(填空题)
采用双缓冲区技术时,假设从磁盘上读一块信息到缓冲区所需的时间为T,从缓冲区把信息传送到用户工作区所需时间为t,用户进程对信息进行处理所需时间为p。(这里(t+p) 正确答案
![来源:www.examk.com](data:image/png;base64,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)
答案解析
略
正确答案
答案解析
略
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