초록 ▼

A multi processor system is interconnected through a memory means to multiple numbers of database engines on which there can operate multiple numbers of user programs in order to select buffers which have been modified so that the data in the buffers can be written or copied to a storage medium hold

A multi processor system is interconnected through a memory means to multiple numbers of database engines on which there can operate multiple numbers of user programs in order to select buffers which have been modified so that the data in the buffers can be written or copied to a storage medium holding database file structures. The user programs operate in parallel so that multiple concurrent update operations can be continuously completed.

대표청구항 ▼

1. In a multi-processor system for reading and writing data buffers from and to a storage medium whereby multiple processors and multiple user programs utilize a common memory working in conjunction with a master control program and database engines for availability to each processor, a system for p

1. In a multi-processor system for reading and writing data buffers from and to a storage medium whereby multiple processors and multiple user programs utilize a common memory working in conjunction with a master control program and database engines for availability to each processor, a system for providing concurrent operations which flush multiple buffers which are being operated upon from concurrently operating user programs which participate in buffer I/O activity, said system comprising:(a) multiple processor means connected to a commonly shared memory means, said processor means utilizing a stack architecture permitting an accessroutines program to run on top of each user application; (b) master control program means providing multiple user application programs which include: (b1) a plurality of database engines for providing multiple access routines to modified buffers in a buffer pool enabling parallel concurrent tasks from said user application programs to function concurrently; (b2) buffer pool means having multiple buffers for holding modified data to be copied to a plurality of database file structures; (c) storage structure means including database files which communicate with said data buffer pool and said database engine.