Subj : Performance Advice on Maintaining Many Contexts
To   : netscape.public.mozilla.jseng
From : peter.kyme
Date : Wed Mar 02 2005 06:35 am

My problem involves a system containing a large number (> 100) of
objects, each of which has an associated Spidermonkey context.

The objects execute a small javascript repeatedly, iterating until
termination. This javascript is user defined, and so may contain
arbitrary local variables, which was my motivation for creating a
context per object (no multithreading is involved).

This appears to work well, but I've encountered a nasty performance
issue at cleanup time. Running the program through once, without doing
any memory cleanup takes ~1.2s. If I then add code to destroy the JS
contexts before exits, the program take ~17s to execute.

Am I taking the wrong approach? Performance is quite important here,
and I'm struggling to see how to proceed if I can't get around this.

.