基于Cache锁和直接缓存访问的网络处理优化方法

发布时间：2018-02-07 11:55

本文关键词： 网络处理直接缓存访问 cache锁系统互联 I?O优化　出处：《计算机研究与发展》2014年03期 　论文类型：期刊论文

【摘要】：通过分析计算机系统网络数据处理相关程序的访存行为、局部性特点和系统交互等问题,指出在高速网络环境下传统处理器网络子系统设计存在很大缺陷,并进一步提出一种基于软硬件协同设计的优化方案.该方案具体包括改进的直接缓存访问技术、关键程序的cache锁策略和相应系统互连结构及一致性协议等.实验表明,与传统方案相比,基于该方案的网络TCP传输带宽提高约48%,极限情况下UDP丢包率下降40%,传输延时降低超过10%.网络测试程序在与SPEC2000测试程序并发执行情况下,网络数据带宽提高约44%.此外还讨论了该优化方案与其他网络优化技术共同使用的基本原则和相应策略.
[Abstract]:By analyzing the memory access behavior, local characteristics and system interaction of computer system network data processing programs, it is pointed out that the traditional processor network subsystem design has great defects in high-speed network environment. Furthermore, an optimization scheme based on hardware and software co-design is proposed, which includes improved direct cache access technology, key program cache lock strategy, system interconnection structure and consistency protocol. Compared with the traditional scheme, the transmission bandwidth of the network TCP based on this scheme is increased by about 48 percent, the packet loss rate of the UDP is reduced by 40 percent and the transmission delay is reduced by more than 10 percent under the limit condition. The network test program is executed concurrently with the SPEC2000 test program. The network data bandwidth is increased by about 44 points. In addition, the basic principles and corresponding strategies of the optimization scheme and other network optimization techniques are discussed.
【作者单位】：计算机体系结构国家重点实验室;中国科学院计算技术研究所;中国石油北京油气调控中心;龙芯中科技术有限公司;
【基金】：“核高基”国家科技重大专项基金项目(2010ZX01036-001-002,2009ZX01028-002-003,2009ZX01029-001-003) 国家自然科学基金项目(60921002,61003064,61050002,61070025,61100163,61133004,61173001,61232009) 国家“八六三”高技术研究发展计划基金项目(2012AA010901,2012AA011002,2012AA012202,2013AA014301) 计算机体系结构国家重点实验室开放课题(ICT-ARCH201002)
【分类号】：TP332

【相似文献】