golang与node.js的http模块性能对比测试(go1)

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去年的时候,曾经简单对比了一下golang和nodejs的http模块的性能,见:golang与node.js的http对比测试

那时golang还没发布go1,http模块比nodejs差得很远。

go1出来已经有一段时间了,我知道go的http模块性能已经有比较大的提升,但是最近依然见到有人提起去年写的那篇文章,为避免产生对golang的误解,对于go1的最新测试结果如下。


测试是在Ubuntu 12.04 64位系统下进行的:

qleelulu@nb:~$ uname -a
Linux nb 3.2.0-25-generic #40-Ubuntu SMP Wed May 23 20:30:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

qleelulu@nb:~$ sudo dmidecode | grep cpu
Socket Designation: cpu
Version: Intel(R) Core(TM) i5 cpu M 480 @ 2.67GHz (注:双核4线程)

go的版本:

qleelulu@nb:~$ go version
go version go1

nodejs的版本:

qleelulu@nb:~$ node -v
v0.8.6

cpu测试

nodejs是单进程,只使用一个cpu,所以这里golang在代码中需要限制为只使用一个cpu

go的代码: (注:go代码都是使用 go build xxx.go 编译)

package main

import (
    "fmt"
    "log"
    "net/http"
    "runtime"
)

func main() {
    // 限制为1个cpu
    runtime.GOMAXPROCS(1)

    http.HandleFunc("/",func(w http.ResponseWriter,r  *http.Request) {
        fmt.Fprint(w,"Hello,world.")
    })

    log.Fatal(http.ListenAndServe(":8080", nil))
}

golang请求结果:

qleelulu@nb:~/sources/test$ curl -i http:127.0.0.1:8080/
HTTP/1.1 200 OK
Date: Sun,12 Aug 2012 07:21:00 GMT
Transfer-Encoding: chunked
Content-Type: text/plain; charset=utf-8

Hello,world.
golang单cpu的ab测试结果:

qleelulu@nb:~$ ab -c 100 -n 5000 http:127.0.0.1:8080/
This is ApacheBench,Version 2.3 <$Revision: 655654 $>

Server Software: 

Server Hostname: 127.0.0.1
Server Port: 8080

Document Path: /
Document Length: 13 bytes

Concurrency Level: 100
Time taken for tests: 0.593 seconds
Complete requests: 5000
Failed requests: 0
Write errors: 0
Total transferred: 550000 bytes
HTML transferred: 65000 bytes
Requests per second: 8427.78 [#/sec] (mean)
Time per request: 11.866 [ms] (mean)
Time per request: 0.119 [ms] (mean,across all concurrent requests)
Transfer rate: 905.33 [Kbytes/sec] received
...
共测试五次,五次结果分别如下:

Requests per second: 8427.78 [#/sec] (mean)
Requests per second: 7980.73 [#/sec] (mean)
Requests per second: 7509.63 [#/sec] (mean)
Requests per second: 8242.47 [#/sec] (mean)
Requests per second: 8898.19 [#/sec] (mean)

golang单cpu的webbench测试结果:

qleelulu@nb:~$ webbench -t 30 -c 200 http:127.0.0.1:8080/
Webbench - Simple Web Benchmark 1.5
Copyright (c) Radim Kolar 1997-2004,GPL Open Source Software.

Benchmarking: GET http:127.0.0.1:8080/
200 clients,running 30 sec.

Speed=463124 pages/min,849060 bytes/sec.
Requests: 231562 susceed,128); line-height:1.5!important">0 Failed.
共测试五次,结果如下:

Speed=463124 pages/min,849060 bytes/sec.
Speed=455322 pages/min,834757 bytes/sec.
Speed=461536 pages/min,846149 bytes/sec.
Speed=454798 pages/min,833803 bytes/sec.
Speed=468592 pages/min,859085 bytes/sec.

golang单CPU webbench测试时,CPU使用率如下:

nodejs 单CPU测试代码

var http = require('http');
http.createServer(function (req,res) {
    res.end('Hello,World.');
}).listen(8080,'127.0.0.1');
console.log('Server running at http://127.0.0.1:8080/');

nodejs请求结果:

qleelulu@nb:~/$ curl -i http:45:23 GMT
Connection: keep-alive
Transfer-Encoding: chunked

Hello,World.
为方便对比golang的返回结果,再贴一次golang的返回结果:

golang请求结果:
qleelulu@nb:~/sources/test$ curl -i http: nodejs的单cpu ab测试结果:

655654 $> Server Software: Server Hostname: 0.696 seconds Complete requests: 440000 bytes HTML transferred: 7185.91 [#/sec] (mean) Time per request: 13.916 [ms] (mean) Time per request: 0.139 [ms] (mean,128); line-height:1.5!important">617.54 [Kbytes/sec] received
共测试5次,结果如下

Requests per second: 7185.91 [#/sec] (mean)
Requests per second: 7484.97 [#/sec] (mean)
Requests per second: 7388.25 [#/sec] (mean)
Requests per second: 7411.80 [#/sec] (mean)
Requests per second: 7571.10 [#/sec] (mean)

nodejs单cpu的webbench测试结果:

