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The benefits of event-driven energy accounting in power-sensitive systems (2000)
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| Venue: | In Proceedings of the 9th ACM SIGOPS European Workshop |
| Citations: | 148 - 2 self |
BibTeX
@INPROCEEDINGS{Bellosa00thebenefits,
author = {Frank Bellosa},
title = {The benefits of event-driven energy accounting in power-sensitive systems},
booktitle = {In Proceedings of the 9th ACM SIGOPS European Workshop},
year = {2000}
}
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Abstract
A prerequisite of energy-aware scheduling is precise knowledge of any activity inside the computer system. Embedded hardware monitors (e.g., processor performance counters) have proved to offer valuable information in the field of performance analysis. The same approach can be applied to investigate the energy usage patterns of individual threads. We use information about active hardware units (e.g., integer/floatingpoint unit, cache/memory interface) gathered by event counters to establish a thread-specific energy accounting. The evaluation shows that the correlation of events and energy values provides the necessary information for energy-aware scheduling policies. Our approach to OS-directed power management adds the energy usage pattern to the runtime context of a thread. Depending on the field of application we present two scenarios that
Keyphrases
event-driven energy accounting power-sensitive system energy usage pattern integer floatingpoint unit individual thread cache memory interface event counter energy value valuable information necessary information energy-aware scheduling policy computer system performance analysis precise knowledge energy-aware scheduling hardware monitor processor performance counter active hardware unit runtime context os-directed power management thread-specific energy accounting
