C# 7 and .NET Core Cookbook

Using a parallel foreach loop

A while ago, during a work retreat (yes, the company I work for is really that cool), Graham Rook, who is one of my colleagues, showed me a parallel foreach loop. It certainly speeds up processing a great deal. But here's the rub. It makes no sense to use a parallel foreach loop if you're dealing with small amounts of data or little tasks. The parallel foreach loop excels when there is bulk processing to do or huge amounts of data to process.