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Re: Issue 1211 in lilypond: [PATCH]Optimizations for pure-height approxi

From: Valentin Villenave
Subject: Re: Issue 1211 in lilypond: [PATCH]Optimizations for pure-height approximations. (issue1817045)
Date: Sat, 20 Nov 2010 00:17:55 +0100

On Fri, Nov 19, 2010 at 11:25 PM,  <address@hidden> wrote:
> Unfortunately there's been a drop in performance since 2.13.36; I've
> narrowed it down to Joe's fix for issue 1240 (5266aa).  As you can see from
> the above timings, it adds over forty minutes to both optimized and standard
> builds.

That's annoying. Should I reopen #1240? (Or possibly open a new issue
about it; we should also consider making it a High-prio, since I doubt
we want to release a new stable version with that much of a
performance drop.)

> I've done some more benchmarking, this time using Valentin's opera* (which
> annoyingly, I still haven't succeeded in compiling in Ubuntu due to lack of
> RAM).
> http://repo.or.cz/w/opera_libre.git/blob/refs/heads/new:/scores/opera/main.ly,
> with some tweaks to get it working in 2.13

Interesting. I'm in the process of porting it to my new framework, but
I'd be interested in seeing your diff (I'm guessing beaming stuff, at
the very least?).

Thanks for the heavy benchmarking; your patience and thoroughness amaze me! :-)


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