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As the expected emerging Non-Volatile Memory (NVM) technologies, such as 3DXPoint, are in production, there has been a recent push in the big data processing community from storage-centric towards memory-centric. Generally, in large-scale systems, distributed memory management through traditional network with TCP/IP protocol exposes performance bottleneck. Briefly, CPU- centric network involves context...
The dramatic increase in data and connectivity demand, in addition to heterogeneous device capabilities, poses a challenge for future wireless networks. One of the promising solutions is Device-to-Device (D2D) networking. D2D networking, advocating the idea of connecting two or more devices directly without traversing the core network, is promising to address the increasing data and connectivity demand...
The Ultra-DIMM constituted by DRAM and Flash memory is a promising solution used to tackle the challenges existing in traditional DRAM in terms of energy consuming and scalability. In this hybrid memory system, DRAM is used as the data buffer of Flash memory due to the performance and endurance gaps between main memory and Flash. However, the inconsistency of access granularity between the main memory...
Large graphs analytics has been an important aspect of many big data applications, such as web search, social networks and recommendation systems. Many research focuses on processing large scale graphs using distributed system over past few years. And numbers of studies turn to construct graph processing system on a single server-class machine in consideration of cost, usability and maintainability...
Solid state disks (SSDs) become more and more popular in personal devices and data centers. Flash chips can be packaged in Hard disk drive (HDD) form factors and provide the same interface as HDDs. This character makes SSDs easily replace HDDs in existing storage systems. PCIe-based SSD can provide a higher I/O performance, but it is still a little expensive. This paper studies the feasibility of...
New data intensive applications, which are continuously emerging in daily routines of mobile devices, significantly increase the demand for data, and pose a challenge for current wireless networks due to scarce resources. Although bandwidth is traditionally considered as the primary scarce resource in wireless networks, the developments in communication theory shifts the focus from bandwidth to other...
The non-volatile memory (NVM) has the illustrious merits of byte-addressability, fast speed, persistency and low power consumption, which make it attractive to be used as main memory. Commonly, user process dynamically acquires memory through memory allocators. However, traditional memory allocators designed with in-place data writes are not appropriate for non-volatile main memory (NVRAM) due to...
Flash memory-based SSD RAID has an excellent I/O performance with high stability, which making it get more and more attention from companies and manufacturers, especially in I/O-intensive environments. However, frequently updating parity also makes the SSD have a higher overhead in the process of garbage collection. To this end, we propose RAID-Aware SSD (RA-SSD) that could distinguish user data from...
The increasing popularity of applications such as video streaming in today's mobile devices introduces higher demand for throughput, and puts a strain especially on cellular links. Cooperation among mobile devices by exploiting both cellular and local area connections is a promising approach to meet the increasing demand. In this paper, we consider that a group of cooperative mobile devices, exploiting...
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