Can processes communicate through shared memory?

Can processes communicate through shared memory?

Inter Process Communication through shared memory is a concept where two or more process can access the common memory. And communication is done via this shared memory where changes made by one process can be viewed by another process.

What is multithreading How does Java support multithreading?

Multithreading is a Java feature that allows concurrent execution of two or more parts of a program for maximum utilization of CPU. Each part of such program is called a thread. So, threads are light-weight processes within a process.

Why is shared memory used?

In computer science, shared memory is memory that may be simultaneously accessed by multiple programs with an intent to provide communication among them or avoid redundant copies. Shared memory is an efficient means of passing data between programs.

Is shared memory scalable?

On the other hand, due to the same reasons, the shared memory systems are less scalable; the data traffic congestion increases with increase in the number of threads/processes that share the same path to access the global memory.

What is the shared memory model of process communication?

One of the models of process communication is the shared memory model. The shared memory in the shared memory model is the memory that can be simultaneously accessed by multiple processes. This is done so that the processes can communicate with each other.

Does Java have a concept of shared memory?

Show activity on this post. AFAIK, memory in Java is based on heap from which the memory is allotted to objects dynamically and there is no concept of shared memory. If there is no concept of shared memory, then the communication between Java programs should be time consuming.

What is shared memory?

What is shared memory? Shared memory is the fastest interprocess communication mechanism. The operating system maps a memory segment in the address space of several processes, so that several processes can read and write in that memory segment without calling operating system functions.

Why is communication between Java programs so time consuming?

If there is no concept of shared memory, then the communication between Java programs should be time consuming. In C where inter-process communication is quicker via shared memory compared to other modes of communication.