {
>       \time 4/4
>       \repeat unfold 1000 { c4 d e f } % TEN PAGES of music
>       \repeat unfold 1000 { f1 } % + SIX MORE PAGES of music
>       \repeat unfold 1000 { c4 d e f } % BUT WHEN ADDING MORE PAGES, 
> fail NOW
>     }
> 
> Using 2.19.82 (from the installer) and 2.21.0 out of 915799cad7
> musicexp.py: Use python 2.4 syntax.
> 
> Always restarting the computer after each test.
> 
> For 2.19.82 it's finished after 28m4,740s
> For 2.21.0 after 24m50,214s
> 
> Memory-usage seems to be similar.
> I didn't oberve a difference in the final pdfs
> 

Well, for me current master (not installed but run from the out/ 
directory in the build dir) is slightly slower.
Intel Core processor i7-3537U


lilypond 2.19.82 (lilypond.org package)
real	2m50,737s (first run)
real	2m41,112s (second run)
2.6 GiB RAM used


lilypond 2.21.0 (self compiled)
real	3m2,222s (first run)
real	2m45,579s (second run)
2.6 GiB RAM used





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