Sharing a JavaScript implementation across realms

Brendan Eich brendan at
Tue Jan 13 16:28:03 PST 2015

Before we go tl;dr on this topic, how about some data to back up the 
asserted problem size? Filip gently raised the question. How much memory 
does a realm cost in top open source engines? Fair question, empirical 
and (I think) not hard to answer. Burdened malloc/GC heap full cost, not 
net estimate from source analysis, would be best. Cc'ing Nick, who may 
already know. Thanks,


David Bruant wrote:
> Why would a JS implementation *has to* be tied to a realm?

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