Thank you so much for your explanation :) It means a lot to me. So just to see if I understood.

By launching 50 it means that each core is going to have a queue of approx 12 streams to be processed by each core. Only 4 simultaneously.

Because the queue is long, and gets longer because I'm always adding more in each while cycle,the available throughput,cpu and memory gets smaller, causing a bottleneck.

Did I get it? :)

So the fact that one stream is bigger than the other does not impact?

In reply to Re^2: Fork vs pThreads by ThelmaJay
in thread Fork vs pThreads by ThelmaJay

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