This document discusses Pig on Tez, which runs Pig jobs on the Tez execution engine rather than MapReduce. The team introduces Pig and Tez, describes the design of Pig on Tez including logical and physical plans, custom vertices and edges, and performance optimizations like broadcast edges and object caching. Performance results show speedups of 1.5x to 6x over MapReduce. Current status is 90% feature parity with Pig on MR and future work includes supporting Tez local mode and improving stability, usability, and performance further.