Key points are not available for this paper at this time.
Ensuring that users in a computation cluster can receive strong guarantees about immediate resource availability is surprisingly hard to do without wasting significant amounts of resources. The Google Flex system gives administrators a way to define resource pools that provide a range of strong, statistically-backed guarantees based on user and job behavior, while also reducing human effort by automation tied into the Borg cluster manager, Colossus distributed file system, and many other services. Flex has been widely adopted at Google, and has produced significant resource savings.
John Wilkes (2018) studied this question.