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aminer10
Beginner
29 Views

Lockfree_mpmc was updated ..


Hello,


I have been working all the night on the following problem:

'Sometimes' the producer threads of my Threadpool was hanging ,
and i have finally discovered what is the problem...

In the push() method inside lockfree_mpmc.pas you will see that
it is using a repeat until , this tight loop around the CAS
was not working properly and was hanging the producer threads
from time to time, and the solution to this problem was to
add a sleep(0) in this tight loop.

Now Threadpool is working perfectly , and is perfectly stable
- i have tested it all the night ! - .


Please download all my modules that contains lockfree_mpmc.pas
- like ParrallelQueue, Threadpool, Pthreadpool , Parallel compression ,
Parallel Quicksort etc. -

Welcome: http://pages.videotron.com/aminer/

Amine Moulay Ramadne



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aminer10
Beginner
29 Views


Hello again,


I have retested my ParallelQueue algorithm , it's perfectly stable
and it is scoring the same in my benchmarks on an Intel Core
2 Quad Q6600:

17 millions of pop() transactions per second !

and

3.4 millions of push() transactions per second !


And i am using ParallelQueue inside my Thread Pool Engine.

http://pages.videotron.com/aminer/parallelqueue/parallelqueue.htm

Sincerely,
Amine Moulay Ramdane.

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