A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the mother...

A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file.
Which of the following should the administrator use to reduce the output of memory messages?