nice \*- set program priority
of the process is changed to the argument.
Positive priorities get less
service than normal; 0 is default.
Only the super-user may specify a negative priority.
The value of 4 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
The effect can be cancelled by
The actual running priority of a
argument plus a number that
ranges from 100 to 119 depending on the
cpu usage of the process.
is set if the user requests a
outside the range of 0 to 20
and is not the super-user.