2 ms·

Launching Processes on Linux

• loa-in-backup 8y ago
  > To try and fix this performance issue, UNIX-like system started to provide the vfork syscall. It was standardized by POSIX and it behaves similar to fork with two important differences: > - The child share all the memory with parent, including all mmap segments and the stack (with some exceptions such as memory lock created by mlock or mlockall). > - Parent execution is halted until the child either call execve functions or _exit. If the execution can't continue in parallel, then it doesn't seem really that useful