On 2/19/12 3:31 PM, Mark S. Miller wrote:
Other than the origin truncation issue that I am still confused about,
what other benefits are there to mediating interframe access within the
same origin?

In Gecko's case, at least, there are certain benefits to garbage collection, memory locality, memory accounting, faster determination of an object's effective origin, etc.

The important part being the separate per-frame heaps; the mediation is just a consequence.

-Boris
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