I am a bit of confused about Parallel.ForEach. What is Parallel.ForEach and what does it exactly do? Please don’t reference any MSDN link. Here’s a simple example : string[] lines = File.ReadAllLines(txtProxyListPath.Text); List<string> list_lines = new List<string>(lines); foreach (string line in list_lines) { //My Stuff } How can I rewrite this example with Parallel.ForEach? 6 … Read more
What are the differences between using Parallel.ForEach or Task.Run() to start a set of tasks asynchronously? Version 1: List<string> strings = new List<string> { “s1”, “s2”, “s3” }; Parallel.ForEach(strings, s => { DoSomething(s); }); Version 2: List<string> strings = new List<string> { “s1”, “s2”, “s3” }; List<Task> Tasks = new List<Task>(); foreach (var s in … Read more
This question already has answers here: Parallel foreach with asynchronous lambda (11 answers) Closed 3 months ago. In a metro app, I need to execute a number of WCF calls. There are a significant number of calls to be made, so I need to do them in a parallel loop. The problem is that the … Read more
I would like to handle a collection in parallel, but I’m having trouble implementing it and I’m therefore hoping for some help. The trouble arises if I want to call a method marked async in C#, within the lambda of the parallel loop. For example: var bag = new ConcurrentBag<object>(); Parallel.ForEach(myCollection, async item => { … Read more
I have a Parallel.ForEach() async loop with which I download some webpages. My bandwidth is limited so I can download only x pages per time but Parallel.ForEach executes whole list of desired webpages. Is there a way to limit thread number or any other limiter while running Parallel.ForEach? Demo code: Parallel.ForEach(listOfWebpages, webpage => { Download(webpage); … Read more
