多核系统中提升启动速度之策略  

Strategy of accelerating booting process in multi-core systems

作　　者：王江[1] 

机构地区：[1]上海贝尔股份有限公司N&P,上海201206

出　　处：《电子技术应用》2014年第3期25-28,共4页Application of Electronic Technique

摘　　要：快速启动能力是衡量产品性能的一个重要指标。针对应用越来越广泛的多内核处理器,从优化启动流程、改进模块的加载和初始化、设计内核间通信机制等方面,介绍了缩短启动时间的一些经验,特别是启动任务的分配、串行执行到并行执行的转变、内存的分阶段初始化、PCIe总线的快速初始化等技巧。实际测试表明,新策略不仅有效地缩短了启动时间,而且具有易移植、可扩展等优点。The ability of fast boot is one of the key metrics of product performance.As multi-core microprocessors are being employed widely in more and more applications,the paper introduces some experiences to shorten the boot time,including optimizing boot process,improving the loading and initialization method of modules,designing communicating mechanism between cores,etc.It also elaborates some techniques,such as boot tasks assignment and parallelization,memory division and initialization,fastinitialization of PCIe bus.Experiments verify that the new strategy can not only shorten the boot time,but also be transplantable and scalable.

关 键 词：启动 PCIE 多内核处理器 

分 类 号：TP338.2[自动化与计算机技术—计算机系统结构]