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Modern NVMM is closing the gap between DRAM and persistent storage, both in terms of performance and features. Having both byte addressability and persistence on the same device gives NVMM an unprecedented set of features, leading to the…

Operating Systems · Computer Science 2023-05-04 Rémi Dulong , Quentin Acher , Baptiste Lepers , Valerio Schiavoni , Pascal Felber , Gaël Thomas

This paper introduces NVCache, an approach that uses a non-volatile main memory (NVMM) as a write cache to improve the write performance of legacy applications. We compare NVCache against file systems tailored for NVMM (Ext4-DAX and NOVA)…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-09-06 Rémi Dulong , Rafael Pires , Andreia Correia , Valerio Schiavoni , Pedro Ramalhete , Pascal Felber , Gaël Thomas

Non-volatile memory (NVM) technologies such as PCM, ReRAM and STT-RAM allow processors to directly write values to persistent storage at speeds that are significantly faster than previous durable media such as hard drives or SSDs. Many…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-09-11 Nachshon Cohen , Michal Friedman , James R. Larus

Finding the best way to leverage non-volatile memory (NVM) on modern database systems is still an open problem. The answer is far from trivial since the clear boundary between memory and storage present in most systems seems to be…

Databases · Computer Science 2019-08-21 Lucas Lersch , Wolfgang Lehner , Ismail Oukid

With the availability of hybrid DRAM-NVRAM memory on the memory bus of CPUs, a number of file systems on NVRAM have been designed and implemented. In this paper we present the design and implementation of a file system on NVRAM called…

Operating Systems · Computer Science 2018-11-05 Chandan Kalita , Gautam Barua , Priya Sehgal

Byte-addressable non-volatile memory (NVM) features high density, DRAM comparable performance, and persistence. These characteristics position NVM as a promising new tier in the memory hierarchy. Nevertheless, NVM has asymmetric read and…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-18 Ivy B. Peng , Maya B. Gokhale , Eric W. Green

Datalog is a logic programming language widely used in knowledge representation and reasoning (KRR), program analysis, and social media mining due to its expressiveness and high performance. Traditionally, Datalog engines use either…

Databases · Computer Science 2025-01-23 Yihao Sun , Sidharth Kumar , Thomas Gilray , Kristopher Micinski

The increased memory demands of workloads is putting high pressure on Last Level Caches (LLCs). Unfortunately, there is limited opportunity to increase the capacity of LLCs due to the area and power requirements of the underlying SRAM…

Hardware Architecture · Computer Science 2021-12-21 Apostolos Kokolis , Namrata Mantri , Shrikanth Ganapathy , Josep Torrellas , John Kalamatianos

The emerging hybrid DRAM-NVM architecture is challenging the existing memory management mechanism in operating system. In this paper, we introduce memos, which can schedule memory resources over the entire memory hierarchy including cache,…

Operating Systems · Computer Science 2017-03-23 Lei Liu , Mengyao Xie , Hao Yang

NVM is used as a new hierarchy in the storage system, due to its intermediate speed and capacity between DRAM, and its byte granularity. However, consistency problems emerge when we attempt to put DRAM, NVM, and disk together as an…

Operating Systems · Computer Science 2024-08-09 Guoyu Wang , Xilong Che , Haoyang Wei , Chenju Pei , Juncheng Hu

Non-volatile memory (NVM) is a class of promising scalable memory technologies that can potentially offer higher capacity than DRAM at the same cost point. Unfortunately, the access latency and energy of NVM is often higher than those of…

Hardware Architecture · Computer Science 2018-05-01 HanBin Yoon , Justin Meza , Rachata Ausavarungnirun , Rachael A. Harding , Onur Mutlu

Repeated off-chip memory accesses to DRAM drive up operating power for data-intensive applications, and SRAM technology scaling and leakage power limits the efficiency of embedded memories. Future on-chip storage will need higher density…

Emerging Technologies · Computer Science 2022-01-13 Lillian Pentecost , Alexander Hankin , Marco Donato , Mark Hempstead , Gu-Yeon Wei , David Brooks

Byte-addressable non-volatile memory (NVRAM) supports persistent storage with low latency and high bandwidth. Complex data structures in it ought to be updated transactionally, so that they remain recoverable at all times. Traditional…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-07-01 Thorsten Schütt , Florian Schintke , Jan Skrzypczak

NVMe(Non-Volatile Memory Express) is an industry standard for solid-state drives (SSDs) that has been widely adopted in data centers. NVMe virtualization is crucial in cloud computing as it allows for virtualized NVMe devices to be used by…

Hardware Architecture · Computer Science 2023-04-12 Yiquan Chen , Zhen Jin , Yijing Wang , Yi Chen , Hao Yu , Jiexiong Xu , Jinlong Chen , Wenhai Lin , Kanghua Fang , Chengkun Wei , Qiang Liu , Yuan Xie , Wenzhi Chen

The emergence of high-density byte-addressable non-volatile memory (NVM) is promising to accelerate data- and compute-intensive applications. Current NVM technologies have lower performance than DRAM and, thus, are often paired with DRAM in…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-08-17 Ivy Peng , Kai Wu , Jie Ren , Dong Li , Maya Gokhale

The memory demand of virtual machines (VMs) is increasing, while DRAM has limited capacity and high power consumption. Non-volatile memory (NVM) is an alternative to DRAM, but it has high latency and low bandwidth. We observe that the VM…

Operating Systems · Computer Science 2022-09-28 Sai sha , Chuandong Li , Yingwei Luo , Xiaolin Wang , Zhenlin Wang

Large persistent memories such as NVDIMM have been perceived as a disruptive memory technology, because they can maintain the state of a system even after a power failure and allow the system to recover quickly. However, overheads incurred…

Hardware Architecture · Computer Science 2021-06-29 Jie Zhang , Miryeong Kwon , Donghyun Gouk , Sungjoon Koh , Nam Sung Kim , Mahmut Taylan Kandemir , Myoungsoo Jung

Non-volatile memory (NVM) provides a scalable and power-efficient solution to replace DRAM as main memory. However, because of relatively high latency and low bandwidth of NVM, NVM is often paired with DRAM to build a heterogeneous memory…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-05-03 Kai Wu , Yingchao Huang , Dong Li

In recent years, there is an increasing demand of big memory systems so to perform large scale data analytics. Since DRAM memories are expensive, some researchers are suggesting to use other memory systems such as non-volatile memory (NVM)…

Performance · Computer Science 2016-10-03 Gaoying Ju , Yongkun Li , Yinlong Xu , Jiqiang Chen , John C. S. Lui

The byte-addressable Non-Volatile Memory (NVM) is a promising technology since it simultaneously provides DRAM-like performance, disk-like capacity, and persistency. The current NVM deployment is symmetric, where NVM devices are directly…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-01-31 Teng Ma , Mingxing Zhang , Kang Chen , Xuehai Qian , Yongwei Wu
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