Is it possible to detect that a Firefox browser is running the TraceMonkey JavaScript interpreter? If so, is it possible to do it with JavaScript? A solution which involves examining the browser binary or shared libraries is also OK for me. I'm running Linux with Firefox 3.0.14 right now.
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you can check if it's enabled by looking at:
javascript.options.jit.chrome -> for browser UI and plugins
javascript.options.jit.content -> for web content
(you can also change the values)
btw. if your code is a little complex don't expect to get a speed comparable to V8. Tracemonkey fails with branchy code (it may be slower than spidermonkey).
More info: http://hacks.mozilla.org/2009/07/tracemonkey-overview/