公开(公告)号：BR9200053A

公开(公告)日：1992-09-08

申请号：BR9200053

申请日：1992-01-10

Applicant: IBM

Inventor： BEAN BRADFORD M ,  BIERCE ANNE E ,  CHRISTENSEN NEAL T ,  CLARK LEO J ,  JONES CHRISTINE C ,  KRYGOWSKY MATHEW A ,  REICK KEVIN F

IPC: G06F9/38 ,  G06F9/52 ,  G06F12/08 ,  G06F15/16 ,  G06F15/177 ,  G06F15/80 ,  G06F12/12

公开(公告)号：CA2056716A1

公开(公告)日：1992-07-17

申请号：CA2056716

申请日：1991-11-29

Applicant: IBM

Inventor： BEAN BRADFORD M ,  BIERCE ANNE E ,  CHRISTENSEN NEAL T ,  CLARK LEO J ,  JONES CHRISTINE C ,  KRYGOWSKI MATTHEW A ,  REICK KEVIN F

IPC: G06F9/38 ,  G06F9/52 ,  G06F12/08 ,  G06F15/16 ,  G06F15/177 ,  G06F15/80

Abstract: PO9-90-010 Plural requests for storage accessing are processed in plural stages of a storage-request pipeline. Pipeline processing is not interrupted when one or more requests must wait for a resource to start its processing, or when a pipeline stage must process for a long period in relation to the time allocated for a processing operation in the pipeline. Waiting is done in a wait path connected to a particular processing stage in the pipeline. A request is shunted from the pipeline into a wait path when processing the request in the pipeline would delay pipeline processing. When the wait has ended, a request re-enters the pipeline from its wait path. The pipeline is provided in a multiprocessor (MP) in which storage requests are provided asynchronously to a tightly coupled system storage and usually may be handled and processed asynchronously by the pipeline. The pipeline output may direct the processed requests to a shared intermediate cache or to the system main storage.