express crc32 benchmark

Makefile

all:
  @./run 128 res-size
  @./run 512 res-size
  @./run 1024 res-size
  @./run 2048 res-size
  @./run 4096 res-size
  @./run 16384 res-size
  @./run 65536 res-size
  @echo

.PHONY: all

res-size.js

var http = require('http');
var express = require('..');
var app = express();

// number of middleware

var n = parseInt(process.env.BUFFER_SIZE || '100', 10);
console.log('  response size: %sB', n);

var body = new Buffer(n);

app.use(function(req, res, next){
  res.send(body);
});

app.listen(3333);

run

#!/usr/bin/env bash

echo
BUFFER_SIZE=$1 node $2 &
pid=$!

sleep 2

wrk 'http://localhost:3333/' \
  -d 10 \
  -c 50 \
  -t 8 \
  | grep 'Requests/sec' \
  | awk '{ print "  " $2 }'

kill $pid