进程与线程的区别

进程与线程的区别 The essential difference is that while each process has a complete set of its own variables, threads share the some data. This sounds somewhat risky, and indeed it can be shared variables make communication between threads more efficient and easier to program than interprocess communication. Moreover, on some operating systems, threads are more "lightweight" than processes--it takes less overhead to create and destroy individual threads than it does to lanuch new processes.