公开(公告)号：JPH11213012A

公开(公告)日：1999-08-06

申请号：JP30523398

申请日：1998-10-27

Applicant: IBM

Inventor： HAWKINS JOHN CHRISTOPHER ,  IBBOTSON JOHN BRYAN ,  NUTTALL MARK PATRICK

IPC: G06F17/30 ,  G06F9/50 ,  G06T1/00

Abstract: PROBLEM TO BE SOLVED: To reduce the delay of data access by processing data retrieving operation, which does not require performing of a first prescribed task, without performing the first prescribed task. SOLUTION: A queue manager 48 fetches a first job from the head of a list to decide whether making a watermark is required or not, etc., (S350). When a request does not require a watermark, the job is added to the job queue of a user within 'fast ring' whose processing operation to be performed is relatively faster than the making of the watermark (S410). When the making of a water mark is required, its processing job is added to the queue of a user in circularly linked 'slow ring' circularly linking jobs requiring the making of the watermark (S380). Consequently, this helps the improvement of assignment of resources to reduce delay to be encountered in the case of operation which is not processor intensive.

公开(公告)号：GB2341463A

公开(公告)日：2000-03-15

申请号：GB9820178

申请日：1998-09-12

Applicant: IBM

Inventor： HAWKINS JOHN CHRISTOPHER

IPC: G06F9/445 ,  G06F11/00 ,  G06F9/44 ,  G06F11/30

Abstract: A tool operable within an integrated development environment for client-server object oriented applications is disclosed. The tool comprises means for analysing a running application to trace the first instantiation of classes within the application; means for grouping classes according to when they are first instantiated into respective groups; and means for archiving these groups into respective archive files capable of being decoded prior to execution of the application on a client.

公开(公告)号：GB2332289A

公开(公告)日：1999-06-16

申请号：GB9726202

申请日：1997-12-11

Applicant: IBM

Inventor： HAWKINS JOHN CHRISTOPHER ,  IBBOTSON JOHN BRYAN ,  NUTTALL MARK PATRICK

IPC: G06F17/30 ,  G06F9/50 ,  G06T1/00 ,  G06F1/00 ,  G06F12/14

Abstract: Provided are a system and a method for data retrieval which identify from requested data retrieval operations those operations which require a particular processing task to be performed, and then separate those operations from operations not requiring the processing task. The separated sets of tasks are queued separately for independent processing. This enables resource scheduling to be performed which avoids the operations which do not require performance of the task from having to wait for the operations which do require the task. This is an advantage where the task is a processor-intensive task such as digital watermarking of images. A particular resource allocation method includes enqueing the set of operations requiring the processing task in a circularly linked list and then employing a scheduler to implement a round-robin allocation of resources for each of the system users in turn. Also provided is a pre-fetch policy whereby sets of data objects are retrieved from a data repository for processing in response to data retrieval requests and post-retrieval processing such as watermarking is initiated before an individual data object in the set has been selected.

公开(公告)号：GB2341463B

公开(公告)日：2003-02-19

申请号：GB9820178

申请日：1998-09-12

Applicant: IBM

Inventor： HAWKINS JOHN CHRISTOPHER

IPC: G06F9/445 ,  G06F11/00 ,  G06F9/44 ,  G06F11/30