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2009
ACM

Core monitors: monitoring performance in multicore processors

10 years 9 months ago
Core monitors: monitoring performance in multicore processors
As we reach the limits of single-core computing, we are promised more and more cores in our systems. Modern architectures include many performance counters per core, but few or no intercore counters. In fact, performance counters were not designed to be exploited by users, as they now are, but simply as aids for hardware debugging and testing during system creation. As such, they tend to be an “after thought” in the design, with no standardization across or within platforms. Nonetheless, given access to these counters, researchers are using them to great advantage [17]. Furthermore, evaluating counters for multicore systems has become a complex and resource-consuming task. We propose a Performance Monitoring System consisting of a specialized CPU core designed to allow efficient collection and evaluation of performance data for both static and dynamic optimizations. Our system provides a transparent mechanism to change architectural features dynamically, inform the Operating Syst...
Paul E. West, Yuval Peress, Gary S. Tyson, Sally A
Added 28 May 2010
Updated 28 May 2010
Type Conference
Year 2009
Where CF
Authors Paul E. West, Yuval Peress, Gary S. Tyson, Sally A. McKee
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