nice

Adjust the current process’s scheduling niceness by $incr.

Σύνοψη

POSIX::nice(5);   # lower priority

Τι επιστρέφεται

The new niceness value. When the new value genuinely is 0, returns the string "0 but true" to distinguish it from error. On error, returns undef and sets $!.

Οριακές περιπτώσεις

• Positive increments lower priority; only root can pass negative values to raise priority.

Διαφορές από το upstream

Fully compatible with upstream POSIX.