go、java、netcore性能测试记录

package main

import (
    "fmt"
    "os"
    "os/signal"
    "syscall"
    "time"
)

func main() {
    t1 := time.Now() // get current time
    //logic handlers
    for i := 0; i < 100000; i++ {
        fmt.Println("hello world")
    }
    elapsed := time.Since(t1)
    fmt.Println("App elapsed: ", elapsed)

    sig := make(chan os.Signal, 2)
    signal.Notify(sig, syscall.SIGTERM, syscall.SIGINT)
    <-sig
}

import java.io.IOException;

public class HelloWorld {
  public static void main(final String[] args) throws IOException {

    final long time1 = System.currentTimeMillis();
    int i = 0;
    for (; i < 100000; i++) {
      System.out.println("hello world");
    }

    final long time2 = System.currentTimeMillis();
    System.out.println("当前程序耗时：" + (time2 - time1) + "ms");

    System.in.read();
  }
}

using System;
using System.Diagnostics;
using System.Threading.Tasks;
using System.Threading;

namespace netcore_prj
{
  class Program
  {
    static async Task Main(string[] args)
    {
      var watch = new Stopwatch();
      watch.Start();
      for (var i = 0; i < 100000; i++)
        Console.WriteLine("hello world");

      watch.Stop();
      Console.WriteLine($"循环100000次Say Hello World,用时：{watch.ElapsedMilliseconds}ms");

      Console.ReadLine();
    }

  }
}