计算机科学
网络数据包
隐藏物
架空(工程)
互连
解码方法
数据压缩
计算机网络
计算机硬件
嵌入式系统
操作系统
计算机视觉
电信
作者
Jing Zhan,Matt Poremba,Yi Xu,Yuan Xie
标识
DOI:10.1109/aspdac.2014.6742954
摘要
As the number of on-chip processing elements increases, the interconnection backbone bears bursty traffic from memory and cache accesses. In this paper, we propose a compression technique called NoΔ, which leverages delta compression to compress network traffic. Specifically, it conducts data encoding prior to packet injection and decoding before ejection in the network interface. The key idea of NoΔ is to store a data packet in the Network-on-Chip as a common base value plus an array of relative differences (Δ). It can improve the overall network performance and achieve energy savings because of the decreased network load. Moreover, this scheme does not require modifications of the cache storage design and can be seamlessly integrated with any optimization techniques for the on-chip interconnect. Our experiments reveal that the proposed NoΔ incurs negligible hardware overhead and outperforms state-of-the-art zero-content compression and frequent-value compression.
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