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    MESSAGE TRANSMITTING METHOD
    1.
    发明专利
    MESSAGE TRANSMITTING METHOD 失效

    公开(公告)号：JPH10307732A

    公开(公告)日：1998-11-17

    申请号：JP2997196

    申请日：1996-01-23

    Applicant: TANDEM COMPUTERS INC

    Inventor： FISHLER LEONARD R ,  CLARK THOMAS M

    IPC: G06F9/54 ,  G06F11/14 ,  G06F9/46

    Abstract: PROBLEM TO BE SOLVED: To increase data transmission efficiency among various processes and between the processes and a driver by providing a common memory part in a memory and allowing the same processor to transmit data by a common memory queue matrix system without copying it each time the data is transmitted. SOLUTION: The memory 112 includes a software process 120, a software disk process 120, a software disk process 122 and the common memory part 124, and the common memory part 124 includes a queue 125. The processes 120 and 122 access the common memory part 124 through a QIO library routine 126. A message sent by using the common memory part 124 and QIO library routine 126 is sent without copying data. Therefore, the time of communicating operation between the processes 120 and 122 in a single processor 106 is shortened, and consequently the processing speed of the whole system is increased.

    COMPUTER SYSTEM DATA I/O BY REFERENCE BETWEEN CPU AND I/O DEVICE
    2.
    发明专利
    COMPUTER SYSTEM DATA I/O BY REFERENCE BETWEEN CPU AND I/O DEVICE 失效

    公开(公告)号：JPH1011372A

    公开(公告)日：1998-01-16

    申请号：JP34141296

    申请日：1996-12-20

    Applicant: TANDEM COMPUTERS INC

    Inventor： FISHLER LEONARD R ,  ZARGHAM BAHMAN

    IPC: G06F13/00 ,  G06F9/46

    Abstract: PROBLEM TO BE SOLVED: To exclude the unrequired copying of data in both of inside a processor and between the processors by steps, etc., for converting a first pointer into plural sub-pointers, dividing a first data stream into plural parts and chaining a protocol header to the respective parts of the first data stream. SOLUTION: The processor 106 includes CPU 110 and a memory 112 and is connected to a disk drive 116 with a disk driver 132 and a disk controller 114. The processor 108 includes CPU 142 and the memory 144 and is connected to LAN 105 with a LAN controller 140. Then, the steps for converting the first pointer into the plural sub-pointers, dividing the first data stream into the plural parts and chaining the protocol header to the respective parts are provided so that the unrequired copying of data is excluded in the processors 106 and 108.

    COMPUTER SYSTEM DATA I/O USING REFERENCE BETWEEN CPU AND MULTIPLEX MEMORY DEVICE
    3.
    发明专利
    COMPUTER SYSTEM DATA I/O USING REFERENCE BETWEEN CPU AND MULTIPLEX MEMORY DEVICE 失效

    公开(公告)号：JPH103441A

    公开(公告)日：1998-01-06

    申请号：JP34141396

    申请日：1996-12-20

    Applicant: TANDEM COMPUTERS INC

    Inventor： FISHLER LEONARD R ,  ZARGHAM BAHMAN

    IPC: G06F13/12 ,  G06F9/46 ,  G06F9/54 ,  G06F13/00 ,  H04N21/218 ,  H04N21/2183 ,  H04N21/8355 ,  H04N7/16 ,  H04N7/173

    Abstract: PROBLEM TO BE SOLVED: To eliminate an unnecessary copying of data in a processor and also between processors by using a multiple DSC/S(data source/sink) to transform a DST(data stream). SOLUTION: A 1st pointer is generated by a 1st DSC/S which includes a 1st global network address designating a 1st storage position where a 1st DST is stored, and only the 1st pointer is transferred to a 2nd DSC/S. In the same way, a 2nd pointer is generated for a 2nd DST. At the same time, the 1st and 2nd pointers are chained together so that a 1st chained pointer is obtained. Then only the 1st chained pointer is transferred to a 3rd DSC/S via a 3rd node where a 3rd data fragment of a message is stored, and also the message is transferred to its destination. The 1st pointer is processed by the 3rd DSC/S and therefore transformed into plural secondary pointers. At the same time, a protocol header is chained to each part of the 1st DST.

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