How lock contention affects energy use in a CMP server.

Takeshi Ogasawara,Ken Sakamura

OOPSLA09: ACM SIGPLAN Object Oriented Programming Systems and Applications Conference Orlando Florida USA October, 2009（2009）

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摘要

A server application running on a chip multiprocessor with many hardware threads often requires extra processor speed (and energy) because of lock contention. We show that boosting the processor speed for frequently contended critical sections in a Java VM can save more energy on a DVFS-enabled server.

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