I was a bit worried about performance because I use so many macros and so much indirection (in the form of objects forwarding zillions of messages to each other.) But after some tests, the compiled pixel-demo program seems to perform decently; it feels responsive enough. (See ELP results below for hard numbers).
The most frequently invoked function, namely (eon-read-slot), takes very little time---which was one of the main design goals. Once you have fast slot lookup, it becomes more reasonable to do proxying and all sorts of other neat stuff.
Another tweak: I've decided to assign permanent Universally Unique Identifiers (UUID's) to EVERY EON OBJECT anybody ever creates. Furthermore you can assign yourself a UUID, and all the emacs peeps will have unique ID's. When you publish objects, they're tagged with your UUID in the :owner field (or something like that, I haven't decided yet.) I bet we could add object authentication and encryption, etc.
Function Name Call Count Elapsed Time Average Time ===================================== ========== ============ ============ eon-deliver-message 3451 2.9767450000 0.0008625746 eon:method:cell-sheet:render 46 0.798569 0.0173601956 eon:method:cell-sheet:move-cursor 31 0.44502 0.0143554838 eon:method:cell-sheet:calculate 11 0.4162220000 0.0378383636 eon-default-clone-method 257 0.316109 0.0012299961 eon-clone 1 0.299976 0.299976 eon:method:pixel-sheet:initialize 1 0.2998929999 0.2998929999 eon:method:cell-sheet:initialize 1 0.277868 0.277868 eon-read-slot 34184 0.1566370000 4.582...e-06 eon:method:pixel:calculate 2816 0.0667159999 2.369...e-05 eon:method:cell-sheet:clone-fill 1 0.021941 0.021941 eon-find-prototype 6366 0.0130439999 2.049...e-06 eon-write-slot 2869 0.0082790000 2.885...e-06 eon:method:cell-sheet:apply-tool 10 0.0010609999 0.0001060999 eon-default-initialize-method 256 0.0002339999 9.140...e-07 eon:method:cell-sheet:show 1 0.000178 0.000178 eon:method:cell-sheet:cell-at 10 0.000135 1.35e-05 eon:method:pixel:set-color 10 0.000132 1.32e-05 eon-find-object 3 8e-06 2.666...e-06