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    • 2. 发明授权
    • Computer program device and product for timely processing of data using a queued direct input-output device
    • 计算机程序设备和产品,用于使用排队的直接输入输出设备及时处理数据
    • US06345326B1
    • 2002-02-05
    • US09252730
    • 1999-02-19
    • Michael E. BaskeyFrank W. BriceDaniel F. CasperJanet R. EastonSteven G. GlassenEugene P. HefferonBruce H. RatcliffArthur J. StaggLeslie W. Wyman
    • Michael E. BaskeyFrank W. BriceDaniel F. CasperJanet R. EastonSteven G. GlassenEugene P. HefferonBruce H. RatcliffArthur J. StaggLeslie W. Wyman
    • G06F1300
    • H04L25/05
    • A computer program device and product is provided for timely processing of data. The computer program device comprises a program storage device readable by a digital processing apparatus and a program means including instructions executable by the digital processing apparatus by designating at least one set of queues in the queuing mechanism as input queues and another as output queues; issuing a signal adapter instruction to provide initiative to check content of any or all queues in the queuing mechanism; specifying initiate-output or initiate-input appropriately by means of said signal adapter instruction to cause associated adapter to asynchronously process said output or input queues; and causing synchronization by means of said signal adapter instruction by signaling the associated data queues to update all entries in order to render them current. The computer program product is for use with a computer system and has a main storage in processing communication with an interface element having adapters for storing a queuing mechanism storing data. It comprises of a data storage device including a computer usable medium having computer readable program means for ensuring proper and timely processing of data, for dedicating at least one set of queues of the queuing mechanism as input queues and another set as output queues and for generating a signal adapter instruction designated to provide initiative to check content of any or all queues in said queuing mechanism.
    • 提供计算机程序设备和产品以及时处理数据。 计算机程序设备包括可由数字处理设备读取的程序存储设备和包括可由数字处理设备执行的指令的程序设备,通过将排队机构中的至少一组队列指定为输入队列,另一个作为输出队列; 发出信号适配器指令,提供主动检查排队机构中任何或所有队列的内容; 通过所述信号适配器指令适当地指定启动输出或启动输入,以使相关联的适配器异步地处理所述输出或输入队列; 并通过所述信号适配器指令通过发信号通知相关的数据队列来更新所有条目以使其成为当前状态,从而进行同步。 计算机程序产品用于计算机系统,并且具有处理与具有用于存储存储数据的排队机构的适配器的接口元件的通信的主存储器。 它包括数据存储装置,包括具有计算机可读程序装置的计算机可用介质的计算机可用介质,用于确保适当和及时地处理数据,用于将排队机构的至少一组队列作为输入队列,另一组作为输出队列,并用于生成 指定用于提供主动检查所述排队机构中的任何或所有队列的内容的信号适配器指令。
    • 6. 发明授权
    • Low overhead I/O interrupt
    • 低开销I / O中断
    • US06754738B2
    • 2004-06-22
    • US09966633
    • 2001-09-28
    • Frank W. Brice, Jr.Janet R. EastonSteven G. GlassenKenneth J. OakesDonald W. SchmidtHarry M. Yudenfriend
    • Frank W. Brice, Jr.Janet R. EastonSteven G. GlassenKenneth J. OakesDonald W. SchmidtHarry M. Yudenfriend
    • G06F1320
    • G06F9/4825G06F13/24
    • An apparatus, method and program product for sending data to or receiving data from one or more I/O devices in an I/O operation with a main storage controlled by a processor in a data processing system. The apparatus includes a time-of-day (TOD) register for containing a TOD value, a clock for containing a current TOD value, and a summary register having a first condition when any one of said devices requests an I/O operation and a second condition when no devices have an outstanding I/O request, each device having an outstanding I/O request sets the summary register to its first condition only when the summary register is in its second condition, and further places the current TOD value in the TOD register. A checking program determines if a specified time delay has been exceeded between the value in said TOD register and the current TOD for each requested I/O operation. The checking program drives an interrupt to the processor when the specified time delay has been exceeded.
    • 一种用于在I / O操作中从一个或多个I / O设备向数据处理系统中由处理器控制的主存储器发送数据或从其接收数据的装置,方法和程序产品。 该装置包括用于包含TOD值的时间(TOD)寄存器,用于包含当前TOD值的时钟,以及当所述设备中的任何一个请求I / O操作时具有第一状态的汇总寄存器,以及 当没有设备具有未完成的I / O请求的第二个条件时,每个具有未完成的I / O请求的设备仅在汇总寄存器处于其第二条件时才将汇总寄存器设置为其第一个条件,并且将当前的TOD值进一步置于 TOD寄存器。 检查程序确定在所述TOD寄存器中的值和每个所请求的I / O操作的当前TOD之间是否已经超过指定的时间延迟。 当超过指定的时间延迟时,检查程序将驱动中断给处理器。