RELEASE_NOTES.md

0.3.0 April 05 2016

Major upgrade to the performance and stability of DedicatedThreadPool.

Previous (v0.2) numbers:

      Metric |       Units / s |         Max / s |     Average / s |         Min / s |      StdDev / s |

---------------- |---------------- |---------------- |---------------- |---------------- |---------------- | [Counter] BenchmarkCalls | operations | 2,381,933.51 | 2,335,262.42 | 2,123,061.11 | 75,849.97 |

Current (v0.3) numbers:

      Metric |       Units / s |         Max / s |     Average / s |         Min / s |      StdDev / s |

---------------- |---------------- |---------------- |---------------- |---------------- |---------------- | [Counter] BenchmarkCalls | operations | 9,998,100.36 | 8,661,529.31 | 7,093,003.46 | 944,954.17 |

0.2.0 Mar 26 2015

Added deadlock detection to the DedicatedThreadPool and other bug / performance fixes.

Deadlock detection is somewhat simplistic and it can't tell the difference between extremely long running tasks and a deadlock, so by default it's disabled.

However, if you want to enable it you can turn it on via the the DedicatedThreadPoolSettings class:

/*
 * Any task running longer than 5 seconds will be assumed deadlocked
 * and aborted.
 */
using (var threadPool = new Helios.Concurrency.DedicatedThreadPool(
        new DedicatedThreadPoolSettings(numThreads, TimeSpan.FromSeconds(5))))
{
    threadPool.QueueUserWorkItem(() => { ... }));
}

0.1.0 Mar 17 2015

Initial build of DedicatedThreadPool. Works via the following API:

using (var threadPool = new Helios.Concurrency.DedicatedThreadPool(
        new DedicatedThreadPoolSettings(numThreads)))
{
    threadPool.QueueUserWorkItem(() => { ... }));
}

Creates a DedicatedThreadPool object which allocates a fixed number of threads, each with their own independent task queue.

This DedicatedThreadPool can also be used in combination with a DedicatedThreadPoolTaskScheduler for TPL support, like this:

//use 3 threads
var Pool = new DedicatedThreadPool(new DedicatedThreadPoolSettings(3));
var Scheduler = new DedicatedThreadPoolTaskScheduler(Pool);
var Factory = new TaskFactory(Scheduler);

 var task = Factory.StartNew(() =>
{
    //work that'll run on the dedicated thread pool...
});

task.Wait();