Am 07.08.2010 09:14, schrieb David Kastrup:
Graham Percival<gra...@percival-music.ca> writes:
On Thu, Aug 05, 2010 at 05:26:15AM -0700, ornello wrote:
In my installation, Lilypond runtime seems to increase exponentially (at
least not linearly) with the number of pages to engrave. Is there any option
to speed up Lilypond, e.g. by removing time-consuming engravers, such that
the performance only increases (almost) linearly with the number of pages?
There's a section in the Learning manual called "speeding up
lilypond", or something like that. This sounds like a good place
to look.
Essentially exponential behavior can't really be cured with anything
except fixing the algorithm.
Can one expect a program like LilyPond to work in a linear fashion?
IIUC a linear increase could only be expected if lily would just "walk"
through the score from beginning to end.
But if it has to process the score as a whole (i.e. "still know at the
end what was at the beginning" or "know the end before typesetting the
first barline") I find it quite natural that its usage of processing
time and probably memory increases exponentially.
While practically any software may be improved and optimized I think
that if the scores become too complex to be handled within an acceptable
amount of time the only real solution is new hardware.
Best
Urs
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