作者
Sudhanva Gurumurthi, Anand Sivasubramaniam, Mahmut Kandemir, Hubertus Franke
发表日期
2003/5/1
期刊
ACM SIGARCH Computer Architecture News
卷号
31
期号
2
页码范围
169-181
出版商
ACM
简介
A large portion of the power budget in server environments goes into the I/O subsystem - the disk array in particular. Traditional approaches to disk power management involve completely stopping the disk rotation, which can take a considerable amount of time, making them less useful in cases where idle times between disk requests may not be long enough to outweigh the overheads. This paper presents a new approach called DRPM to modulate disk speed (RPM) dynamically, and gives a practical implementation to exploit this mechanism. Extensive simulations with different workload and hardware parameters show that DRPM can provide significant energy savings without compromising much on performance. This paper also discusses practical issues when implementing DRPM on server disks.
引用总数
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S Gurumurthi, A Sivasubramaniam, M Kandemir… - ACM SIGARCH Computer Architecture News, 2003