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The shared-cache contention on Chip Multiprocessors causes performance degradation to applications and hurts system fairness. Many previously proposed solutions schedule programs according to runtime sampled cache performance to reduce cache contention. The strong dependence on runtime sampling inherently limits the scalability and effectiveness of those techniques. This paper explores the combination of program-locality analysis with job co-scheduling. The rationale is that program locality analysis typically offers a large-scope view of various facets of an application including data access patterns and cache requirement. That knowledge complements the local behaviors sampled by runtime systems. The combination offers the key to overcoming the limitations of prior co-scheduling techniques.
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