Zero-Copy Implementation in the Linux Operating System

Xian Chuan Hu

doi:10.4028/www.scientific.net/AMR.765-767.968

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 765-767Zero-Copy Implementation in the Linux Operating...

Zero-Copy Implementation in the Linux Operating System

Abstract:

In this paper, we integrate the DMA data transmission technology and memory mapping technology to implement zero-copy in the Linux operating system. Zero-copy allocates memory address space to network card. In this case, the network card directly transmits the received data to the memory space allocated in advance when the network card transmits the data to the Linux kernel by using DMA. After that, zero-copy maps the allocated memory space to the process space of the user application. And then, the user application can access this allocated memory space directly and reduce the memory copies between the kernel and user space.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

968-971

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.765-767.968

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Online since:

September 2013

Authors:

Xian Chuan Hu

Keywords:

DMA, Linux Operating System, Zero-Copy

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