Execute ForEach in Parallel - C#

Abhishek Thakur Published at Dev

8

Abhishek Thakur

I have a foreach statement like

// distinctValues is DataTable with thousand of rows
foreach (DataRow row in distinctValues.Rows)
{
    // Lots of Statements
}

Is there a way to execute forfach Statement in Parallel for faster execution?

Dmitry Bychenko

Well, the only (little) difficulty is that DataTable (if I guessed distinctValues type right) doesn't implement IEnumerable<DataRow> interface However, you can easily obtain it with a help of .AsEnumerable() extension method:

Parallel.ForEach implemenation

  Parallel.ForEach(distinctValues.AsEnumerable(), row => { 
    // Lots of Statements 
  });

PLinq (Parallel Linq) code which can be more convenient for experimenting:

  distinctValues
    .AsEnumerable()
    .AsParallel()
    //.AsOrdered()
    //.WithMergeOptions(ParallelMergeOptions.NotBuffered)
    //.WithDegreeOfParallelism(4)
    .ForAll(row => {
       // Lots of Statements
    });

Collected from the Internet

Please contact [email protected] to delete if infringement.

edited at2021-05-24

Comments

0 comments

Login to comment

Related

Pthreads PHP : execute Foreach Loop in Parallel

Possible to execute ForEach-Object commands in Parallel

C# Parallel Foreach + Async

Parallel.foreach in C#

Foreach into Parallel.Foreach c#

Why execute the Return statement first instead of the Parallel. ForEach

C# How Parallel.ForEach / Parallel.For partitioning works

Parallel ForEach confusion .Net C#

Unit Testing Parallel.Foreach C#

Parallel.For/Foreach threads reuse C#

c# Parallel.ForEach throwing indexOutOfBoundException

c# parallel foreach loop finding index

C# Parallel Foreach repeat approach

Parallel.ForEach with tuple return c#

Parallel.ForEach is not working as expected C#

C# Parallel.ForEach, not working

How to execute multiple async calls in parallel efficiently in C#?

C# EF Core - Partition input and Execute queries in parallel

Is it safe to r/w dictionary entries in a Parallel.ForEach in c#

R foreach parallel processing with unexported functions (with C50 example)

Persist variable on thread in C# Parallel.ForEach

Optimize this code to Parallel.ForEach or any better way in C#

Parallel.ForEach not adding items as expected in ConcurrentBag in C#

Is this C# Parallel.ForEach "localFinally" method thread safe?

C# LINQ, convert a number of parallel for loops nested in a foreach

Add items to ConcurrentBag used to Parallel.ForEach c#

C# Parallel.ForEach blocked on long iteration

break Parallel.ForEach if user press key 'c'

C# Updating multiple xml files using Parallel.ForEach

TOP Ranking

Article

HotTag

Archive