create child process

In Python, because of the existence of the global interpreter lock Gil, the multithreading in Python does not significantly improve the efficiency of the program (in this case, CPU-intensive), then in the processing of CPU-intensive computing, multi-

In Python, because of the existence of the global interpreter lock Gil, the multithreading in Python does not significantly improve the efficiency of the program (in this case, CPU-intensive), then in the processing of CPU-intensive computing, multi-

This article mainly introduces how to learn the communication between parent and child processes from the child_process module of Node. js, which has some reference value. If you are interested, you can refer to it. This article mainly introduces #

Document directory 1.1. System 1.2 popen: create a sub-process 1.3 exec Functions 1.4 fork 6.2 memory ing and sub-process: 6.3 copy of file descriptor 1. What is a process: a process is a program in execution Program: code> resource>

ZZ from:http://www.cnblogs.com/oubo/archive/2011/10/10/2394593.html Python subprocess Create child processes Python provides multiple modules for creating child processes, and I am more accustomed to using the subprocess module because there is

int status;pid_t t = fork (), if (t) {waitpid (T, &status, 0);}    else{System ("VI temp.txt"); Exit (0);} After both the parent and child processes have finished executing the parsing process: if and else or select branch.The main reason is that

Fork () function function--Create a new process1. The parent-child process has separate data segments, heaps, stacks, shared code segmentsEach process in Linux has a 4G virtual address space (separate 3G user space and shared 1G kernel space), and

Linux programming, threading, process exit sequence problems are confusing, if the parent process/thread before the child process/thread termination, what the system will do? Conversely, what will the system do if the subprocess/thread terminates

2015.1.25Sunday, CloudyA total of m rows n column elements in a two-dimensional array aThere are i*n+j elements from a[0][0] to A[i][j]P represents the address of row No. 0 of line No. 0, so the address of element A[i][j] is P + i*n+jA[I][J] = = P[i*

1. Introduction First clear a question: if a thread of a multithreaded procedure calls the fork function, then the newly created subprocess will not automatically create the same number of threads as the parent process, it is just the full copy of