Re: Lilypond Speed

[Han-Wen Nienhuys]

On Mon, Aug 31, 2009 at 8:03 PM, Peter
Chubb<address@hidden> wrote:

> I think you'll find the main difference is in size of L2/L3 cache,
> and amount of RAM.  Lily (like many object-oriented programs) tends to
> have quite a deep stack, and to use lots of memory --- which it
> visits in what looks to the processor like random orders --- so small
> caches generate lots of cache misses, which slows things down.  If you
> run out of RAM and have to swap, things get even worse.

More importantly: LilyPond is single-threaded, so the number of cores
is irrelevant.

-- 
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen