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1. 发明授权

US5023774A Data I/O transaction method and system 失效
标题翻译：数据I / O交易方式和系统
公开(公告)号：US5023774A
公开(公告)日：1991-06-11
申请号：US268810
申请日：1988-11-08
申请人： Naohumi Sakai , Masashi Tsuchida , Kazuhiko Ohmachi , Yasuhiro Imai , Toshio Honma
发明人： Naohumi Sakai , Masashi Tsuchida , Kazuhiko Ohmachi , Yasuhiro Imai , Toshio Honma
IPC分类号： G06F3/06 , G06F3/02 , G06F13/12
CPC分类号： G06F13/122
摘要： After passing through the process in which the number of one page I/O requests generated in a certain unit time period, the number of multiple pages I/O requests, and the number of pages required at each of the multiple pages I/O request are input, the quantity of the I/O requests generated in the above-described unit time period is calculated in accordance with the thus-input values. The unit (the number of pages) for a multiple pages I/O actually performed by one time operation of the I/O control device corresponding to the multiple pages I/O request from users is determined in accordance with the user's instruction or specific criterion for the system based on the result of the above-described calculation, the performance of the CPU, the performance of the I/O control device, the performance of the DASD (Direct Access Storage Decive), and to which DASD each of I/O requests corresponds. The result of this determination is employed as the unit (the number of pages) for the multiple pages I/O performed by one time operation of the I/O control device. In case of the specific criterion for the system, the structure may be constituted in such a manner that it can be automatically changed in accordance with the state of change in the quantity of the I/O request.
摘要翻译：在通过在特定单位时间段内产生的一页I / O请求的数量的过程，多页I / O请求的数量以及多页I / O请求中的每一个所需的页数根据这样输入的值计算在上述单位时间内产生的I / O请求的数量。根据用户的指示或具体标准确定与通过用户的多页I / O请求对应的I / O控制装置的一次操作实际执行的多页I / O单元（页数）对于基于上述计算结果的系统，CPU的性能，I / O控制设备的性能，DASD（直接访问存储决定）的性能，以及每个I / O请求对应。该确定的结果被用作I / O控制装置的一次操作执行的多页I / O的单位（页数）。在系统的具体标准的情况下，可以以可以根据I / O请求的数量的变化的状态自动地改变结构的结构。

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