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Author Anagnostopoulou, Vlasia ♦ Biswas, Susmit ♦ Saadeldeen, Heba ♦ Savage, Alan ♦ Bianchini, Ricardo ♦ Yang, Tao ♦ Franklin, Diana ♦ Chong, Frederic T.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Low-power State ♦ Barely Alive Memory Server ♦ Keeping Data Active ♦ High Response Time ♦ Handlingtraffic Spike ♦ Service Energy Consumption ♦ Searchservice Usingacooperative Main-memorycache ♦ Active Andidle State ♦ Peak Utilization ♦ Fast Re-activation ♦ Internet Service ♦ Memory Access ♦ Load Burstsin Eachenergy-saving Scheme ♦ Server State ♦ Server Energy Efficiency ♦ Large Parameter Space ♦ Barely-alive State ♦ Energy-oblivious System ♦ Additional Benefit ♦ Energy Saving ♦ Current Resource ♦ Wepropose Asystemthatcombinesabarelyalive State
Abstract Current resource provisioning schemes in Internet services leave servers less than 50 % utilized almost all the time. At this level of utilization, the servers ’ energy efficiency is substantially lower than at peak utilization. A solution to this problem could be dynamically consolidating workloads into fewer servers and turning others off. However, services typically resist doing so, because of high response times during reactivation in handlingtraffic spikes. Moreover, services often want the memory and/or storage of all servers to be readily available at all times. In this paper, we propose a family of barely-alive active low-power server states that facilitates both fast re-activation and access to memory while in a low-power state. We compare these states to previously proposed active andidle states.In particular, we investigatethe impact of load burstsin eachenergy-saving scheme.We also evaluate the additional benefits of memory access under low-power states witha studyof a searchservice usingacooperative main-memorycache.Finally,wepropose asystemthatcombinesabarelyalive state with the off state. We find that the barely-alive states can reduce service energy consumption by up to 38%, compared to an energy-oblivious system. We also find that these energy savings are consistent across a large parameter space.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study