[H8crilA]

10x is a very safe margin. I suppose 2x is fine if you really know your code (usually you don't, really, unless you wrote all of it yourself).

[bathtub365]

Well, I’m not sure I’d call buying 1TiB of RAM and mlock’ing it all an optimization.

[H8crilA]

It is not an "optimization" in the sense that it's not engineer's work.

It is in the sense that it gets the speedup job done.

[bathtub365]

That’s just throwing hardware at a performance problem, not optimization.

[H8crilA]

Name it however you want, gets the job done (sometimes).