SoftRDMA

Mao, Miao; Ren, Fengyuan; Luo, Xi; Xie, Jing; Meng, Qingkai; Cheng, Wenxue

doi:10.1145/3106989.3106995

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…It reduces computing resource consumption while guaranteeing extremely low transmission latency. However, most of the current optimization work of RDMA for distributed file systems only uses RDMA libraries or plug-ins as communication submodules of the system, and does not make full use of the excellent features of RDMA [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Accelio, the RDMA middleware used in CephFS, encapsulates the underlying RDMA network functions and only provides an abstract call interface [28,29].…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Distributed File System Based on RDMA

Gao

Zhang

et al. 2023

Applied Sciences

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With the rapid development of computer and network technology, to deal with explosively growing mass data correctly, distributed file systems have come into being, and they have been applied in many enterprises. However, in the packet storage process, the traditional TCP/IP transmission protocol has to pass through the operating system and application software layer. It takes up many server resources and memory bus bandwidth, which places a heavy burden on the server’s CPU and memory. In this paper, we analyze the research status of the distributed file system based on analyzing and comparing the advantages of RDMA over traditional TCP Ethernet communication architecture. We propose an optimization scheme for the network transmission performance of the original FastDFS to replace the original TCP module with an RDMA network communication module, and we design a lightweight distributed file system with higher performance than the original FastDFS, which is suitable for small file storage. Using the zero-copy technology and kernel bypass technology of soft RDMA, the network communication mechanism in FastDFS is optimized to free the server’s CPU from heavy data processing work. In this paper, the RDMA-based FastDFS is compared with the original FastDFS. The test results show that the network transmission performance of the optimized FastDFS is improved compared with the original FastDFS, which achieves the expected effect and can better meet the requirements of mass small file storage for today’s Internet applications.

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Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Distributed File System Based on RDMA

Gao

Zhang

et al. 2023

Applied Sciences

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Handling Inherent Delays in Virtual IoT Gateways

Hazra¹,

Duquennoy²,

Wang

et al. 2019

2019 15th International Conference on Distributed Computing in Sensor Systems (DCOSS)

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Massive deployment of diverse ultra-low power wireless devices in different application areas has given rise to a plethora of heterogeneous architectures and communication protocols. It is challenging to provide convergent access to these miscellaneous collections of communicating devices. In this paper, we propose VGATE, an edge-based virtualized IoT gateway for bringing these devices together in a single framework using SDRs as technology-agnostic radioheads. SDR platforms, however, suffer from large unpredictable delays. We design a GNU Radio-based IEEE 802.15.4 experimental setup using LimeSDR, where the data path is time-stamped at various points of interest to get a comprehensive understanding of the characteristics of the delays. Our analysis shows that GNU Radio processing and LimeSDR buffering delays are the major delays. We decrease the LimeSDR buffering delay by decreasing the USB transfer size but show that this comes at the cost of increased processing overhead. We modify the USB transfer packet size to investigate which USB transfer size provides the best balance between buffering delay and processing overhead across two different host computers. Our experiments show that for the best measured configuration the mean and jitter of latency decreases by 37% and 40% respectively for the host computer with higher processing resources. We also show that the throughput is not affected by these modifications.

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RDMA Load Balancing via Data Partition

Jiang

et al. 2019

2019 28th International Conference on Computer Communication and Networks (ICCCN)

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SoftRDMA

Cited by 3 publications

References 10 publications

Design and Optimization of a Distributed File System Based on RDMA

Design and Optimization of a Distributed File System Based on RDMA

Handling Inherent Delays in Virtual IoT Gateways

RDMA Load Balancing via Data Partition

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