A simple example to read. Net parallel programming

This example tries to demonstrate the functionality of parallel processing in the most concise code, which uses single-threaded and multi-threaded operations 5 times in a 1-second time, respectively. Print out the execution process and time-consuming.

The following is the sample code, which requires more than 4.0. NET Framework.

usingSystem;usingSystem.Collections.Generic;usingSystem.Collections.Concurrent;usingSystem.Diagnostics;usingSystem.Linq;usingSystem.Threading;usingSystem.Threading.Tasks;namespaceparalleldemo{classProgram {Static voidMain (string[] args) {            //First do the sequential version.Console.WriteLine ("executing sequential loop ..."); Stopwatch Stopwatch=NewStopwatch (); Stopwatch. Start ();
Single Thread Execution for(inti =0; I <5; i++) {TestMethod (); } stopwatch.            Stop (); Console.WriteLine ("sequential loop time in milliseconds: {0}", stopwatch.            Elapsedmilliseconds); //Reset Timer and results matrix.stopwatch.            Reset (); Console.WriteLine ("executing parallel loop ..."); Stopwatch. Start ();
Multithreaded Execution Parallel.For (0,5, i =TestMethod ()); Stopwatch.            Stop (); Console.WriteLine ("Parallel loop time in milliseconds: {0}", stopwatch.            Elapsedmilliseconds); //Keep the console window open in debug mode.Console.WriteLine ("Press any key to exit.");        Console.readkey (); }        Static voidTestMethod () {varTid =Thread.CurrentThread.ManagedThreadId; Console.WriteLine ("Thread {0} start", Tid); Thread.Sleep ( +); Console.WriteLine ("Thread {0} end", Tid); }    }}

Run results

Executing sequential loop ... Thread 9 Startthread 9 Endthread 9 Startthread 9 Endthread 9 Startthread 9 Endthread 9 Startthread 9 Endthread 9 StartThre Ad 9 Endsequential looptime in milliseconds:5004 executing parallel loop ... Thread 9 startthread startthread one startthread startthread startthread 9 endthread endthread one Endthread 12 Endthread EndParallel looptime in milliseconds:1024 Press any key to exit.

Attached: official example

A simple example to read. Net parallel programming