2 ms·

I bet my bottom dollar that branch prediction is not going to magic away that index dependent if statement in a language like JS, even with Crankshaft in full e

I bet my bottom dollar that branch prediction is not going to magic away that index dependent if statement in a language like JS, even with Crankshaft in full effect.

inglor 13y ago
Here, it's within 20% of the performance. Definitely not n vs 2n http://jsperf.com/oh-look-branches http://jsperf.com/oh-look-branches
- mraleph 13y ago
  The actual percentage depends on the CPU. On mobile the cost would likely be higher (e.g. on my phone it's around 33%), on old CPU can be even higher, but people don't usually care about them these days.
  - inglor 13y ago
    Hi! Hoped you liked the plugs here. Write more!