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Re: Illegal C++

From: Nicolas Sceaux
Subject: Re: Illegal C++
Date: Tue, 11 Oct 2005 18:48:14 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (darwin)

Erik Sandberg <address@hidden> writes:

> To me, those property lists look like major bottlenecks (though I
> haven't done any real profiling). Especially the grob property alists:
> While I was debugging some time ago, I saw that
> Grob::internal_set_property was called over 1000 times in a trivial
> score.

But what time a call to Grob::internal_set_property takes on an alist
compared to eg a guile hash table?  I don't know of guile's hashtables
and alists, but in Common Lisp, alists are said to be more efficient
that hashtables for small tables[1].  So there are cases where alist is
really a sound choice of table structure. (I don't know how many
properties grobs typically have).



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