V8 supported multiple threads since long ago using a big VM lock approach (v8::Locker). Since 3.2.4 it's possible to run independent V8 code in parallel using t

V8 supported multiple threads since long ago using a big VM lock approach (v8::Locker). Since 3.2.4 it's possible to run independent V8 code in parallel using the new v8::Isolates API: http://code.google.com/p/v8/source/browse/trunk/include/v8.h#2558 http://code.google.com/p/v8/source/browse/trunk/include/v8.h...