What Is Shared Memory Segment in Linux?
Contents a Shared Memory Is an Extra Piece of Memory That Is Attached to Some Address Spaces for Their Owners to Use. as a Result, All of These Processes Share...
A shared memory is an extra piece of memory that is attached to some address spaces for their owners to use. As a result, all of these processes share the same memory segment and have access to it.
What is a shared memory segment?
A shared segment can be attached multiple times by the same process. A shared memory segment is described by a control structure with a unique ID that points to an area of physical memory. The identifier of the segment is called the shmid.
What is the use of shared memory in Linux?
Shared memory is an efficient means of passing data between programs. Depending on context, programs may run on a single processor or on multiple separate processors. Using memory for communication inside a single program, e.g. among its multiple threads, is also referred to as shared memory.
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