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GOOPS slowness [was: Compiling guile-gobject experiences]
[Cc'ed to guile-devel since this is a guile/GOOPS speed issue;
Context: The new guile-gobject Guile bindings for GTK+ use GOOPS to
provide an OO interface. Building this interface (at binding module
load time) is painfully slow (leading to a 10 seconds total for
loading the whole GTK+ binding on my machine (Athlon 900)).
Andreas Rottmann <email@example.com> writes:
> A way to speed the binding creation up a little bit might be to move
> the ability to create methods into g-wrap, since that would save us a
> few scm_c_lookups for each method. I'll look into this once I'm done
> with testing the above mentioned modifications.
I've now done that and have all code for method creation in one
place. I did some simple benchmarking via clock() and identified the
method creation : 4.35 seconds total (1350 * 0.00322222)
GF create: 3.01 seconds total (782 * 0.0038491)
method add: 1.25 seconds total (1048 * 0.00119275)
The values in the parenthesis are the count how often the code segment
is executed and the time in seconds for each iteration.
"GF create" is the following code:
default_val = scm_make (scm_list_3 (scm_class_generic,
"method add" is this:
scm_add_method (gf, meth);
Now I wonder why it takes so long to construct a generic function (the
method add time is not *that* bad)...
Andreas Rottmann | Rotty@ICQ | 118634484@ICQ | firstname.lastname@example.org
http://www.8ung.at/rotty | GnuPG Key: http://www.8ung.at/rotty/gpg.asc
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Packages should build-depend on what they should build-depend.