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Archit. Code Optim."],"published-print":{"date-parts":[[2022,9,30]]},"abstract":"<jats:p>Adoption of renewable energy in power grids introduces stability challenges in regulating the operation frequency of the electricity grid. Thus, electrical grid operators call for provisioning of frequency regulation services from end-user customers, such as data centers, to help balance the power grid\u2019s stability by dynamically adjusting their energy consumption based on the power grid\u2019s need. As renewable energy adoption grows, the average reward price of frequency regulation services has become much higher than that of the electricity cost. Therefore, there is a great cost incentive for data centers to provide frequency regulation service.<\/jats:p>\n          <jats:p>\n            Many existing techniques modulating data center power result in significant performance slowdown or provide a low amount of frequency regulation provision. We present\n            <jats:sc>PowerMorph<\/jats:sc>\n            , a tight QoS-aware data center power-reshaping framework, which enables commodity servers to provide practical frequency regulation service. The key behind\n            <jats:sc>PowerMorph\u00a0<\/jats:sc>\n            is using \u201ccomplementary workload\u201d as an additional knob to modulate server power, which provides high provision capacity while satisfying tight QoS constraints of latency-critical workloads. We achieve up to 58% improvement to TCO under common conditions, and in certain cases can even completely eliminate the data center electricity bill and provide a net profit.\n          <\/jats:p>","DOI":"10.1145\/3524129","type":"journal-article","created":{"date-parts":[[2022,3,21]],"date-time":"2022-03-21T12:34:53Z","timestamp":1647866093000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["PowerMorph: QoS-Aware Server Power Reshaping for Data Center Regulation Service"],"prefix":"10.1145","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4301-7588","authenticated-orcid":false,"given":"Ali","family":"Jahanshahi","sequence":"first","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nanpeng","family":"Yu","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Wong","sequence":"additional","affiliation":[{"name":"University of California, Riverside, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2022,8,22]]},"reference":[{"key":"e_1_3_2_2_2","first-page":"143:1\u2013143:4","volume-title":"Proceedings of the Conference on Design, Automation & Test in Europe (DATE\u201914)","author":"Aksanli Baris","year":"2014","unstructured":"Baris Aksanli and Tajana Rosing. 2014. 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