多种语言的性能测试

因工作需要,学过几门编程语言,有些时候需要关注程序的运行速度问题,所以特意测试了几门语言的性能。


测试电脑的配置:

CPU:  i3-2120 @3.3GHz

RAM:  16GB

OS:  Win7 64bit sp1


测试程序:

测试的程序包含循环,函数调用,逻辑比较,数学运算,字符串处理等


1, Java

Java版本:

java version "1.8.0_65"
Java(TM) SE Runtime Environment (build 1.8.0_65-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.65-b01, mixed mode)


Java程序:

public class Main {

    public static void main(String[] args) {
        long t1 = System.currentTimeMillis();
          
        for(int i=0; i<10000000; i++){
            aaa((float)i);
        }  
          
        long t2 = System.currentTimeMillis();
          
        System.out.println("java time: " + String.valueOf(t2 - t1) + "ms");
    }  
      
    static void aaa(float i) {
        float a = i + 1;
        float b = 2.3f;
        String s = "abcdefkkbghisdfdfdsfds";
          
        if(a > b){
            ++a;
        }else{
            b = b + 1;
        }  
  
        if(a == b){
            b = b + 1;
        }  
          
        float c = (float)(a * b  + a / b - Math.pow(a, 2));
          
        String d = s.substring(0, s.indexOf("kkb")) + String.valueOf(c);
    }
}

运行:

javac Main.java
java Main
java time: 1793ms


2, JavaScript

Node版本:

v6.2.0


JavaScript程序:

var t1 = (new Date()).getTime();  

for(var i=0; i<10000000; i++){  
    aaa(i);  
}  
  
var t2 = (new Date()).getTime();  
  
console.log("nodejs time:" + (t2 - t1) + "ms");  
      
  
function aaa(i){  
    var a = i + 1;  
    var b = 2.3;  
    var s = "abcdefkkbghisdfdfdsfds";  

    if(a > b){  
        ++a;  
    }else{  
        b = b + 1;  
    }  

    if(a == b){  
        b = b + 1;  
    }  

    var c = a  * b + a / b - Math.pow(a, 2);  
      
    var d = s.substring(0, s.indexOf("kkb")) + c.toString();  
}  

运行:

node a.js

nodejs time:5474ms


3, Lua

Lua版本:

lua有两个,一个是lua5.2,一个是luajit 2.1.0-beta2


lua程序:

function aaa(i)  
     a = i + 1  
     b = 2.3  
     s = "abcdefkkbghisdfdfdsfds"  
  
    if(a > b) then  
        a = a+1  
    else  
        b = b + 1  
    end  
  
    if(a == b) then  
        b = b + 1  
    end  
  
     c = a  * b + a / b - math.pow(a, 2)  
     d = string.sub(s, 0, string.find(s, "kkb")) .. tostring(c)  
end  

t1 = os.clock()  

for i=0, 10000000, 1 do
    aaa(i)
end  

t2 = os.clock()

print("lua time: " .. (t2 - t1) * 1000 .. "ms")

运行:

luajit a.lua
lua time: 2531ms

lua52 a.lua
lua time: 28447ms


4, Python

Python版本:

Python 2.7.10


Python程序:

import sys, time, math

def aaa(i):
	a = i + 1
	b = 2.3
	s = "abcdefkkbghisdfdfdsfds"

	if a > b:
		a = a + 1
	else:
		b = b + 1

	if a == b:
		b = b + 1

	c = a * b +a / b - math.pow(a, 2)

	d = s[0: s.find("kkb")] + str(c)


t = time.time()

for i in xrange(0, 10000000):
	aaa(i)

print 'Python time: %.02f' % (time.time() - t)

运行:

python a.py

Python time: 24.35s


5, GameMonkey

GameMonkey版本:

GameMonkey v1.29.4


GameMonkey程序:

global aaa = function(i) {
    a = i + 1;
    b = 2.3;
    s = "abcdefkkbghisdfdfdsfds";

    if(a > b) {
        a = a + 1;
    } else {
        b = b + 1;  
    }

    if(a == b) {
        b = b + 1;
    }

    c = a * b + a / b - power(a, 2);

    d = s.Mid(0, s.Find("kkb")) + c.String();
};

TICK();

for(i=0; i<10000000; i=i+1) {
    aaa(i);
}

print("GameMonkey time: ", TICK());

运行:

gme a.gm

GameMonkey time: 25.25s



6, PHP

PHP版本:

PHP7


PHP程序:

 $b){  
        ++$a;  
    }else{  
        $b = $b + 1;  
    }  
  
    if($a == $b){  
        $b = $b + 1;  
    }  
  
    $c = $a * $b + $a / $b - pow($a, 2);  
    $d = substr($s, 0, strpos($s, 'kkb')) . strval($c);  
}  
?>

运行:

php time: 10000ms 左右


7, 之后有其他语言的再补上


结论:

Java的速度快,JavaScritp跟随其后,PHP有所进步,其他的脚本语言差不多,值得一提的是Luajit 比 JS 的快。




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