| idle(2) | System Calls Manual | idle(2) |
idle - make process 0 idle
#include <unistd.h>
[[deprecated]] int idle(void);
idle() is an internal system call used during bootstrap. It marks the process's pages as swappable, lowers its priority, and enters the main scheduling loop. idle() never returns.
Only process 0 may call idle(). Any user process, even a process with superuser permission, will receive EPERM.
idle() never returns for process 0, and always returns -1 for a user process.
Linux.
Removed in Linux 2.3.13.
| 2023-10-31 | Linux man-pages 6.7 |