const	windowSize = 200000
const msgCount   = 1000000
let worst        = -Infinity

function mkMessage(n) {
  const m = []
  for (let i; i < 2014; i++) {
    m.push(n)
  }
	return m
}

function pushMsg(c, highID) {
	const start = Date.now()
	const m = mkMessage(highID)

	c[highID%windowSize] = m

	const elapsed = Date.now() - start

	if (elapsed > worst) {
		worst = elapsed
	}
}

function main() {
	const c = []

	for (let i = 0; i < msgCount; i++) {
		pushMsg(c, i)
	}

	console.log(`Worst push time: ${worst}ms`)
}

main()