[rapidlua]

Do openssl speed sha256 to get the idea how high the latency for a cache hit would be. I see a throughput of ~300MiB/sec. This can be parallelised easily but still we are burning lots of CPU cycles for nothing. Bad for battery life.

https://gist.github.com/nonylene/d08977e8952c83d20d2c5f7cbaf...