Again, I'm way out of depth here, but if your javascript loop ran fast enough relative to the cache latency, you could perhaps create a similar effect. The key

Again, I'm way out of depth here, but if your javascript loop ran fast enough relative to the cache latency, you could perhaps create a similar effect. The key would be whether the cache logic flaw depended on requests from two distinct cores to the same cache line, or if it's something that multiple requests from a single core can excite. No clue if this is the case.