Sep 27, 2012 · PLINQ was added in the .NET 4.0 Framework as an extension to LINQ. What is it? What problems does it solve? When is it appropriate and when not?

PLinq is the parallel version of Linq. Some queries can be executed on multiple threads and then PLinq gives a performance increase. However other queries can´t be executed in parallel or will give wrong results if done so. So when to use PLinq is something you should decide on for each query and make sure the performance actually increases.

Dec 14, 2015 · PLINQ (Parallel Linq) is simply a new way to write regular Linq queries so that they run in parallel - in other words, the Framework will automatically take care of running your query across multiple threads so that they finish faster (i.e. using multiple CPU cores).

Jul 28, 2011 · WithDegreeOfParallelism dictates how many Tasks should PLINQ create, but not necessarily how many threads will be used. Since Tasks execute as work items on the ThreadPool, the number of threads executing the query will be limited the size of the ThreadPool. The ThreadPool will add threads as necessary, but it may take a while - ThreadPool may add 2 threads per second or so. If you want to add ...

Update 2011-05-20 12:49AM: The foreach is still 25% faster than the parallel solution for my application. And don't use the collection count for max parallelism, use somthing closer to the number of

Jul 5, 2013 · PLINQ, collect all of them and save in one go (if the memory permits) 2. Use the Parallel.ForEach inside a Task and save each hash separately - you'll have to synchronize the file access here with locks, but it's more of a 'streaming' behavior.

Feb 25, 2016 · StackOverflow, Within C# PLINQ I understand the position of ".AsParallel ()" impacts how the query is run. For example, where ".AsParallel ()" occurs in the middle of a query it will execute sequentially before the method and parallel after the method. (PLINQ: Parallel Queries in .NET).

Dec 18, 2016 · Additionally it looks like GetTransactionDetails is using the async over sync anti-pattern. It shouldn't offload the work to another thread, rather it should just be a synchronous method. If the caller wants to call it with Task.Run, they can, if they want to do something else, like use PLINQ, then they could do that.

Jan 17, 2014 · As stated here, PLINQ is for running LINQ queries in parallel on multi-core/multi-processor systems. It hasn't too much to do about cool systems having a lot of disk units and super networking capabilities. AFAIK, it's made for running executable code on more cores, not for concurrently dispatching multiple I/O requests to the operating system.

Sep 28, 2011 · But how to do it with PLINQ? Side Note: As I've mentioned in the comments, performance is not a key factor for me so far, since the server's only purpose is to synchronize the MySQL Database (on another server) with a MS SQL-Server (on the same server as this Windows-Service).