Top "Shared-memory" questions

Memory that may be simultaneously accessed by multiple programs

Writing to ashmem / why does android free ashmem?

I want to share data between two (ndk-)processes. For this I use ashmem using this source. One process is …

android android-ndk shared-memory ashmem
Shared-memory IPC synchronization (lock-free)

Consider the following scenario: Requirements: Intel x64 Server (multiple CPU-sockets => NUMA) Ubuntu 12, GCC 4.6 Two processes sharing large amounts of …

c++ synchronization ipc shared-memory lock-free
IPC speed and compare

I am trying to implement a real-time application which involves IPC across different modules. The modules are doing some data …

sockets ipc real-time shared-memory pipe
How and when to use /dev/shm for efficiency?

How is /dev/shm more efficient than writing the file on the regular file system? As far as I know, /…

linux performance io filesystems shared-memory
Sharing data array between two applications in Delphi

I want to share array data between two applications. In my mind, first program create the array and the second …

arrays delphi shared-memory
System V shared memory in Python?

How can I make use of the shmat(), shmdt(), shmctl(), shmget() calls from Python? Are they hidden somewhere in the …

python ipc sysv shared-memory
Atomic access to shared memory

I have a shared memory between multiple processes that interpets the memory in a certain way. Ex: DataBlock { int counter; …

c++ linux shared-memory memory-barriers stdatomic
what does it mean configuring MPI for shared memory?

I have a bit of research related question. Currently I have finished implementation of structure skeleton frame work based on …

parallel-processing mpi shared-memory openmpi message-passing
postgresql shared memory settings

Hi all! We have at present the following parameters related to shared memory: postgres shared_buffers = 7GB max_connections = 1 500 max_…

postgresql shared-memory
Mutex in shared memory when one user crashes?

Suppose that a process is creating a mutex in shared memory and locking it and dumps core while the mutex …

c++ c linux mutex shared-memory