Cache hit ratio in permille

easynetworkJavaScript

A proxy dashboard reports cache efficiency as permille — parts per thousand — so operators can spot a 2 permille dip that a percentage would round away.

Return floor(hits × 1000 / requests).
When requests is zero or negative, return 0.

cacheHitPermille(hits: int, requests: int) → int

Solve it in the editor →

Where you start

function cacheHitPermille(hits, requests) {
  
}

Worked examples

Call	Result
`cacheHitPermille(500, 1000)`	`500`
`cacheHitPermille(1, 3)`	`333`
`cacheHitPermille(0, 100)`	`0`
`cacheHitPermille(100, 0)`	`0`

Hint

Integer division gives the floor you need.

Reference solution in JavaScript

function cacheHitPermille(hits, requests) {
  if (requests <= 0) return 0;
  return Math.floor(hits * 1000 / requests);
}

The same problem in another language

TypeScript
Python

Cache hit ratio in permille

Where you start

Worked examples

Hint

The same problem in another language

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