Run results for: lumiere fp vs raw

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 8 months ago

Test name	Executions per second
bench-fp	0.3 Ops/sec
bench-raw	5.5 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const recycleConcat = (left = new Uint8Array(), right = new Uint8Array()) => {
  const totalByteLength = left.byteLength + right.byteLength
  const newView = new Uint8Array(
    left.buffer.byteLength >= totalByteLength ? left.buffer :
    new ArrayBuffer(totalByteLength),
    0,
    totalByteLength,
  )
console.log('left', left, 'right', right, 'lbl', left.byteLength)
  newView.set(left)
  newView.set(right, left.byteLength)

  return newView
}

const fpRecycleConcat = right => left => recycleConcat(left, right)

const asUint8 = ta => new Uint8Array(ta.buffer)

const pipe2 = (f, g) => x => g(f(x))
const pipe = (...fns) => fns.reduce(pipe2)

const TRANSMIT = 2

const createHeader = (id, type) => Uint8Array.of(
  ...asUint8(new Uint16Array([id])),
  type,
)

const createTransmitMessageFp = (id, message) => {
  const header = createHeader(id, TRANSMIT)
  const messageLength = asUint8(Uint32Array.of(message.length))
  const transmitMessage = new Uint8Array(
    header.byteLength +
    messageLength.length +
    message.length,
  )

  return pipe(
    fpRecycleConcat(header),
    fpRecycleConcat(messageLength),
    fpRecycleConcat(message),
  )(transmitMessage.subarray(0, 0))
}

const createTransmitMessageRaw = (id, message) => Uint8Array.of(
  ...createHeader(id, TRANSMIT),
  ...asUint8(Uint32Array.of(message.length * (message.byteLength || 1))),
  ...asUint8(message)
)

Tests:

bench-fp
for (let i = 0; i < 100000; i++) { createTransmitMessageFp(1, Uint8Array.of(i)) }
bench-raw
for (let i = 0; i < 100000; i++) { createTransmitMessageRaw(1, Uint8Array.of(i)) }

Run results for: lumiere fp vs raw

bench-fp

bench-raw