When the SetUID bit is turned on in the inode of an executable ordinary file object in a Linux file system, a process that loads this program for execution, and starts its initial thread running it$,$ will execute the program:

with a higher priority than if the bit was not turned on

with superuser $($root$)$ privilege

with the process Group Identity $($EGID$)$ changed to that of the inode GID

faster than if the bit was not turned on

with the process Owner Identity $($EUID$)$ changed to that of the inode UID