We have recently made major changes to this feature. Until recently, sharing objects among threads would mostly work, although scripts could easily make it crash. We have now completely removed that feature. Each thread that uses the JavaScript engine must essentially operate in a totally separate region of memory.
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So both VMs provide essentially the same multithreading capabilities.
JS_THREADSAFE is now permanently on.
We have recently made major changes to this feature. Until recently, sharing objects among threads would mostly work, although scripts could easily make it crash. We have now completely removed that feature. Each thread that uses the JavaScript engine must essentially operate in a totally separate region of memory.
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So both VMs provide essentially the same multithreading capabilities.