基于龙芯3A的低功耗存储控制器的研发

The Research of Low-power Storage Controller Based on Loogson 3A

云计算和物联网时代的一个重要特点是信息数据量爆炸性增长。图灵奖获得者Jim Gray提出了一个经验定律,每18个月的数据量是有史以来数据量的总和,存储控制器是管理这些海量数据的中枢。存储控制器对主处理器的性能要求很高,尤其是I/O吞吐性能,目前中高端存储控制器采用功耗大、接口复杂的主处理器,造成整机功耗大、系统电路复杂等问题。龙芯3A处理器较好的解决了功耗问题,为高性能低功耗存储控制器的研发提供了可能。本文研究基于龙芯3A构架的低功耗存储控制器硬件设计、基于缓存算法的读写性能提升。

An important characteristic of Cloud computing and Internet of Things is information data quanti- ty explosive growth. Turing Award winner Jim Gray presents an empirical law, every 18 months, the amount of data that is the history of data amount, the storage controller is the management of these large data center. The storage controller on the performance of the main processor request is very high, especially for I / O throughput performance, now high -end storage controller uses the large power consumption, complicated interfaces a host processor, resulting in large power consumption of the complete machine, system of complicated circuit brings PCB plate complex. Loogson 3A processor solved PCB cloth edition area and power consumption, for high per- formance and low power storage controller R ＆ D may be provided. This paper studies based on Godson 3A structure low power storage controller hardware design provement. , algorithm based on read write cache performance im-