Dimetrodon: processor-level preventive thermal management via idle cycle injection
Processor-level dynamic thermal management techniques have long targeted worst-case thermal margins. We examine the thermal-performance trade-offs in average-case, preventive thermal management by actively degrading application performance to achieve long-term thermal control. We propose Dimetrodon,...
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Format: | Tagungsbericht |
Sprache: | eng |
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Zusammenfassung: | Processor-level dynamic thermal management techniques have long targeted worst-case thermal margins. We examine the thermal-performance trade-offs in average-case, preventive thermal management by actively degrading application performance to achieve long-term thermal control. We propose Dimetrodon, the use of idle cycle injection, a flexible, per-thread technique, as a preventive thermal management mechanism and demonstrate its efficiency compared to hardware techniques in a commodity operating system on real hardware under throughput and latency-sensitive real-world workloads. Compared to inflexible hardware techniques, Dimet-rodon achieves favorable trade-offs for temperature reductions up to 30% due to rapid heat dissipation during short idle intervals. |
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ISSN: | 0738-100X |
DOI: | 10.1145/2024724.2024745 |