Designing Computer Systems with MEMS-based Storage (CMU-CS-00-137)
نویسندگان
چکیده
For decades the RAM-to-disk memory hierarchy gap has plagued computer architects. An exciting new storage technology based on microelectromechanical systems (MEMS) is poised to ll a large portion of this performance gap, signi cantly reduce system power consumption, and enable many new applications. This paper explores the system-level implications of integrating MEMS-based storage into the memory hierarchy. Results show that standalone MEMS-based storage reduces I/O stall times by 4{74X over disks and improves overall application runtimes by 1.9{4.4X. When used as on-board caches for disks, MEMS-based storage improves I/O response time by up to 3.5X. Further, the energy consumption of MEMS-based storage is 10{54X less than that of state-of-the-art low-power disk drives. The combination of the high-level physical characteristics of MEMS-based storage (small footprints, high shock tolerance) and the ability to directly integrate MEMS-based storage with processing leads to such new applications as portable gigabit storage systems and ubiquitous active storage nodes.
منابع مشابه
Modeling and Performance of MEMS-Based Storage Devices (CMU-CS-00-100)
MEMS-based storage devices are seen by many as promising alternatives to disk drives. Fabricated using conventional CMOS processes, MEMS-based storage consists of thousands of small, mechanical probe tips that access gigabytes of high-density, nonvolatile magnetic storage. This paper takes a rst step towards understanding the performance characteristics of these devices by mapping them onto a d...
متن کاملAn Analytical Solution to a MEMS Seek Time Model
The huge disparity between memory access times and disk access times has been the subject of extensive research. CPU speed has been increasing rapidly but disk access latency has lagged behind—disk transfer rates have been increasing at 40% per year, while seek times and rotational latency have been increasing at less than 10% per year [4]. This disparity has created a performance bottleneck in...
متن کاملTiming-accurate Storage Emulation (CMU-CS-01-146)
Timing-accurate storage emulation fills an important gap in the set of common performance evaluation techniques for proposed storage designs: it allows a researcher to experiment with not-yet-existing storage components in the context of real systems executing real applications. As its name suggests, a timing-accurate storage emulator appears to the system to be a real storage component with se...
متن کاملMEMS-Based Storage Devices and Standard Disk Interfaces: A Square Peg in a Round Hole? (CMU-PDL-03-102)
MEMS-based storage devices (MEMStores) are significantly different from both disk drives and semiconductor memories. The differences motivate the question of whether they need new abstractions to be utilized by systems, or if existing abstractions will be sufficient. This paper addresses this question by examining the fundamental reasons that the abstraction works for existing devices, and by s...
متن کاملSecure Continuous Biometric-Enhanced Authentication (CMU-CS-00-134)
Biometrics have the potential to solidify person-authentication by examining \unforgeable" features of individuals. This paper explores issues involved with e ective integration of biometric-enhanced authentication into computer systems and design options for addressing them. Because biometrics are not secrets, systems must not use them like passwords; otherwise, biometric-based authentication ...
متن کامل