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    <p>Take a look at <a href="http://www.albahari.com/threading/" rel="nofollow">this extensive article on threading</a>. Under section <a href="http://www.albahari.com/threading/part5.aspx#_Concurrent_Collections" rel="nofollow">Concurrent collections</a> you can find an example of a <code>producer/consumer</code> queue that executes tasks.</p> <p>As a general consideration you should not create 10k <code>Task</code> objects and <code>Run()</code> them all. Instead, create <em>n</em> <code>Task</code> instances that will execute the 10k methods you want to execute.</p> <p><strong>EDIT</strong></p> <p>If you want to use <code>ThreadPool</code> to execute the methods you want you'll have to take in consideration the following:</p> <ul> <li>what if one of your <code>Action</code>s throws an exception? <code>ThreadPool</code> does not marshal the exception to the calling thread so there is no way for you to catch it on the calling thread and it will bring your application down.</li> <li>how will you know that <em>all</em> the <code>Action</code>s are completed? <code>ThreadPool</code> does not offer a way to do this - it performs actions in a way that is very close to <em>fire and forget</em> strategy.</li> </ul> <p>On the other hand <code>Task Parallel Library</code>, which is built on top of <code>ThreadPool</code> offers elegant ways to deal with the problems above. The <code>PCQueue</code> example from the link above (<a href="http://www.albahari.com/threading/part5.aspx#_Concurrent_Collections" rel="nofollow">Concurrent collections</a>) shows you how to deal with exceptions thrown from the <code>Action</code>s you are invoking and provides a way to continue your application flow when <em>all</em> the actions are completed.</p> <p>You can use <code>PCQueue</code> like this:</p> <pre><code>var queue = new PCQueue(Environment.ProcessorCount); var tasks = tasksToRunInCurrentBatch.Select(t=&gt;queue.Enqueue(t.Value)).ToArray(); Task.WaitAll(tasks); </code></pre>
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    1. POWhat are the exceptional cases when using Thread Pool
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    1. COI don't see the words - Thread Pool in your answer.
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    2. CO@Yossi, that's because you probably should not use it. `Task`s use `TreadPool` internally but provide you with greater flexibility and reduced development overhead.
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    3. COEven if the example isn't suffice, please try to answer the question.
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