Re: Issue 1926 in lilypond: 2.15.12 processing speed problems

[Keith OHara]

> Looks like the enhancement for issue 1839 caused the slowdown.
> 
> If we avoid the more complicated note-head.cc:internal_print() from 1839,
> [...]
> then input that used to double in compilation time between versions now  
> takes [the same time] on either .11 or .12.
> 

The issue 1839 patch tripled the number of named-glyph-lookups per note-head.

If that is really the cause of the observed 60% increase in compile times,
that would imply that LilyPond 2.14 on Windows is spending 30% of her time
looking up note-head glyphs by name.