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Catching Accurate Profiles in Hardware

By Satish Narayanasamy, Timothy Sherwood, Suleyman Sair, Brad Calder and George Varghese


Run-time optimization is one of the most important ways of getting performance out of modern processors. Techniques such as prefetching, trace caching, memory disambiguation etc., are all based upon the principle of observation followed by adaptation, and all make use of some sort of profile information gathered at run-time. Programs are very complex, and the real trick in generating useful run-time profiles is sifting through all the unimportant and infrequently occurring events to find those that are important enough to warrant optimization

Year: 2003
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