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Non-volatile RAM (NVRAM) such as PRAM (Phase-change RAM), FeRAM (Ferroelectric RAM), and MRAM (Magnetoresistive RAM) has characteristics of both non-volatile storage and random access memory (RAM). These forms of NVRAM are currently being developed by major semiconductor companies and are expected to be an everyday component in the near future. The advent(More)
File systems make use of part of DRAM as the buffer cache to enhance its performance in traditional systems. In this paper, we consider the use of Non-Volatile RAM (NVRAM) as a write cache for metadata of the file system in embedded systems. NVRAM is a state-of-the-art memory that provides characteristics of both non-volatility and random byte(More)
Nonvolatile RAM (NVRAM) technology is advancing rapidly with 1-2Mb capacity single-chip prototypes becoming available from major semiconductor companies. We will soon see NVRAM become an everyday component of our commodity computers. This paper explores the use of NVRAM as part of the buffer cache. A nonvolatile buffer cache provides a computer system with(More)
Studies have shown much of today's data centers are over-provisioned and underutilized. Over-provisioning cannot be avoided as these centers must anticipate peak load with bursty behavior. Under-utilization, to date, has also been unavoidable as systems always had to be ready for that sudden burst of requests that loom just around the corner. Previous(More)
The need for web services is constantly increasing, while the requirements for web services are getting more and more complicated. Thus, web server systems with ever increasing performance are constantly in need. To efficiently satiate this need, web cluster systems, which have been a topic of much research, have been suggested due to its scalability. In(More)