ffi-bench.js

import { createRequire } from "node:module"
import { Compiler } from './lib/tcc.js'
import { bind, assert, dlsym, dlopen, RTLD_NOW, RTLD_LOCAL } from './lib/ffast.js'
import { Bench } from './lib/bench.js'

const handle = assert(dlopen('./build/Release/noop.node', RTLD_NOW | RTLD_LOCAL))
const sym = assert(dlsym(handle, 'noop'))
//const noop = createRequire(import.meta.url)('./build/Release/noop.node')

const compiler = new Compiler()

compiler.compile(`
void noop () {
}
`)

const noop_fast_ffi = bind(sym, 'void', [])
const noop_slow_ffi = bind(sym, 'void', [], true)

const noop_fast_ffi_tcc = bind(compiler.symbol('noop'), 'void', [])
const noop_slow_ffi_tcc = bind(compiler.symbol('noop'), 'void', [], true)

//const { noop_fast, noop_slow } = noop
const bench = new Bench()

while (1) {
/*
  for (let j = 0; j < 5; j++) {
    const runs = 300000000
    bench.start('noop_fast')
    for (let i = 0; i < runs; i++) assert(noop_fast() === undefined)
    bench.end(runs)
  }

  for (let j = 0; j < 5; j++) {
    const runs = 100000000
    bench.start('noop_slow')
    for (let i = 0; i < runs; i++) assert(noop_slow() === undefined)
    bench.end(runs)
  }
*/
  for (let j = 0; j < 5; j++) {
    const runs = 300000000
    bench.start('noop_fast_ffi')
    for (let i = 0; i < runs; i++) assert(noop_fast_ffi() === undefined)
    bench.end(runs)
  }

  for (let j = 0; j < 5; j++) {
    const runs = 100000000
    bench.start('noop_slow_ffi')
    for (let i = 0; i < runs; i++) assert(noop_slow_ffi() === undefined)
    bench.end(runs)
  }

  for (let j = 0; j < 5; j++) {
    const runs = 300000000
    bench.start('noop_fast_ffi_tcc')
    for (let i = 0; i < runs; i++) assert(noop_fast_ffi_tcc() === undefined)
    bench.end(runs)
  }

  for (let j = 0; j < 5; j++) {
    const runs = 100000000
    bench.start('noop_slow_ffi_tcc')
    for (let i = 0; i < runs; i++) assert(noop_slow_ffi_tcc() === undefined)
    bench.end(runs)
  }

}