pythonphp performance comparison_golang, python, php, c++, c, java performance comparison

Original title：Performance comparison of golang, python, php, c++, c, and java

Golang, python, php, c+& in 2017 #43;, c, java, Nodejs performance comparison

When I was working on PHP/C’/Go/Py, I had a sudden idea and wanted to make it mainstream recently. To make a simple comparison of the performance of programming languages ​​- as for how to compare – we still have to use the magical Fibonacci algorithm. Maybe it’s more commonly used or fun.

Okay，talk is cheap, show me your code! Open Mac，Click on Clion and start coding！

1. Why is the first What about Go? Because I personally am using it recently and it feels very good.

package main import “fmt” func main{ fmt.Println(fibonacci(34)) } func fibonacci(i int ) int{ if(i<2){ return i; } return fibonacci(i-2) + fibonacci(i-1); }

Let’s take a look with Go1.7 first&#xff1a ;

qiangjian@localhost:/works/learnCPP$ go version && time go build fib.go && time ./fib go version go1.7.5 darwin/amd64 real 0m0.206s user 0m0.165s sys 0m0.059s 5702887 real 0m0.052s user 0m0.045s sys 0m0.004s

Then，Look at 1.8’s：

qiangjian@localhost: /works/learnCPP$ go18 version && time go18 build fib.go && time ./fib go version go1.8 darwin/amd64 real 0m0.204s user 0m0.153s sys 0m0.062s 5702887 real 0m0.051s user 0m0.045s sys 0m0 .003s

I can’t see the difference，But the official 1.8 has been optimized and improved by 20% in aspects such as GC and Compile，Maybe this demo is too simple.

2.Python，has been very popular recently，so let’s compare

def fibonacci(i): if i<2: return i return fibonacci(i -2) + fibonacci(i-1) print(fibonacci(34))

Let’s take a look at python2.7 first

qiangjian@localhost:/works/ learnCPP$ python2 -V && time python2 ./fib.py

Python 2.7.13

5702887

real 0m2.651s

user 0m2.594s

sys 0m0.027s

Then Py 3.5

qiangjian@localhost:/works/learnCPP$ python3 -V && time python3 ./fib.py Python 3.5.1 5702887 real 0m3.110s user 0m2.982s sys 0m0.026s

The biggest problem with Py can be seen at a glance：The more you upgrade, the slower it becomes， And the terrible thing is that many syntaxes are incompatible – but I usually write algorithms and small programs pretty well – other times – forget it – just use Go.

3. PHP，I use it a lot for work，so I have to compare it

Since I mainly use php5.4 for my work，so First come wave：

qiangjian@localhost:/works/learnCPP$ php54 -v && time php54 fib.php PHP 5.4.43 (cli) (built: Dec 21 2016 12:01 :59) Copyright (c) 1997-2014 The PHP Group Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies 5702887 real 0m2.288s user 0m2.248s sys 0m0.021s

Test environment It’s 5.6，so it’s also coming：

qiangjian@localhost:/works/learnCPP$ php -v && time php fib.php PHP 5.6.28 (cli) (built : Dec 6 2016 12:38:54) Copyright (c) 1997-2016 The PHP Group Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies 5702887 real 0m2.307s user 0m2.278s sys 0m0.017s

New projects and fun stuff all use php7, please see：

qiangjian@localhost:/works/learnCPP$ php -v && time php fib.php PHP 7.1.2 (cli) (built: Feb 17 2017 10:52:17) ( NTS ) Copyright (c) 1997-2017 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies 5702887 real 0m0. 815s user 0m0.780s sys 0m0.015s

I feel that php7 and 5 are completely different and “not the same thing” Brother, give me a thumbs up ！ I suggest you use php7 more.

4.C++ is my favorite theoretical basis，Of course I am talking about C+& #43;11/14，Not old antique c99 etc.

#include constexpr int fibonacci(const int i){ if(i<2) return i; return fibonacci(i-2) &#43 ; fibonacci(i-1); } int main { fibonacci(34); return 0; }

Use g first and take a look at 6.2 without optimization：

qiangjian@localhost:/works/learnCPP$ time g++-6 -o a.bin main.cpp && time ./a.bin real 0m0.378s user 0m0.254s sys 0m0.104s 5702887 real 0m0.050s user 0m0.043s sys 0m0.002s

After adding optimization-O2，

qiangjian@localhost:/works/learnCPP$ time g++-6 -O2 -o a.bin main.cpp && time ./a.bin real 0m0.874s user 0m0.344s sys 0m0.180s 5702887 real 0m0.034s user 0m0.019s sys 0m0.004s

The effect is still very obvious – the running time is only half of the former.

5. C also wrote one

#include int fibonacci(int i){ if(i<2) return i; return fibonacci(i-2) + fibonacci(i-1); } int main{ printf("%d",fibonacci(34)); }

No optimization：

qiangjian@ localhost:/works/learnCPP$ time gcc-6 -o c.bin fib.c && time ./c.bin real 0m0.341s user 0m0.063s sys 0m0.101s 5702887 real 0m0.049s user 0m0.044s sys 0m0. 002s

Add -O2 optimization:

qiangjian@localhost:/works/learnCPP$ time gcc-6 -O2 -o c.bin fib.c && time ./c .bin real 0m0.143s user 0m0.065s sys 0m0.034s 5702887 real 0m0.034s user 0m0.028s sys 0m0.002s

and C++14 is the same， After optimization, the speed is obviously twice as fast.

6.Java is what I least want to write. Although it is very popular, it feels too bloated.

class Fib{ public static void main( String[] args){ System.out.println(fibonacci(34)); } static int fibonacci( int i){ if(i<2) return i; return fibonacci(i-2) + fibonacci(i -1); } }

The result of compiling and running is：

qiangjian@localhost:/works/learnCPP$ java -version && time javac Fib.java && time java Fib java version “1.8.0_25” Java(TM) SE Runtime Environment (build 1.8.0_25-b17) Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode) real 0m0.952s user 0m1.302s sys 0m0.144s 5702887 real 0m0.150s user 0m0.123s sys 0m0.025s

The performance is okay， Compile time is too much compared to c\#43;+/go Low.

7. Of course, the last one to appear is the always popular java – no – to be precise, it is Nodejs (this thing has nothing to do with java)

function fibonacci(i){ if(i<2) return i; return fibonacci(i-2) + fibonacci(i-1); } console.log(fibonacci(34))

Results：

qiangjian@localhost:/works/learnCPP$ node -v && time node fib.js v6.10.0 5702887 real 0m0.332s user 0m0.161s sys 0m0.062s

The result is still shocking，It only takes TMD 0.3s，Total is less than 0.5s，Almost close to Java，But the amount of code and maintainability are The advantages are really thanks to Google, Chromium’s V8 son, and the open source community.

If Nodejs really runs stably， It may not really be able to unify the “program world”，Of course I’m just talking-Don’t take it too seriously.

Let’s take a look at the picture：

Summary：

I feel that each language has different uses，Performance is just a single indicator，What I value more is：readability, maintainability, portability, robustness, and expansion Sex，Then there’s performance. Moreover, modern hardware is becoming more and more powerful – mobile phones often have 8G CPUs that can catch up with the CPUs of PCs 5 years ago – SSDs are becoming more and more popular… I am more optimistic about Golang/php/python， I also pay attention to modern C# such as 14 and 17. As for rust, swift, java, scala, forget it. This is mainly personal. needs and the company’s technology stack. Haha！ Let’s write this much first！Return to Sohu，View more

Editor in charge：