node.js MySQL的性能
我正在比较node.js与PHP的写入性能到MySQL数据库。 我在这里使用Apache Benchmark，虚拟机中的linux mint，最新的mysql-server（5.5.43）以及MySQL的驱动程序。 我使用的代码是
server.js
var http = require('http'); var mysql = require('mysql'); var server = http.createServer(function (req, res) { var connection = mysql.createConnection({ host : 'localhost', user : 'root', password : 'root', database : 'testDB' }); connection.connect(); connection.query("INSERT INTO Persons (LastName, FirstName, Address, City) VALUES ('Futterkiste', 'Alfreds', 'Obere Str. 57', 'Berlin')", function(err, rows, fields) { if (!err) console.log('The solution is: ', rows); else console.log('Error while performing Query.'); }); connection.end(); res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World'); }); server.listen(1337, '127.0.0.1'); console.log('Server running at http://127.0.0.1:1337/'); 的index.php
$servername = "localhost"; $username = "root"; $password = "root"; $dbname = "testDB"; try { $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password); // set the PDO error mode to exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "INSERT INTO Persons (LastName, FirstName, Address, City) VALUES ('Futterkiste', 'Alfreds', 'Obere Str. 57', 'Berlin')"; // use exec() because no results are returned $conn->exec($sql); echo "New record created successfully"; } catch(PDOException $e) { echo $sql . "<br>" . $e->getMessage(); } $conn = null; echo "Hello world"; ?>
Apache Benchmark到带有index.php文件的Apache2服务器
ab -n 1000 -c 100 http://localhost/
PHP MySQL写性能
Concurrency Level: 100 Time taken for tests: 1.328 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 230000 bytes HTML transferred: 43000 bytes Requests per second: 752.99 [#/sec] (mean) Time per request: 132.804 [ms] (mean) Time per request: 1.328 [ms] (mean, across all concurrent requests) Transfer rate: 169.13 [Kbytes/sec] received
Apache Benchmark到server.js文件中的node.js服务器
ab -n 1000 -c 100 http://localhost:1337/
node.js MySQL写入性能
Concurrency Level: 100 Time taken for tests: 3.896 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 113000 bytes HTML transferred: 12000 bytes Requests per second: 256.68 [#/sec] (mean) Time per request: 389.585 [ms] (mean) Time per request: 3.896 [ms] (mean, across all concurrent requests) Transfer rate: 28.33 [Kbytes/sec] received
我的印象是node.js比I / O数据库操作中的PHP要好。 所以，令我感到惊讶的是，无论我尝试使用哪种SQL语句（也试过SELECT * FROM Persons），node.js变得更糟。
不仅如此，而且当cuncurrency级别为100时，节点在执行查询时logging了大量的“错误”。 消息发送到控制台，1000个请求中只有500个被写入数据库。 MySQL的节点驱动程序是不是很糟糕，或者我在这里做的事情非常错误？ 我将衷心感谢您的帮助 ：）
谢谢
首先你没有完成server.js代码。 有一个连接打开数据库的错误。 为了解决这个问题，我使用了connectionPool。 其次，Apache使用工作人员并行地运行相同脚本的许多副本。
现在将Apache + PHP + MySQL（XAMP）的结果作为参考：
Concurrency Level: 100 Time taken for tests: 7.476 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 230000 bytes HTML transferred: 42000 bytes Requests per second: 133.77 [#/sec] (mean) Time per request: 747.557 [ms] (mean) Time per request: 7.476 [ms] (mean, across all concurrent requests) Transfer rate: 30.05 [Kbytes/sec] received
现在等于我修复server.js的机会
var http = require('http'); var mysql = require('mysql'); var connection = mysql.createPool({ connectionLimit: 10, host : 'localhost', user : 'test', password : 'test', database : 'testDB' }); var server = http.createServer(function (req, res) { connection.query("INSERT INTO Persons (LastName, FirstName, Address, City) VALUES ('Futterkiste', 'Alfreds', 'Obere Str. 57', 'Berlin')", function(err, rows, fields) { if (!err) console.log('The solution is: ', rows); else { console.log('Error while performing Query.'); } res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World'); }); }); server.listen(1337, '127.0.0.1'); server.on('close', function() { connection.end(); }) console.log('Server running at http://127.0.0.1:1337/');
和Node + MySQL的结果：
Concurrency Level: 100 Time taken for tests: 7.289 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 112000 bytes HTML transferred: 11000 bytes Requests per second: 137.19 [#/sec] (mean) Time per request: 728.899 [ms] (mean) Time per request: 7.289 [ms] (mean, across all concurrent requests) Transfer rate: 15.01 [Kbytes/sec] received
正如你所看到的结果非常接近。 但是这是对阿帕奇11名工作人员的一个节点进程。 如果我将等式添加到等式会发生什么？ 这是修改的代码：
var http = require('http'); var mysql = require('mysql'); var cluster = require('cluster'); if (cluster.isMaster) { cluster.fork(); cluster.fork(); cluster.fork(); cluster.fork(); } else { var connection = mysql.createPool({ connectionLimit: 10, host : 'localhost', user : 'test', password : 'test', database : 'testDB' }); var server = http.createServer(function (req, res) { connection.query("INSERT INTO Persons (LastName, FirstName, Address, City) VALUES ('Futterkiste', 'Alfreds', 'Obere Str. 57', 'Berlin')", function(err, rows, fields) { if (!err) console.log('The solution is: ', rows); else { console.log('Error while performing Query.'); } res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World'); }); }); server.listen(1337, '127.0.0.1'); server.on('close', function() { connection.end(); }) console.log('Server running at http://127.0.0.1:1337/ worker:' + cluster.worker.id); }
四个节点的工作结果：
Concurrency Level: 100 Time taken for tests: 2.782 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 112000 bytes HTML transferred: 11000 bytes Requests per second: 359.48 [#/sec] (mean) Time per request: 278.179 [ms] (mean) Time per request: 2.782 [ms] (mean, across all concurrent requests) Transfer rate: 39.32 [Kbytes/sec] received
为了好奇心，我为十名工人添加节点的结果：
Concurrency Level: 100 Time taken for tests: 2.647 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 112000 bytes HTML transferred: 11000 bytes Requests per second: 377.84 [#/sec] (mean) Time per request: 264.665 [ms] (mean) Time per request: 2.647 [ms] (mean, across all concurrent requests) Transfer rate: 41.33 [Kbytes/sec] received
我的笔记本是Core2Duo T6600，Ubuntu 14.04.3，php 5.5.9，节点0.10.37，mysql 5.5.44