计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
32期
63-64,89
,共3页
高速串行IO口(SRIO)%增强型内存直接存取(EDMA)%CPU负荷
高速串行IO口(SRIO)%增彊型內存直接存取(EDMA)%CPU負荷
고속천행IO구(SRIO)%증강형내존직접존취(EDMA)%CPU부하
Serial RapidIO(SRIO)%Enhanced Direct Memory Access(EDMA)%CPU load
串行RapidIO支持两种工作方式:Message和DirectIO方式.DirectIO方式使用简单,但是它在连续传输多包的情况下,CPU需要等待LSU寄存器空闲.为了解决该问题,提出了RapidIO链的传输新方案,即用EDMA通道代替CPU配置SRIO的KSU寄存器.实验表明该方案能有效地降低CPU负荷.
串行RapidIO支持兩種工作方式:Message和DirectIO方式.DirectIO方式使用簡單,但是它在連續傳輸多包的情況下,CPU需要等待LSU寄存器空閒.為瞭解決該問題,提齣瞭RapidIO鏈的傳輸新方案,即用EDMA通道代替CPU配置SRIO的KSU寄存器.實驗錶明該方案能有效地降低CPU負荷.
천행RapidIO지지량충공작방식:Message화DirectIO방식.DirectIO방식사용간단,단시타재련속전수다포적정황하,CPU수요등대LSU기존기공한.위료해결해문제,제출료RapidIO련적전수신방안,즉용EDMA통도대체CPU배치SRIO적KSU기존기.실험표명해방안능유효지강저CPU부하.
SRIO(Serial RapidIO) supports two work modes:Message and DirectIO.The DirectIO mode is simple to operate,but in multi-packets transmission case,DSP CPU must wait until LSU(Load and Save unit) register is free.To solve this problem,the paper presents a new transimission way named RapidIO chain,which uses EDMA(Enhanced Direct Memory Access) channel instead of CPU to configure LSU registers of SRIO.Resuhs of experiment show that RapidlO chain can reduce CPU load effectively.
