CODEWITHSUNDEEP
c#multithreadingbenchmarkingstopwatch
Naveen Kumar V
Naveen Kumar V

Reputation: 2819

Benchmark for main thread and other thread in C#

I'm given a problem to demonstrate a benchmark for executing functions using Single and Multithread. Am I doing right here? If yes, how can I do so without using Join(). If no, suggest me.

Code

class Threading1 
{
  static void Main (string[] args) 
  {
     Stopwatch timerMain, timerThreads;

     // Main thread 
     timerMain = Stopwatch.StartNew ();
     func1();
     func2();
     func3();
     timerMain.Stop ();
     Console.WriteLine ("Time taken for Main thread: " + timerMain.ElapsedMilliseconds);

     // Other threads
     Thread t1 = new Thread (() => Threading1.func1 ());
     Thread t2 = new Thread (() => Threading1.func2 ());
     Thread t3 = new Thread (() => Threading1.func3 ());
     timerThreads = Stopwatch.StartNew ();
     t1.Start(); t1.Join();
     t2.Start(); t2.Join();
     t3.Start(); t3.Join();
     timerThreads.Stop ();
     Console.WriteLine ("Time taken for Other threads: " + timerThreads.ElapsedMilliseconds);
  }

  // Find maximum value in an array
  static void func1() 
  {
    // Code here. 
  }

  // Find minimum value in an array
  static void func2()
  {
    // Code here. 
  }

  // Find average value of an array
  static void func3()
  {
    // Code here. 
  }
}

Output

Time taken for Main thread: 44
Time taken for other threads: 10

Upvotes: 3

Views: 379

Answers (1)

Backs
Backs

Reputation: 24913

I advice you to use Tasks and method WaitAll to wait, when all tasks are completed.

timerThreads = Stopwatch.StartNew();
var t1 = Task.Run(() => Threading1.func1());
var t2 = Task.Run(() => Threading1.func2());
var t3 = Task.Run(() => Threading1.func3());

Task.WaitAll(t1, t2, t3);
timerThreads.Stop ();
Console.WriteLine ("Time taken for Other threads: " + timerThreads.ElapsedMilliseconds);

In your solution there is no parallel working, all threads are execition one by one.

Upvotes: 2

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