Nice

   

Declaration:

Procedure Nice ( N : Integer) ;

Description:

Nice adds -N to the priority of the running process. The lower the priority numerically, the less the process is favored.

Only the superuser can specify a negative N, i.e. increase the rate at which the process is run.

Errors:

Errors are returned in LinuxError

sys_eperm

A non-superuser tried to specify a negative N, i.e. do a priority increase.

See also:

GetPriority, SetPriority, Nice (2)

Example

Program Example15;

{ Program to demonstrate the Nice and Get/SetPriority functions. }

Uses linux;

begin
  writeln ('Setting priority to 5');
  setpriority (prio_process,getpid,5);
  writeln ('New priority = ',getpriority (prio_process,getpid));
  writeln ('Doing nice 10');
  nice (10);
  writeln ('New Priority = ',getpriority (prio_process,getpid));
end.