AT&T UNIX™PC Unix System V Users Manual - tenox
AT&T UNIX™PC Unix System V Users Manual - tenox AT&T UNIX™PC Unix System V Users Manual - tenox
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NICE (2) NICE (2) NAME nice - change priority of a process SYNOPSIS int nice (incr) int incr; DESCRIPTION Nice adds the value of incr to the nice value of the calling process. A process's nice value is a positive number for which a more positive value results in lower CPU priority. A maximum nice value of 39 and a minimum nice value of 0 are imposed by the system. Requests for values above or below these limits result in the nice value being set to the corresponding limit. Nice will fail and not change the nice value if incr is negative and the effective user ID of the calling process is not super-user. IEPERMI RETURN VALUE Upon successful completion, nice returns the new nice value minus 20. Otherwise, a value of - 1 is returned and errno is set to indicate the error. SEE ALSO nice(l), exec(2). - 1 -
- Page 663: BRK(2) BRK ( 2 ) NAME brk, sbrk - c
- Page 667 and 668: CHMOD (2) CHMOD (2) NAME chmod - ch
- Page 669: CHOWN(2) CHOWN(2) NAME chown - chan
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- Page 675 and 676: CREAT ( 2 ) CREAT ( 2 ) NAME creat
- Page 677 and 678: DUP (2) DUP (2) NAME dup - duplicat
- Page 679 and 680: EXEC (2) EXEC (2) NAME execl, execv
- Page 681: EXEC (2) EXEC (2) Search perm1ss10n
- Page 684 and 685: EXIT (2) EXIT (2) WARNING See WARNI
- Page 686 and 687: FCNTL (2) FCNTL (2) immediately wit
- Page 689 and 690: FORK(2) FORK(2) NAME fork - create
- Page 691: GETPID ( 2} GETPID (2) NAME getpid,
- Page 694 and 695: I I I I I I I I I I I I I I I I I I
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- Page 699: LINK ( 2 ) LINK ( 2 ) NAME link - l
- Page 703 and 704: MKNOD (2) MKNOD (2) NAME mknod - ma
- Page 705: MOUNT (2) MOUNT (2) NAME mount - mo
- Page 708 and 709: MSGCTL(2) MSGCTL ( 2 ) user ID of t
- Page 710 and 711: MSGGET (2) MSGGET (2) SEE ALSO msgc
- Page 712 and 713: MSGOP ( 2) MSGOP (2) the calling pr
- Page 717 and 718: OPEN ( 2 ) OPEN ( 2 ) NAME open - o
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- Page 725 and 726: PLOCK(2) PLOCK(2) NAME plock - lock
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- Page 735 and 736: SEMCTL ( 2 ) SEMCTL ( 2 ) NAME semc
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- Page 739 and 740: SEMOP ( 2) SEMOP {2) NAME semop - s
- Page 741 and 742: SEMOP (2) SEMOP (2) Operation permi
- Page 743: SETPGRP (2) SETPGRP (2) NAME setpgr
- Page 747 and 748: SHMCTL (2) SHMCTL (2) NAME shmctl -
- Page 749 and 750: � ! SHMGET (2) SHMGET (2) NAME sh
- Page 751 and 752: SHMOP ( 2 ) SHMOP ( 2 ) NAME shmop
- Page 753 and 754: SIGNAL (2) SIGNAL (2) NAME signal -
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- Page 757 and 758: STAT ( 2 ) STAT ( 2 ) NAME stat, fs
- Page 759 and 760: STIME(2) STIME(2) NAME stime - set
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NICE (2) NICE (2)<br />
NAME<br />
nice - change priority of a process<br />
SYNOPSIS<br />
int nice (incr)<br />
int incr;<br />
DESCRIPTION<br />
Nice adds the value of incr to the nice value of the calling process.<br />
A process's nice value is a positive number for which a more<br />
positive value results in lower CPU priority.<br />
A maximum nice value of 39 and a minimum nice value of 0 are<br />
imposed by the system. Requests for values above or below these<br />
limits result in the nice value being set to the corresponding limit.<br />
Nice will fail and not change the nice value if incr is negative<br />
and the effective user ID of the calling process is not super-user.<br />
IEPERMI<br />
RETURN VALUE<br />
Upon successful completion, nice returns the new nice value<br />
minus 20. Otherwise, a value of - 1 is returned and errno is set to<br />
indicate the error.<br />
SEE ALSO<br />
nice(l), exec(2).<br />
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