runBenchmark.js

const fs = require('fs')
const Web3 = require('web3')

const web3 = new Web3()
web3.setProvider(new web3.providers.HttpProvider('http://localhost:8545'))


const transactionPerSecond = Number.parseInt(process.argv[2] || 10000)
const transactionsPer100Ms = Math.ceil(transactionPerSecond / 10)

console.log((transactionsPer100Ms * 10) + ' transactions per second')


const transactions = fs.readFileSync('transactions.txt', 'ascii').split('\n')
const numTransactions = transactions.length

let stopOnError = false
let i = 0

function batch() {
  const maxI = Math.min(i + transactionsPer100Ms, numTransactions)
  for (; i < maxI; ++i) {
    web3.eth.sendRawTransaction(
      transactions[i],
      (err,res) => { 
        if (err) 
        {
          stopOnError = err 
        }
      }
    )
  }
  if (i < numTransactions && !stopOnError) {
    setTimeout(batch, 100)
  } else if (stopOnError) {
    process.stdout.write(JSON.stringify(stopOnError))
  }

  process.stdout.write('.')
}

setTimeout(batch, 100)