sync2freebsd
Schedule file system updates
Usage
#include <unistd.h>
void
sync(void);
Library
Standard C Library (libc, -lc)
Overview
The sync() system call forces a write of dirty (modified) buffers in the block buffer cache out to disk. The kernel keeps this information in core to reduce the number of disk I/O transfers required by the system. As information in the cache is lost after a system crash, a sync() system call is issued frequently by the kernel process syncer(4) (about every 30 seconds).
The fsync(2) system call may be used to synchronize individual file descriptor attributes.
Releases
9 releases since Debian 5.0 (Lenny); the text changed 6 times.