lei-benchmark

node-lei-benchmark

基于Node.js的Benchmark工具

安装

$ npm i lei-benchmark --save

需要 Node.js v4.0.0 或更高版本

使用方法

'use strict';
 
const benchmark = require('lei-benchmark');
 
const options = {
  thread: 10,
  num: 100,
  timeout: 400,
};
 
/**
 * 四舍五入
 *
 * @param {Number} num 值
 * @param {Number} n   小数点位数
 * @returns {Number} 
 */
function fixed(num, n) {
  n = n || 0;
  return Number(Number(num).toFixed(n));
}
 
let lastPercent = '';
benchmark
  // 设置并发数量
  .thread(options.thread)
  // 设置总测试次数
  .num(options.num)
  // 设置每次测试的超时时间,ms
  .timeout(options.timeout)
  // 请求任务处理函数
  .request(req => {
 
    // TODO: 此处可以为任何异步任务
    setTimeout(() => {
      req.time('part1');
      setTimeout(() => {
        req.end(Date.now() % 3 === 0 ? new Error('just for test') : null);
      }, Math.random() * 500);
    }, Math.random() * 500);
 
  })
  // 进度通知处理函数
  .progress((info, task) => {
 
    // TODO: 显示当前进度
    const percent = fixed(info.percent, 0);
    if (percent === lastPercent) return;
    lastPercent = percent;
    console.log('进度: %s%%, (%s/%s)', lastPercent, info.finish, info.total);
 
  })
  .start(function (err, result) {
 
    // TODO: 显示结果
    if (err) throw err;
 
    console.log('======================================================');
    console.log('共请求%s次（%s并发）, 其中失败%s次, 共耗时%sms', result.num, options.thread, result.error, fixed(result.spent));
    console.log('----------------');
    const perSpent = result.spent / result.num;
    console.log('处理速率:\t%s次/秒, %s次/分钟', fixed(1000 / perSpent, 1), fixed(60000 / perSpent, 1));
    console.log('单个请求耗时:\t平均%sms, 最大%sms, 最小%sms', fixed(result.avg), fixed(result.max), fixed(result.min));
    console.log('----------------');
 
  });

License

The MIT License (MIT)

Copyright (c) 2014-2016 Zongmin Lei <[e-mail]>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.