> No, we explicitly limit V8 memory usage independent of CPU time.

Ok! I hadn't just gotten that from one your talks on Workers: you had said v8 doesn't really offer a useful hook to limit memory usage as it aborted the process rather than just stopping the isolate, and that the CPU resource limit was thereby an important part of the memory limitation (as with the exception of typed arrays, using memory in JavaScript requires code to actively set memory). If you did change this, it makes me all the more interested in the changes you are making in v8 ;P (though it is also possible these changes were actually just part of upstream and I failed to notice).

https://www.infoq.com/presentations/cloudflare-v8/ (at 20m45s)