面向并发性能下降的调度策略的综述

发布时间：2018-02-22 11:56

本文关键词： 片上多核处理器共享资源并发性能下降并置执行映射调度　出处：《计算机研究与发展》2014年01期 　论文类型：期刊论文

【摘要】：随着行业应用的飞速扩张,数据中心以及云等日益成为主流服务平台.高性能的片上多核系统也随之成为重要的可分配资源之一.然而,在对多用户提供服务(并发执行、并置执行)时,其所固有的共享资源会引发严重的并发性能下降.在此背景下,多核系统的性能以及资源利用率问题成为研究热点.软件调度策略作为一种性价比较高的调节手段对于缓解资源冲突一直行之有效,然而,硬件技术的变迁对其调节的效力将产生一定影响.首先从片上多核结构关键技术入手,对共享资源的变化进行了详细阐述,在此基础上,对当前主流应用领域中两种不同类型的软件调度策略进行介绍和分析.在总结现有策略的局限性以及面临的新挑战的同时,对未来的研究趋势作了展望.
[Abstract]:With the rapid expansion of industry applications, data centers and clouds are increasingly becoming mainstream service platforms. High-performance multi-core systems on a chip also become one of the important distributable resources. In this context, the inherent shared resources can cause severe concurrent performance degradation. The performance and resource utilization of multi-core systems have become a hot issue. As a cost-effective adjustment method, software scheduling strategy has been effective in alleviating resource conflicts. The change of hardware technology will have a certain impact on the effectiveness of its adjustment. Firstly, the change of shared resources is described in detail from the key technology of multi-core structure on chip. This paper introduces and analyzes two kinds of different kinds of software scheduling policies in the current mainstream application field, summarizes the limitations of the existing policies and the new challenges they face, and forecasts the research trend in the future.
【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);中国科学院大学;
【基金】：国家“八六三”高技术研究发展计划基金项目(2012AA010902) 国家自然科学基金项目(61202055,60925009,60921002,61100011) 国家“九七三”重点基础研究发展计划基金项目(2011CB302504) “核高基”国家科技重大专项基金项目(2009ZX01036-001-002,2011ZX01028-001-002)
【分类号】：TP308

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