ruby-concurrency / concurrent-ruby / #2776

    # @!macro [attach] cached_thread_pool

    #   A thread pool that dynamically grows and shrinks to fit the current workload.

    #   New threads are created as needed, existing threads are reused, and threads

    #   that remain idle for too long are killed and removed from the pool. These

    #   pools are particularly suited to applications that perform a high volume of

    #   short-lived tasks.

    #

    #   On creation a `CachedThreadPool` has zero running threads. New threads are

    #   created on the pool as new operations are `#post`. The size of the pool

    #   will grow until `#max_length` threads are in the pool or until the number

    #   of threads exceeds the number of running and pending operations. When a new

    #   operation is post to the pool the first available idle thread will be tasked

    #   with the new operation.

    #

    #   Should a thread crash for any reason the thread will immediately be removed

    #   from the pool. Similarly, threads which remain idle for an extended period

    #   of time will be killed and reclaimed. Thus these thread pools are very

    #   efficient at reclaiming unused resources.

    #

    #   The API and behavior of this class are based on Java's `CachedThreadPool`

    #

    #   @note When running on the JVM (JRuby) this class will inherit from `JavaCachedThreadPool`.

    #     On all other platforms it will inherit from `RubyCachedThreadPool`.

    #

    #   @see Concurrent::RubyCachedThreadPool

    #   @see Concurrent::JavaCachedThreadPool

    #

    #   @see http://docs.oracle.com/javase/tutorial/essential/concurrency/pools.html

    #   @see http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/Executors.html

    #   @see http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html

    end

  else

    # @!macro cached_thread_pool

    end

  end

end