Function pipe_timestamp

freebsd/kern/sys_pipe.c:432–437

* Get a timestamp. * * This used to be vfs_timestamp but the higher precision is unnecessary and * can very negatively affect performance in virtualized environments (e.g., on * vms running on amd64 when using the rdtscp instruction). */

 * vms running on amd64 when using the rdtscp instruction).
 */
static void
pipe_timestamp(struct timespec *tsp)
{

	getnanotime(tsp);
}

/*
 * The pipe system call for the DTYPE_PIPE type of pipes.  If we fail, let