Greg Colvin

Wasm is of course designed such that reasonably optimized machine code can be generated in _n log n_ time. And it can be generated with a simpler compiler than usual....

I mentioned in the Gitter channel that long before most systems run out of virtual memory they will thrashing so badly as to be useless. So I'm not sure this...

Is "accurate" metering even possible? Stock systems vary a lot, even the same system can vary under load, and systems and clients can be customized to make expensive operations faster....

@vbuterin Yeah, even on hardware DIV is very much slower than the other operations, and in software it gets worse, probably much worse than 20x. It might be the only...

I'm guessing that DoS-susceptible flaws can also appear across other categories (e.g. the Go wasm VM has susceptibility that the Parity VM doesn't) so allowing out this one case might...

Not sure what you mean by "cost around x10 more if gas metering in the current ewams metering schedule." Ten times more than what? And no time to read the...

In general for the 256-bit opcodes there can be a lot of variation between clients depending on the choice of algorithms and quality of implementation. Much more than 4X, and...

Nice! I'm not clear whether you are suggesting a change to the protocol, or only an optimization of EVMC. > Someone should model this, but keeping the chain of all...

@chfast @cdetrio @holiman @axic You might find these interesting.

I do notice that the numbers in nanoseconds are unreasonably low, though in relative order. I suspect I am over-correcting for interpreter overhead. Also, the formula I'm using is numerically...