NICE(II) 3/15/72 NICE(II)
NAME
nice - set program priority
SYNOPSIS
(nice = 34.)
(priority in r0)
sys nice
nice(priority)
DESCRIPTION
The currently executing process is set into the priority
specified by priority. If priority is positive, the
priority of the process is below default; if negative the
process must be the super-user and its priority is raised.
The valid range of priority is 20 and -220. The value of 16
is recommended to users who wish to execute long-running
programs without flak from the administration.
The effect of this call is passed to a child process by the
fork system call. The effect can be cancelled by another
call to nice with a priority of 0.
SEE ALSO
nice(I)
DIAGNOSTICS
The error bit (c-bit) is set if the user requests a priority
outside the range of 0 to 20 and is not the super-user.