This is the reference point. All the other options are based off this.
|-- app
| |-- controllers
| | |-- admin
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs
const boundedRatio = (a, l, r) => { | |
return a.map((v, i) => { | |
for (let x = l; x <= r; x++) { | |
return (i + 1) * x == v; | |
} | |
}) | |
} | |
const v = [1, 2, 3, 4, 5] | |
const r = l = 1 | |
console.log(boundedRatio(v, l, r)) |