Java and C# and Threadpool

Posted by Ramin... on 20. May 2015

Hello..



We have to be smart please, please look at the ThreadPoolExecutor Class
of Java, look for example at the awaitTermination() method, it says:






boolean awaitTermination(long timeout, TimeUnit unit)



Blocks until all tasks have completed execution after a shutdown
request, or the timeout occurs, or the current thread is interrupted,



whichever happens first.



read more here:



https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html#method.summary



Did you notice ?



In Java when you wait for the tasks you have to wait for "ALL" the
tasks, and that's not efficient , and if you want to use the object from
multiple threads i think it will have the same effect, you can avoid
some of the problems by using many objects of the ThreadPoolExecutor
class but this will take ressources and this will cause more and more
context switches and that's bad, i think C# has the same problem, other
than that Java and C# don't support priorities, it means that you can
not give priorities to tasks/jobs, like high or normal or low, and
that's not good for games and other applications where you have to use
priorities even if the system is not a realtime system, this is why i
have decided to implement my efficient Threadpool engine version 2.0
that supports those characteristics, so that you can create a child
object of the Threadpool class that will use the same worker threads and
that will wait only for the tasks that you will add with the execute()
method , and also my efficient Threadpool engine supports 3 priorities,
High and normal and low, that's where my efficient Threadpool engine
comes in hand and that's where it's efficient. Hope you will like it.



And as you have noticed i have implemented an efficient Threadpool
engine version 2.0, also what i want to say in this post, is that i have
made it smart like a smart automaton with states and transitions that
will guide you using exception handling so that to avoid the forbiden
transitions. I have enhanced the automaton and i think that it's
efficient now, please read the HTML tutorial inside the zip file to
understand how to use the execute() and setCounter() and wait() methods etc.



You can download my efficient Threadpool Engine version 2.0 from:



https://sites.google.com/site/aminer68/threadpool-with-priorities



Thank you,
Amine Moulay Ramdane.


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