In message <B52A3F91.2B20%Henrik.Gedenryd at lucs.lu.se> you wrote:

> Of course, with Tim's new pluggable VM, one might also place all graphics
> stuff in a plugin, so that you'd only need to swap that plugin to extend
> BitBlt. (Saves a few lousy Ks for a headless VM too.)
Andreas has already pluginized the new bitblt stuff, so I imagine mozing
the still-needed parts of the old stuff would be reasonably simple.
> 

> 1. Andreas claims that MacOS (Code Fragment Manager) adds substantial
> overhead for calling functions via pointers. This might exclude the first
> solution.
Well I discovered this morning whilst trying to debug the sound problem
on the mac (just how _do_ you debug shared libraries under code worrier?
drives me nuts) that the mac external prims calling stuff does a
lookup-and-call of setInterpreter() _every_ time! This might account for
some performance wastage.... Since the new plugins  stuff also looks up
and runs initializeModule(), that gets added every time on my machine.


-- 
Tim Rowledge, tim at sumeru.stanford.edu, http://sumeru.stanford.edu/tim
Useful random insult:- On permanent leave of absence from his senses.