Hi all,

To what extent is the Main thread consumed by a (Chrome)Workers postMessage() 
and onmessage() calls to other Sub(Chrome)Workers?

Specifically, if a sub-worker postMessage()s to it's listening parent Worker, 
and the parent Worker posts back to the sub does this hit the main thread 
significantly?

I'm trying to decide on a design patters as to if it's worth using:

Master
   Worker
       SubWorker
       SubWorker
       SubWorker

vs

Master
   Worker
   Worker
   Worker

If a sub worker can post and receive messages with less performance hit on 
Main, then the overhead of a Worker handler would seem worthwhile.


Cheers,

Neil
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