But looks like there's a separate heap, garbage collector, profiler managed 
per Isolate?

On Thursday, March 6, 2014 3:23:44 PM UTC-8, Ben Noordhuis wrote:
>
> On Fri, Mar 7, 2014 at 12:06 AM, Jane Chen <[email protected]<javascript:>> 
> wrote: 
> > Separate question: how expensive is it to construct an Isolate assuming 
> I 
> > don't do much with it?  Once constructed, is it worth to keep around and 
> > re-use? 
>
> Not that expensive IIRC, most of the overhead is in constructing the 
> Context.  Whether it's worth keeping them around depends on how often 
> you'd create one.  Best advice I can give you is to go benchmark it. 
>

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