432582 pages/min,128); line-height:1.5!important">634453 bytes/sec. Requests: 216291 susceed,sans-serif; font-size:13px"> Speed=432582 pages/min,634453 bytes/sec.
Speed=434868 pages/min,637803 bytes/sec.
Speed=435608 pages/min,638891 bytes/sec.
Speed=434466 pages/min,637216 bytes/sec.
Speed=431816 pages/min,633330 bytes/sec.

nodejs单CPU webbench测试时,CPU使用率如下:

单CPU测试go和nodes的ab测试对比结果:

从单CPU的测试结果来看,golang和nodejs的性能差不多,golang要稍微比nodejs的性能好一点。
但是从CPU的使用率来看,特别是在webbench测试的时候,测golang的时候,我笔记本上4个CPU的使用率都在50%左右,而测nodejs的时候,则明显是有一个CPU的使用率是在100%,其他的在30%左右。
对于nodejs, 一个CPU占用去到100%是很正常的,V8引擎也从来都是非常吃CPU的。对于golang为什么限制为仅使用1个CPU,而测试时4个CPU的使用率都去到50%,可能和go对于goroutine的调度方式有关系。

多CPU测试

go测试代码
因为是在同一台机器上测试的,所以限制使用的CPU数为机器的CPU数减一。

限制为CPU的数量减一 runtime.GOMAXPROCS( runtime.NumCPU() - 1 ) http.HandleFunc("/",r *http.Request) { fmt.Fprint(w,"Hello,world.") }) log.Fatal(http.ListenAndServe(":8080",nil)) }
golang的多CPU ab测试结果,共测试5次,结果如下:

$ ab -c 127.0.0.1:8080/

Requests per second:    14391.80 [#/sec] (mean)
Requests per second:    14307.09 [#/sec] (mean)
Requests per second:    14285.31 [#/sec] (mean)
Requests per second:    15182.34 [#/sec] (mean)
Requests per second:    14020.53 [#/sec] (mean)
golang的多CPU webbench测试结果,共测试5次,结果如下:

$ webbench -t 127.0.0.1:8080/

Speed=750418 pages/min,128); line-height:1.5!important">1375982 bytes/sec.
Speed=750492 pages/min,128); line-height:1.5!important">1375909 bytes/sec.
Speed=749128 pages/min,128); line-height:1.5!important">1373408 bytes/sec.
Speed=749720 pages/min,128); line-height:1.5!important">1374486 bytes/sec.
Speed=753080 pages/min,128); line-height:1.5!important">1380698 bytes/sec. 
golang多CPU webbench测试时,CPU使用率如下:

nodejs测试代码
使用cluster,使用CPU数量减一个CPU

var cluster = require('cluster');
var http = require('http');
var numcpus = require('os').cpus().length;

if (cluster.isMaster) {
     Fork workers. fock num of cpuS - 1 works
    for (var i = 1; i < numcpus; i++) {
        cluster.fork();
    }

    cluster.on('exit',function(worker,code,signal) {
        console.log('worker ' + worker.process.pid + ' died');
    }); 
    cluster.on('fork',signal) {
        console.log('worker ' + worker.process.pid + ' is online');
    }); 
} else {
     Workers can share any TCP connection
     In this case its a HTTP server
    http.createServer(function(req,res) {
        res.writeHead(200);
        res.end("hello world.");
    }).listen(8080);
}
nodejs的多cpu ab测试结果,共测试5次,结果如下:

12694.96 [#/sec] (mean) Requests per second: 12606.68 [#/sec] (mean) Requests per second: 12712.68 [#/sec] (mean) Requests per second: 12851.16 [#/sec] (mean) Requests per second: 13005.08 [#/sec] (mean)
nodejs的多cpu webbench测试结果,共测试5次,结果如下:

791932 pages/min,128); line-height:1.5!important">1148301 bytes/sec. Speed=786516 pages/min,128); line-height:1.5!important">1140448 bytes/sec. Speed=797336 pages/min,128); line-height:1.5!important">1156140 bytes/sec. Speed=783182 pages/min,128); line-height:1.5!important">1135619 bytes/sec. Speed=785206 pages/min,128); line-height:1.5!important">1138551 bytes/sec.
nodejs多cpu webbench测试时,cpu使用率如下:

cpu测试结果来看,总体上来说go和nodejs的性能也还是差不多。
但从ab测试的结果来看,go的QPS要比nodejs高一点,
而从webbench测试结果来看,nodejs的QPS要比go高,但是go的bytes/sec又要比nodes高,可能是go的http返回头比nodes要稍微大一点的原因。

cpu测试时的cpu使用情况和单cpu测试时的情况差不多,
golang对4个cpu的占用率都在70%左右,
而node则是对3个cpu的占用在90%以上,还有一个cpu的占用率则要稍微低点。

从整体来看,golang和nodejs的http模块性能不相上下。 go1的性能还是比较喜人的,加上go语音的简洁,是个不错的选择(目前可能go的一些第三方模块都不是很成熟)。

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