Method and apparatus for asynchronously reading and writing data streams into a storage device using shared memory buffers and semaphores to synchronize interprocess communications

摘要: A method, apparatus, and article of manufacture for asynchronously writing reading multiple data streams is disclosed. The method comprises the steps a plurality sub-streams into shared memory buffers in parallel using write process each stream, from read sub-stream, sub-stream storage device. Data passing between processes are stored buffers, with access to controlled by semaphores. semaphores used write-block buffer render inaccessible other processes, write-unblock next available it process, read-block buffer, read-unblock buffer. This allows bandwidth devices be more fully utilized, improves I/O throughput. apparatus system performing these operations, computer-readable program medium tangibly embodying above steps.