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Can a socket send and receive at the same time?
You can’t send or receive anything until you are connected to another TCP socket on the remote machine. Once connected, a TCP socket can only send and receive to/from the remote machine. UDP is not connection-based, you can send and receive to/from anyone at any time with the same socket.
Is socket a thread?
What are Sockets and Threads? A socket is a software endpoint that establishes bidirectional communication between a server program and one or more client programs. A thread is a sequence of instructions that run independently of the program and of any other threads.
Do servers use multiple threads?
Multiple client requests to one server are handled concurrently in multiple contexts. The system allocates a separate thread for each request. If necessary, additional threads (up to the number indicated by MAXDISPATCHTHREADS) are created. The system keeps statistics on server threads.
Is the number of threads in a system wrong?
This is absolutely wrong in the sense it was an expression designed for decade old systems where multithreading had such gigantic overhead that dual core systems were struggling already to get the best out of 2 physical cores: imagine with 4 logical cores!
How to benchmark with large number of threads?
We should benchmark three configurations: one with a small number of threads, one with a medium number of threads, one with many threads (this allows to understand the scaling more appropriately) A benchmark that scales very well with a large number of threads (low overhead per thread)
Is the efficiency of overcommitting threads lower?
The efficiency when overcommitting threads is also lower (93.1%). Conclusion: you better use hyperthreading, by setting the number of threads to the number of logical cores.
What happens to the number of threads in hyperthreading?
So does 12 threads. Conclusion: you better use hyperthreading, by setting the number of threads to the number of logical cores. Virtualization hurts the performance by about 10%, and/or the CPU generation took a large hit.